Tuna can be bought in 12-oz cans for $1.10 each or in 10 oz cans that sell for $0.98 each. Which is a better buy? USE UNIT RATIOS TO ANSWER THIS PROBLEM.
Answer: Option 1
Step-by-step explanation:
I'd say the easiest way would be to find the prize per oz in both options
Option 1: $1.10/12oz = approx 0.092 (so around 9 pennies)
Option 2: $0.98/10oz = 0.098 (also 9 pennies but still slightly more than option 1)
You can check by choosing a random number of oz and multiplying them by the price to see which costs more
ex: 120 oz
option 1 : 10 x 1.10 = $11
option 2: 12 x 0.98 = $11.76
What is r in the following equation? 5(-4) - r +1 = -37 PLEASE HELPP ILL GIVE EXTRA CREDIT
Answer:
Step-by-step explanation:
5 times -4 is -20, so the equation becomes -20 - r + 1 = -37
-20 plus 1 equals -19, so the equation is now -19 - r = -37
Then you add 19 to both sides to isolate r
-r = -18
To get a positive r, divide or multiply both sides by -1, and you get r = 18
[tex]5(-4)-r+1=-37[/tex]
Simplify:
[tex]-20-r+1=-37[/tex]
Combine Like Terms:
[tex](-r)+(-20+1)=-37[/tex]
[tex]-r-19=-37[/tex]
Add 19 to both sides:
[tex]-r-19+19=-37+19[/tex]
[tex]-r=-18[/tex]
Divide both sides by -1:(To remove the negative from the variable r)
[tex]\dfrac{-r}{-1}=\dfrac{-18}{-1}[/tex]
[tex]\boxed{r=18}[/tex]
The confidence interval for a population proportion is (0.61, 0.81). What the the sample proportion and the margin of error.
The margin of error for the confidence interval for a population is 0.71 ± 0.1.
What is margin of error?The degree of error in survey findings from random sampling is known as the margin of error in statistics. A wider margin of error in statistics denotes a reduced likelihood of relying on a survey's or poll's findings, meaning that there will be less confidence in the results' ability to accurately reflect a community. It is a very important tool for market research since it shows the degree of assurance that should be placed in survey data by the researchers.
The margin of error is given as:
MOE = U - L / 2
MOE = 0.81 - 0.61 / 2
MOE = 0.2 / 2
MOE = 0.1
The interval is:
Interval = P ± 0.1
Interval = (0.61 + 0.1) ± 0.1
Interval = 0.71 ± 0.1
Hence, the margin of error for the confidence interval for a population is 0.71 ± 0.1.
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Every month, the bakery orders blueberries to use in their blueberry muffins. They had a stock of 1.38 kilograms of blueberries. Last month, they used 1.12 kilograms. This month, they need a total of 1.26 kilograms of blueberries.
How many kilograms of blueberries do they need to order?
0.12
0.26
1
1.26
The height of a cylinder is 20 cm. The
circumference of the base of the cylinder is 10 cm.
Which measurement is closest to the volume of the
cylinder in cubic cm?
A measurement which is closest to the volume of the cylinder in cubic cm is 158.87 cubic cm.
How to calculate the volume of a cylinder?Mathematically, the volume of a cylinder can be calculated by using this formula:
Volume of a cylinder, V = πr²h
Where:
V represents the volume of a cylinder.h represents the height of a cylinder.r represents the radius of a cylinder.Next, we would determine the radius of the base of the cylinder:
Circumference of a circle = 2πr
10 = 2πr
Radius, r = 1.59 cm.
Substituting the given parameters into the volume of a cylinder formula, we have the following;
Volume of a cylinder, V = 3.142 × (1.59)² × 20
Volume of a cylinder, V = 158.87 cubic cm.
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Box plot pls answer what is the outlier and a box plot represents the data excluding the outlier
Answer: The outlier is $95 and the plot is D.
Step-by-step explanation:
An outlier is the data value that's much larger or much smaller than the other data values. Here, that is $95.
Excluding this value, our smallest is $15 and the largest is $60. We plot a dot at both of these points.
The middle dot is the median. To find this, we will arrange the values in order and find the middle value. (We are excluding $95.) After doing this process, we see the middle dot is at 39.
$15, $20, $38, $60, $45, $40, $35, $50
$15, $20, $35, $38, $40, $45, $50, $60
----, ----, ----, $38, $40, ----, ----, ----
[tex]38 + 40 = 78, \;\;78 / 2\;\;\boxed{= 39}[/tex]
This means we have dots at 15, 39 and 60, leading us to answer D.
Drag figures and equations to the table to show the net and surface area of the rectangular prism.
The numbers are
W = 3cm.
I = 6cm.
H =3cm.
Pleaseee helppp
According to the posed question, the rectangular prism's surface area would be 90 cm2.
What is a Rectangular Prism's Surface Area?
The total surface area of a rectangular prism's rectangular faces is alluded to as the prism's surface area. There are two distinct types of it: lateral surface area and total surface area. In contradiction to the lateral surface area, which only includes the lateral faces and omit the base areas, the total surface area of a rectangular prism refers to the area among all six faces.
Given, W = 3 cm, L = 6 cm, and H = 3 cm
surface area = 2 (WL + LH + HW)
= 2 (18 + 18 + 9)
= 2× 45 = 90 cm².
Consequently, the rectangular prism's surface area is 90 cm².
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Please help me with this question
Answer: it’s C. My dear <3
Step-by-step explanation: hope this helps (btw I’m just being nice so don’t ask)
1. If you get a new job, outline the three forms you will have to deal with to file your taxes. Which one do you have to fill out when you start? Which one does your employer send you? Which one do you use to file your taxes?
2. What is the difference between gross income, taxable income, and adjusted gross income?
If you get a new job, outline the forms you will have to deal with to file your taxes. The form has to fill in Form W-9 sent by the employer and given use to file your taxes.
What is the purpose of Form W - 9?The company determines what information to include in the Form 1098 or Form 1099 based on the information provided on the Form W-9.
Information about taxpayers is gathered using Form W-9 to assist with informational reporting to the IRS.
Although it is utilised in other contexts as well, the Form W-9 is most frequently employed when working with businesses that employ independent contractors.
The form requests that a taxpayer enter their name, residence, tax bracket, and withholding specifications.
Therefore, from the following conditions are:
1. Outline the forms you will need to file your taxes if you get a new job. Form W-9 must be completed and returned to the employer in order to file your taxes.
A W-2 will be given to you detailing your profits. New employees are frequently required to complete a Form W-4 rather than a Form W-9 in order to supply their company with information about their taxpayers.
2. Gross income is all income from whatever source derived that is not excluded or deferred from income. AGI is gross income minus "for AGI" deductions. Taxable income is AGI minus "from AGI" deductions.
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The value of a car deprecates by 35% each year.at the end of 2007 the value of the car was £5460. Work out the value of the car at the end of 2006
Answer:
£3549
Step-by-step explanation:
The value of the car depreciates by 35% each year, so we can calculate the depreciation for 2006 as follows:
Depreciation for 2006 = 0.35 * £5460 = £1911
The value of the car at the end of 2006 is:
£5460 - £1911 = £3549
Answer:
The depreciation rate:
Step-by-step explanation:
Step 1: Total depreciation = 35% x 2 years = 70%
Step 2: Find the value of the car at the end of 2006:
Value at the end of 2006 = 5460 x (100 - 70)/100 = 1638
Therefore, the value of the car at the end of 2006 was £1638.
Explain how you would solve negative x = 9 algebraically what inverse operation ?should be used is there an invisible number in front of x ?if so what is it? if not how do you solve this?
The solution to the equation "negative x = 9" is "x = -9". There is no invisible number in front of "x" in this equation.
Solving the equation "negative x = 9" algebraicallyTo solve the equation "negative x = 9" algebraically, we want to isolate the variable "x" on one side of the equation.
First, we notice that "negative x" means "-x", so we can rewrite the equation as:
-x = 9
To isolate "x", we need to perform an inverse operation on both sides of the equation. Since "-x" means the opposite of "x", we need to perform the opposite operation, which is to add "x" to both sides:
-x + x = 9 + x
Simplifying the left-hand side by canceling out the "-x" and "+x", we get:
0 = 9 + x
We can further simplify this equation by subtracting 9 from both sides:
0 - 9 = 9 + x - 9
-9 = x
So the solution to the equation "negative x = 9" is "x = -9".
There is no invisible number in front of "x" in this equation, so we don't need to worry about any additional steps or calculations.
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A building has two elevators that both go above and below ground. At a certain time of day, the travel time it takes elevator A to reach height in meters is seconds. The travel time it takes elevator B to reach height in meters is seconds. what is the height of each elevator at this time
The height of each elevator at this time is, -2.5 m, negative means below ground level.
What is the relation between time, distance & speed ?The distance covered by the object is equal to the product of the speed at which the object is moving and time taken for covering the distance.
Distance = Time × Speed
To find how long it would take each elevator to reach ground level, we can set h = 0 in the given expressions for their travel times:
Elevator A:
= 0.8h + 16
= 0.8(0) + 16
= 16 seconds
Elevator B:
= -0.8h + 12
= -0.8(0) + 12
= 12 seconds
Therefore, elevator A would take 16 seconds and elevator B would take 12 seconds to reach ground level at this time.
To find at what height the elevators pass each other, we can set their travel times equal to each other and solve for h:
0.8h + 16 = -0.8h + 12
1.6h = -4
h = -2.5
Now, we can substitute value of h in the expression
Elevator A:
= 0.8(-2.5) + 16
= 14 seconds
Elevator B:
= -0.8(-2.5) + 12
= 14 seconds
Therefore, the elevators would pass each other 14 seconds after they both start moving towards each other.
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The complete question:
Elevators A building has two elevators that both go above and below ground.
At a certain time of day, the travel time it takes elevator A to reach height h in meters is 0.8h+16 seconds.
The travel time it takes elevator B to reach height h in meters is -0.8h+12 seconds.
How long would it take each elevator to reach ground level at this time? If the two elevators travel toward one another, at what height do they pass each other? How long would it take?
Write an equation for the polynomial graphed below
The equation of the polynomial function graphed is given as follows:
y = -0.125(x³ + x² - 14x - 24).
How to obtain the equation of the polynomial?From the graph, the roots of the polynomial are given as follows:
x = -3.x = -2.x = 4.Considering the roots, the linear factors of the polynomial are given as follows:
x + 3.x + 2.x - 4.Applying the Factor Theorem, the function, as a product of it's linear factors, is given as follows:
y = a(x + 3)(x + 2)(x - 4).
y = a(x² + 5x + 6)(x - 4)
y = a(x³ + x² - 14x - 24).
When x = 0, y = 3, hence the leading coefficient a is obtained as follows:
-24a = 3
a = -0.125.
Hence the function is:
y = -0.125(x³ + x² - 14x - 24).
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Write the following in standard form: 4x^3 - 2x^4 + 8x + 10x^2-4
Answer:
-2x^4+4x^3+8x
Step-by-step explanation:
please check the answer given
The temperatures, in °C , at midnight on 10 consecutive days were 4, 1, 0, –2, –1, –3, 1, –2, 3, –1. (a) Find the difference between the highest and the lowest temperature
Answer:
7 degrees C
Step-by-step explanation:
To solve this question, we can start by ordering the temperatures from least to greatest:
4, 1, 0, -2, -1, -3, 1, -2, 3, -1 --> -3, -2, -2, -1, -1, 0, 1, 1, 3, 4
the lowest temperature would be -3 in this list, and the highest temperature in this list would be 4. We can find the difference in temperature using subtraction:
4-(-3) = 4+3=7
The difference is 7 degrees C.
Please see attached photo thanks
The single payment 2 years from now will be of $13,287.26
What is Compound interest?Compound interest is a method of calculating the interest charge. In other words, it is the addition of interest on interest.
Given that money earns 7.74% compounded quarterly, a payment of $2,070 due 2 years ago, but not paid, and $300 today.
To calculate investments or debts with compound interests.
Where:
V(n) is the value of the debt after n years,
R is the annual interest rate,
t is the number of times the debt is going to be compounded annually,
n is the number of years the debt is going to be compounded,
P is the principal amount being owed.
we know that the debt will be cancelled in 2 years from now. Therefore we have that n = 2 for both debts, because after the 2rd year the debts.
Then you have that t = 4, because the debt is compounded quarterly.
We can add up the two principals $2,070 + $300 = $2,370 to make it our value P, so P = 9000.
And finally we have that R = 7.74.
Then, solve the equation for P
P = A / (1 + r/n)^nt
P = 2,370 / (1 + 7.74/365)(365)^(2)
P = $13,287.26
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Satellites Sputnik, Yeltsin, and Plekov often temporarily line up in order in a great circle. The circumferen
is 24,900 miles, and the satellites orbit at about 200 miles above the surface. If, while in a great circle, Sp
miles from Yeltsin, and Yeltsin is 11,500 miles from Plekov, how far apart are Sputnik and Plekov?
11,500
Yeltsin
2
9,000
Sputnik
26,156 miles
25,528 miles
5,656 miles
5.277.2 miles
Plekov
Answer:
Step-by-step explanation:
The satellites Sputnik, Yeltsin, and Plekov are in a great circle, which is a circular path on the surface of a sphere that passes through the center of the sphere. The circumference of this great circle is 24,900 miles, and the satellites orbit at a height of approximately 200 miles above the surface of the sphere.
If Sputnik is 2 miles from Yeltsin, and Yeltsin is 11,500 miles from Plekov, then the total distance from Sputnik to Plekov can be found by adding the distance between Sputnik and Yeltsin to the distance between Yeltsin and Plekov. So, the total distance is 2 miles + 11,500 miles = 11,502 miles.
However, this distance is not the direct distance between Sputnik and Plekov, since they are not on a straight line but on a curved path on the surface of the sphere. To find the actual distance between Sputnik and Plekov, we can use the formula for the great-circle distance between two points on a sphere, which is:
d = acos(sin(lat1) * sin(lat2) + cos(lat1) * cos(lat2) * cos(long2 - long1)) * R
where lat1 and lat2 are the latitudes of the two points, long2 - long1 is the difference in longitudes of the two points, R is the radius of the sphere, and acos is the inverse cosine function.
Using this formula, we can calculate the distance between Sputnik and Plekov to be approximately 26,156 miles.
Colin’s mean mark over three exams was 83%. His mean mark for the first two exams was 76%. What was Colin’s score in the final exam?
Answer: 97%
Step-by-step explanation:
If for the 3 exams, the mean was 83% and the first two were 76%, that means..
76 + 76 = 152 (divided by two = 76%/current mean)
In order to get an average of 83%, Colin has to have a score that is higher than 76% and somewhat closer to above 90%.
By doing trial and error (testing different percents between 76% and 80%), you can come to the conclusion that, 76% + 76% + 97% = 249 / 3 = 83
Name two pairs of suplimentary angles. need ASAP PLSS IM BEGGING
angle BCE and angle CEF
b
angle BFE and ang BCE
c
angle CBF and angle CEF
d
angle CBF and angle BFE
In the given figure angle CBF and angle CEF are supplementary angles. So Option C is correct.
What is an angle ?An angle is a mathematical term, which we can define, when two straight lines or rays meet at a common endpoint. The common point is called the vertex of an angle. The word angle comes from a Latin word named ‘angulus,’.
Given that,
A figure which contains one trapezium BCEF
And in this portion angle CBF and angle BCE are opposite angles
and opposite angles are supplementary angles,
Hence, the pairs of angles are ∠CBF & ∠CEF
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prove that sin51 + sin81 - cos21 = 0
Answer:
Step-by-step explanation:
To prove that sin(51) + sin(81) - cos(21) = 0, we can use the trigonometric identity:
sin(A + B) = sin(A)cos(B) + cos(A)sin(B)
We can rewrite 51 and 81 as the sum of two angles:
51 = 45 + 6
81 = 90 - 9
Using the above identity, we can write:
sin(51) = sin(45 + 6) = sin(45)cos(6) + cos(45)sin(6) = (2/2)sin(6) + (2/2)cos(6) = sin(6) + cos(6)
and
sin(81) = sin(90 - 9) = sin(90)cos(9) - cos(90)sin(9) = 0 + (-1)sin(9) = -sin(9)
Finally,
sin(51) + sin(81) - cos(21) = sin(6) + cos(6) - sin(9) - cos(21) = (sin(6) + cos(6)) - (sin(9) + cos(21))
We know that sin(90 - x) = cos(x) and cos(90 - x) = sin(x), so we can rewrite the right-hand side as:
(sin(6) + cos(6)) - (cos(90 - 9) + sin(90 - 21)) = (sin(6) + cos(6)) - (cos(9) + sin(69))
We also know that sin(180 - x) = -sin(x) and cos(180 - x) = -cos(x), so we can rewrite the right-hand side as:
(sin(6) + cos(6)) - (cos(9) + -sin(111)) = (sin(6) + cos(6)) - (-sin(111) + cos(9))
Since sin(6) + cos(6) = sin(6 + 90) = sin(96) and -sin(111) + cos(9) = sin(69 - 180) = -sin(111), we can simplify the expression further to:
sin(6) + cos(6) - (-sin(111)) + cos(9) = sin(96) + cos(9)
Since sin(x + y) = sin(x)cos(y) + cos(x)sin(y), we can write:
sin(96) + cos(9) = sin(60)cos(36) + cos(60)sin(36) = (2/2)sin(36) + (√3/2)cos(36) = sin(36) + (√3/2)cos(36)
Finally, since sin(2x) = 2sin(x)cos(x), we can write:
sin(36) + (√3/2)cos(36) = 2sin(18)cos(18) + (√3/2)cos(36) = 2(√2/2)(√2/2) + (√3/2)(√2/2) = (√2 + √6)/2 + (√6/2) = (√2 + √6)
So, sin(51) + sin(81) - cos(21) = (√2 + √6) ≠ 0.
Therefore, we have shown that sin(51) + sin(81) - cos(21) ≠ 0, and the statement "sin(51) + sin(81) - cos(21) = 0" is false.
For a certain year, the combined revenue of Nintendo and Sony was $44 billion. If that year the revenue for Sony was $12 billion more than the revenue for Nintendo, how much was the revenue for Nintendo?
Answer:
Nintendo's revenue was $21 billion
Step-by-step explanation:
Please help me with this !
The length of side AB within quadrilateral ABCD is 14.301 meters.
How to determine the length of a missing by trigonometry
In this problem we find a geometric system formed by a quadrilateral and two diagonals, whose parameters are listed below:
CD = 20 m
m ∠ BCD = 20°
m ∠ ACB = 40°
m ∠ ADC = 45°
m ∠ ADB = 50°
The missing side can be found by combining law of sine and law of cosine:
Law of sine
20 / sin 65° = BD / sin 20°
BD = 7.548
20 / sin 75° = AD / sin 60°
AD = 17.932
Law of cosine
AB = √(AD² + BD² - 2 · AD · BD · cos ADB)
AB = √(17.932² + 7.548² - 2 · 17.932 · 7.548 · cos 50°)
AB = 14.301
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An account that earned 23% annual interest compounded quarterly for 3 years and currently has a balance of $6258.
The initial balance of the account was approximately $3541.83.
What is interest is compounded?This can be illustrated by using basic math: if you have $100 and it earns 5% interest each year, you'll have $105 at the end of the first year. You will wind up with $110.25 at the conclusion of the second year.
We can utilise the compound interest formula to find a solution to this issue:
A = P(1 + r/n)ⁿⁿ
In this case, we have P = the initial balance of the account, r = 0.23 (23% expressed as a decimal), n = 4 (since interest is compounded quarterly), t = 3 years, and A = $6258. We can solve for P by rearranging the formula:
P = A / (1 + r/n)ⁿⁿ
Substituting the values we know, we get:
P = 6258 / (1 + 0.23/4)⁴ˣ³
Simplifying this expression gives:
P = 6258 / 1.76757
P ≈ $3541.83
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8. Write the fraction from the number line that is greater than
4
but less than
5
18
3
8
The fractions greater than 5/8 are 6/8, 7/8 and 8/8
The fractions less than 3/8 are 1/8 and 2/8The fractions greater than 3/8 are 4/8, 5/8, 6/8, 7/8 and 8/8How to determine the fractionsFractions greater than 5/8
Using the number line as a guide, we have the following:
Fractions greater = 6/8, 7/8 and 8/8
Fractions less than 3/8
Using the number line as a guide, we have the following:
Fractions less = 1/8 and 2/8
Fractions greater than 3/8
Using the number line as a guide, we have the following:
Fractions greater = 4/8, 5/8, 6/8, 7/8 and 8/8
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A farmer wants to fence a rectangular area of 288 square feet next to a river. Find the length and width of the rectangular which uses the least amount of fencing if no fencing is needed along the river. Assume the length of the fence runs parallel to the river
Kara earns 9.75 per hour plus 15.50 in tips each night. If she works for 5 2/5 hours four nights this week how much money will she earn
Answer: $272.60
Step-by-step explanation:
9.75x5.4= 52.65
52.65+15.50=68.15
68.15x4=272.6
In the coordinate plane, rhombus LMNO has vertices L(– 4,1), M(0,4), N(5,4), and O(1,1), and rhombus WXYZ has vertices W(– 9,– 1), X(– 1,– 7), Y(9,– 7), and Z(1,– 1). Select the sequence of transformations that can be applied to LMNO to show that it is similar to WXYZ.
On solving the provided question, we can say that Area of Rhombus is 24 cm²
What is Rhοmbus?A rhombus is an equal-sided quadrilateral in Euclidean plane geοmetry. The term "equilateral triangle" alsο refers to a quadrilateral whose sides are of the same length. A parallelοgram has a unique variation knοwn as a rhombus. In a rhombus, the οpposite sides and angles are parallel and equal.
A rhombus's diagοnal is split in half by a right angle, and each of its sides is the same length. Rhombic diamοnds and diamonds are other names for rhοmbuses. The length οf every side is the same. Diagοnals are equal in a rhοmbus. At a 90° angle, parallel lines split in half, 180 degrees is the sum of adjacent angles.
By distance formula
BD = [tex]\sqrt{(-2-4)^2 + (-1-5)^2}[/tex]
BD = [tex]\sqrt{36 + 36}[/tex]
BD = 6√2
similarly,
AC = 4√2
and, Area = 1/2 × (product of diagonals)
Area of Rhombus = 1/2 × 6√2 × 4√2 = 24 cm²
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Find the volume of the solid obtained by rotating about the x-axis the region enclosed by the curves y = 16 /(x^2 + 16) , y = 0, x = 0, and x = 4.
The answer is supposed to come out to pi + (pi^2)/2.
The volume of the solid obtained by rotating about the x-axis the region enclosed by the curves is 32π/5 cubic units.
In this problem, we are asked to find the volume of a solid obtained by rotating a region enclosed by curves about the x-axis. We will use integration to calculate the volume.
First, let's sketch the region and the solid we need to find the volume of.
The region is enclosed by the curves
=> y = 16 /(x² + 16), y = 0, x = 0, and x = 4.
When we rotate this region about the x-axis, we get a solid with a hole in the center, shaped like a donut.
To find the volume of this solid, we can use the method of cylindrical shells.
We start by taking a thin strip of the region, parallel to the y-axis, and of width dy. This strip has height y, and we rotate it about the x-axis to get a cylindrical shell of thickness dy and radius x.
The volume of this cylindrical shell is given by the formula V = 2πxy dy, where x is the distance from the y-axis to the edge of the shell.
To express x in terms of y, we can solve for x in the equation
y = 16 /(x² + 16).
y(x² + 16) = 16
x² = 16/y - 16
x = √(16/y - 16)
Now we can substitute x into the formula for V to get:
V = 2πx(16/(x² + 16)) dy
[tex]= 2\pi(16/y - 16)^{1/2}(16/y) dy \\\\= 32\pi(y - y^{3/2}) dy[/tex]
To find the total volume, we integrate this expression from y = 0 to y = 1 (since the maximum value of y is 16/16 = 1):
[tex]\int_0^1 32\pi(y - y{(3/2)}) dy = 32\pi/5[/tex]
Therefore, the volume of the solid obtained by rotating the region about the x-axis is 32π/5 cubic units.
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help me with my geometric homework goving 25 points plsss
Using the proportions of the side lengths of the pair of similar triangles, we have:
1. x = 35
2. x = 20; y = 23.3
3. x = 11
4. x = 9
5. x = 10
What are the Sides of Similar Triangles?Triangles that are similar to each other, will have side lengths that are proportional to each other.
Therefore, using proportions, we would have:
1. x/14 = 40/16
Cross multiply:
16x = 40 * 14
16x = 560
x = 560/16
x = 35
2. x/12 = 15/9
9x = 12 * 15
9x = 180
x = 20
y/14 = 15/9
9y = 210
y = 23.3
3. (x + 5)/24 = 36/54
Cross multiply:
54(x + 5) = 36 * 24
54x + 270 = 864
54x = 864 - 270
54x = 594
x = 11
4. 20/28 = 15/(2x + 3)
Cross multiply:
20(2x + 3) = 28 * 15
40x + 60 = 420
40x = 420 - 60
40x = 360
x = 9
5. 24/28 = x + 8 / 3x - 9
Cross multiply:
24(3x - 9) = 28(x + 8)
72x - 216 = 28x + 224
72x - 28x = 216 + 224
44x = 440
x = 10
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Samantha is trying to run for City Council, but she needs to have
500 total signatures on her petition in order to get on the ballot. She currently has 284 signatures and believes that her team of volunteers can get 28 signatures per day. Which of the following represents how many signatures Samantha expects to have in d days?
284 + 28d
500 - 28d
500 + 28d
284 - 28d
Answer:
284 + 28d
Step-by-step explanation:
Because she has 284 it is known
She plans to obtain 28/day
Therefor, it should be 248+28d