ok, but the inequality is not complete in the picture
[tex]\begin{gathered} \text{ 1 }\leq\text{ 1 - 2x} \\ \text{ 1 - 1 }\leq\text{ -2x} \\ \text{ 0 }\leq\text{ -2x} \\ \text{ 0/-2 }\ge\text{x} \\ \text{ 0 }\ge\text{ x} \end{gathered}[/tex]The Nutty Professor sells cashews for $7.00 per pound and Brazil nuts for $4.00 per pound. How much of each type should be used to make a 33 pound mixture that sells for $5.64 per pound? pounds of cashews pounds of Brazil nuts
Let's call X the number of pounds of cashews and Y the number of pounds of Brazil nuts.
Now, we want to make 33 pounds of the mixture, so:
X + Y = 33
Adittionally, every pound mixture will be sell for $5.64 per pound. It means that:
7X + 4Y = 5.64*33
7X + 4Y = 186.12
Because every pound of cashews cost $7 and every pound of Brazil nuts cost $4
Then, we can solve for X on the first equation and replace it on the second as:
[tex]\begin{gathered} X+Y=33 \\ X=33-Y \end{gathered}[/tex][tex]\begin{gathered} 7X+4Y=186.12 \\ 7(33-Y)+4Y=186.12 \end{gathered}[/tex]So, we can solve for Y as:
[tex]\begin{gathered} 7\cdot33-7\cdot Y+4Y=186.12 \\ 231-7Y+4Y=186.12 \\ 231-3Y=186.12 \\ -3Y=186.12-231 \\ -3Y=-44.88 \\ Y=\frac{-44.88}{-3} \\ Y=14.96 \end{gathered}[/tex]Now, we can calculate X as:
[tex]\begin{gathered} X=33-Y \\ X=33-14.96 \\ X=18.04 \end{gathered}[/tex]Therefore, we need to use 18.04 pounds of cashews and 14.96 pounds of Brazil nuts to make a 33 pounds mixture that sells for $5.64 per pound
Answer 18.04 pounds of cashews and 14.96 pounds of Brazil nuts
Question in picture will give brainlist
An equation is a mathematical statement that is made up of two expressions connected by an equal sign.
If 3x + 2y = 72 and 2y = 3z then 3x + 3z = 72.
This is due to the property of substitution.
Option E is the correct answer.
None of the above.
What is an equation?An equation is a mathematical statement that is made up of two expressions connected by an equal sign.
We have,
3x + 2y = 72 _____(1)
2y = 3z ______(2)
Substitute (2) in (1) we get,
3x + 3z = 72
We got 3x + 3x = 72 using the property of substitution.
Thus,
If 3x + 2y = 72 and 2y = 3z then 3x + 3z = 72.
This is due to the property of substitution.
Option E is the correct answer.
None of the above.
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Mr. Bowen used 2 gallons of paint on 1/3 of his fence. How many more gallons of
paint does he need to finish paining the entire fence?
Answer:
4
Step-by-step explanation:
→ Work out how much he needs in total
2 × 3 = 6
→ Minus how much he has used
6 - 2 = 4
helppppppppppppppppppp meeeeeeeeeeeeeeeeeeeee
Answer:
33
Step-by-step explanation:
3
Solve using Gaussian eliminationX+2y=7. And. Y=3x+2
Let's rewrite the system as:
[tex]\begin{cases}x+2y=7_{\text{ }}{(1)} \\ 3x-y={-2_{\text{ }}}(2)\end{cases}[/tex]Using elimination:
[tex]\begin{gathered} (1)+2(2) \\ x+6x+2y-2y=7-4 \\ 7x=3 \\ x=\frac{3}{7} \end{gathered}[/tex]Replace x into (2):
[tex]\begin{gathered} y=3(\frac{3}{7})+2 \\ y=\frac{23}{7} \end{gathered}[/tex]The picture I put in I understand girls more
Using long division:
What is 19.5 / 3 = decimal division
Answer:
6.5
Step-by-step explanation:
19.5 divided by 3 is 6.5
if you want to double check, you can multiply 3 by 6.5 and find it is 19.5
I need help on #5 Please help me on my hw
Given:
The given problem is:
[tex](x+3)^2\ne x^2+9[/tex]Using the identity:
[tex](a+b)^2=a^2+b^2+2ab[/tex]Now substitute a = x and b = 3 in this identity:
[tex]\begin{gathered} (x+3)^2=x^2+3^2+2\times x\times3 \\ =x^2+9+6x \end{gathered}[/tex]Hence , the correct solution to the problem is:
[tex](x+3)^2=x^2+6x+9[/tex]Pls help me, I’ll send you the pictures of the things you have to choose.
EXPLANATION
Since we have 3 1/2 slices of cake, and we need to distribute a half of slice by each friend, we need to divide 3 1/2 by 2, as follows:
[tex]\frac{(3\frac{1}{2})}{2}=\frac{7}{4}=1\frac{3}{4}[/tex]Therefore, since each friend gets a half slice of cake, we can affirm that each whole slice of cake can be divided into two halves.
Now, adding from half to half to obtain 3 1/2 slices of cake, give us:
1/2 + 1/2 + 1/2 + 1/2 + 1/2 + 1/2 + 1/2 = 7 slices
So, 3 1/2 slices of cake is a total of 7 halves.
Because each friend gets half of a slice of cake, we can affirm there are 7 friends.
Answer:
See below
Step-by-step explanation:
3 + one half slices each whole (3 of them ) can be cut into two halves
6 halves + 1 half = 7 halfves
if everyone gets a a half, there are 7 people
what is the y dash coordinate of the solution to the following system of equations
Solution
Step 1:
Write the systems of equations
[tex]\begin{gathered} 3x\text{ - 6y = 6 eq\lparen1\rparen} \\ -3x\text{ + 3y = 9 eq\lparen2\rparen} \end{gathered}[/tex]Step 2
To find the value of y, add both equations
[tex]\begin{gathered} -3x\text{ + 3y + 3x - 6y = 6 + 9} \\ -3y\text{ = 15} \\ y\text{ = }\frac{15}{-3} \\ y\text{ = -5} \end{gathered}[/tex]P(-9,-4) Q(-7,-1) whats is PQ
Step-by-step explanation:
I assume the question is about the distance between both points.
2 points in the coordinate grid create a right-angled triangle :
their direct connection (distance) is the Hypotenuse (the baseline, it is the side opposite of the 90° angle), and the x and y coordinate differences are the legs.
so, we can use Pythagoras to get the distance.
c² = a² + b²
c being the Hypotenuse, a and b being the legs.
so,
distance² = (-9 - -7)² + (-4 - -1)² = (-9 + 7)² + (-4 + 1)² =
= (-2)² + (-3)² = 4 + 9 = 13
distance = sqrt(13) = 3.605551275...
just in case, if you needed the line equation connecting these 2 points, I would assume the slope-intersect form
y = ax + b
"a" being the slope, "b" being the y-intersect (the y-value when x = 0).
the slope is always the ratio (y coordinate difference / x coordinate difference) when going from one point on the line to another.
using the 2 given points
x changes by +2 (from -9 to -7).
y charges by +3 (from -4 to -1).
the slope is
+3/+2 = 3/2
and our equation looks like
y = 3x/2 + b
now we use the coordinates of 1 point, e.g. (-7, -1), to get b
-1 = 3/2 × -7 + b = -21/2 + b
-1 + 21/2 = b
-2/2 + 21/2 = b
19/2 = b
our equation is then
y = 3x/2 + 19/2
or
y = (1/2)×(3x + 19)
Triangle ABC with vertices A(-9,-7) B(-6,-2) C(-3,-6) is translated 5 units to the right and 3 units up then the image is reflected on the x-axis. What are the coordinates of the final image?
Triangle ABC with vertices A(-9,-7) B(-6,-2) C(-3,-6) is translated 5 units to the right.
A(-9 + 5 ,-7) B(-6 + 5,-2) C(-3 + 5 ,-6) = A ( -4, -7 ) , B ( -1 , -2 ) C ( 2 , -6 )
3 units up: A ( -4, -7 + 3 ) , B ( -1 , -2+ 3 ) C ( 2 , -6+ 3 )
The coordinates of the final image is = A( -4, -4 ) B ( -1 , 1 ) C ( 2 , -3)
Jordan Will hike the trail shown at a rate of 5mi/h. write a linear equation to represent the distance Jordan still has to walk after X hours. what does the Y-intercept of the equation represent?
using linear equation
[tex]\begin{gathered} y=mx+b \\ \text{where} \\ m=\text{slope} \\ b=y-\text{intercept} \end{gathered}[/tex]Therefore,
[tex]\begin{gathered} x=\text{time in hours} \\ y=dis\tan ce \\ m=5 \end{gathered}[/tex][tex]y=5x+31[/tex]The y - intercept which is equals to 31 represents the distance he still has to walk .
(40 points)Graph the reflection of f(x) = -3(2) across the x-axis.
Step 1: From the given function, determine the reflected
function.
g(x) = (2)*
In the equation f(x) = -3(2), reflected about x - axis is : f(x) = 3.2
According to the question, given that
equation f(x) = -3(2)
the equation reflected x - axis is f(x) = 3.2
Therefore, Reflected about the x-axis in the equation f(x) = -3(2) is f(x) = 3.2
The graph of the parent function is either "moved," "resized," or "reflected" by a function transformation. The three primary categories of function transformations are as follows:
- Translation
- Dilation
- Reflection
The only one of these transformations, dilation, alters the size of the original shape; the other two, however, just affect the shape's location.
By comparing the original and converted graphs, you can quickly determine which one has changed because you can tell by by glancing at the graph that it has moved up 2 units, left 3 units, etc. However, it can be challenging to graph the function transformation when a graph is provided. The next few steps make it much simpler to graph transformations. Here, the function y = f(x) is changed to y = a f(b (x + c)) + d.
Step 1: Write down some of the original curve's defining coordinates. Thus, we are aware of the previous x and y coordinates.
Step 2: Simply put "b (x + c) = old x-coordinate" and solve for x to determine the new x-coordinate of each location.
Step 3: Simply apply all outside operations (of brackets) on the old y-coordinate to determine the new y-coordinate of each point. To determine each new y-coordinate, find ay + d, where 'y' is the old y-coordinate.
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your checking account is overdrawn by $120.22. you write a check for $80.25. what is the balance in your account???
The amount or balance left in the bank account is $39.97.
The amount of money held in a financial institution, such as a savings or checking account, at any particular time is known as the account balance. The net amount, which includes all debits and credits, is always the account balance.
The current balance in the bank account is $120.22.
The check was issued for $80.25.
Let x be the balance left in the account.
Then,
The balance left = Initial balance in the account - The amount for which the check was issued
x = Initial balance in the account - The amount for which the check was issued
x = $120.22 - $80.25
x = $39.97
The balance left in the bank account is $39.97.
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How much will a girl pay for a bag price at $15 if a discount of 10% is offered?
First, calculate how much is the discount equal to. Then, substract the discount from the original price to find the selling price.
Since the discount is 10%, find how much is 10% of $15 by multiplying 15 times 10/100:
[tex]15\times\frac{10}{100}=1.5[/tex]Then, 10% of 15 is equal to 1.5. Now, substract 1.5 from 15 to find the final price:
[tex]15-1.5=13.5[/tex]Therefore, the girl will pay $13.5. The answer is:
[tex]\text{ \$13.5}[/tex]Are 1 to 0.4 and 9 3.6 proportional?
The ratios 1 to 0.4 and 9 to 3.6 are proportional.
A ratio is a relationship between two objects that is expressed using numbers or amounts.
If the corresponding elements of two sequences of numbers, frequently experimental data, have a constant ratio, known as the coefficient of proportionality or proportionality constant, then the two sequences of numbers are proportional or directly proportional.
Consider the ratio 1 to 0.4 and 9 to 3.6,
Let,
x = 1 to 0.4 = 1 : 0.4
= 1/0.4
= 10/4
= 5/2
Let, y = 9 to 3.6
y = 9 : 3.6
y = 9/3.6
y = ( 9 × 10 ) / 36
y = 10/4
y = 5/2
Therefore,
x = y
1 : 0.4 = 9 : 36
Hence, the ratios 1 to 0.4 and 9 : 3.6 are proportional.
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PLEASE HELP QUICK!!!!!!!
What is the simplified expression for 2 power 2 multiplied by 2 power 3 over 2 power 4?
A) 2 power 0
B) 2 power 1
C) 2 power 2
D) 2 power 3
Answer:
[tex]2^1[/tex]
Step-by-step explanation:
Hello! So, to tackle this problem let's start off with writing out the formula as such! [tex]\frac{2^2 * 2^3}{2^4}[/tex]
To solve this, what we can do is start off by isolating [tex]\frac{2^2}{2^4}[/tex] (we can worry about [tex]2^3[/tex] later). To evaluate [tex]\frac{2^2}{2^4}[/tex], we're essentially just simplifying the fraction and reducing the exponents. In this case, we can reduce the power of 2 from both the numerator and denominator to get [tex]\frac{1}{2^2}[/tex] (this is obtained by dividing both numerator and denominator by [tex]2^2[/tex])
Once we have that, we are now essentially left with [tex]\frac{2^3}{2^2}[/tex]! From here, we can apply exponent rule, which allows us to get rid of the denominator entirely and now it becomes 2^(3-2). We can subtract the numbers to then simplify it into our answer, [tex]2^1[/tex] or in other words just 2!
A certain regular polygon is rotated 36° about its center, which carries the figure onto itself. Which regular polygon could it be?
Regular decagon.
The same decagon can be obtained by rotating the figure by 36 degrees, it is mapped onto itself every time it is rotated by 36 degrees.
What is regular decagon?A regular decagon is a polygon with 10 sides that are all equal.The interior angles of a regular decagon add up to 1440 degrees, and the exterior angles add up to 360 degrees. An irregular decagon is one that has unequal sides and angles.If we rotate the figure by 36 degrees, we will get the same decagon.Every time a regular decagon is rotated by 36 degrees, it is mapped onto itself.To learn more about decagon refer to :
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solve the following equation for x4x-3=21
Solving for x :
[tex]\begin{gathered} 4x-3=21 \\ \rightarrow4x=21+3\rightarrow4x=24 \\ \rightarrow x=\frac{24}{4} \\ \\ \Rightarrow x=6 \end{gathered}[/tex]Solve the system of functions, y2 = 3x and y = 7x.
We have the following system of functions:
[tex]\begin{gathered} y^2=3x \\ y=7x \end{gathered}[/tex]The second equation gives us an expression for y. We can replace y with these expression in the first equation:
[tex]\begin{gathered} y^2=(7x)^2=3x \\ 7^2\cdot x^2=3x \\ 49x^2=3x \end{gathered}[/tex]We can substract 3x from both sides:
[tex]\begin{gathered} 49x^2-3x=3x-3x \\ 49x^2-3x=0 \end{gathered}[/tex]The x is a factor of both terms on the left. Then we can rewrite this equation:
[tex]\begin{gathered} 49x^{2}-3x=0 \\ x(49x-3)=0 \end{gathered}[/tex]So we have that the product of two terms is equal to 0. This happens when any of them is equal to 0 so we have two equations:
[tex]\begin{gathered} x=0 \\ 49x-3=0 \end{gathered}[/tex]From the first we have x=0 and we can add 3 to both sides of the second equation:
[tex]\begin{gathered} 49x-3+3=0+3 \\ 49x=3 \end{gathered}[/tex]Then we divide both sides by 49:
[tex]\begin{gathered} \frac{49x}{49}=\frac{3}{49} \\ x=\frac{3}{49} \end{gathered}[/tex]So we have the two x-values of the solutions: x=0 and x=3/49. In order to find their respective y-values we can use any of the two original functions:
[tex]\begin{gathered} y=7x\rightarrow y=7\cdot0=0\rightarrow(x,y)=(0,0) \\ y=7x\rightarrow y=7\cdot\frac{3}{49}=\frac{21}{49}\rightarrow(x,y)=(\frac{3}{49},\frac{21}{49}) \end{gathered}[/tex]AnswerWe have two solutions: (0,0) and (3/49,21/49). We can round the values of the second solution:
[tex]\begin{gathered} \frac{3}{49}\cong0.06 \\ \frac{21}{49}\cong0.43 \end{gathered}[/tex]Then the solutions are (0,0) and (0.06,0.43). Then the answer is the fourth option.
I need help i dont understand
Answer:
2.50 + 1.50m = c
Step-by-step explanation:
Since he pays a fee of 2.50 when he enters the taxi were going to start with:
2.50 +
Now after its 1.50 for each mile so were going to do :
2.50 + 1.50m
Since we want to find the cost the equation will be:
2.50 + 1.50m = c
O POLYNOMIAL AND RATIONAL FUNCTIONSFinding zeros and their multiplicities given a polynomial functio.
From the function, we can conclude:
[tex]\begin{gathered} (x+6)^3 \\ x=-6_{\text{ }}Multiplicity_{\text{ }}3 \\ ---------- \\ (x-9)^2 \\ x=9_{\text{ }}Multiplicity_{\text{ }}2 \\ ----------- \\ x-6 \\ x=6_{\text{ }}Multiplicity_{\text{ }}1 \\ ----------- \\ (x+4)^3 \\ x=-4_{\text{ }}Multiplicity_{\text{ }}3 \end{gathered}[/tex]Answer:
Zero(s) of multiplicity one: 6
Zero(s) of multiplicity two: 9
Zero(s) of multiplicity three: -6, -4
ALGEBRA 1 HW!! PLEASE HELP I WILL GIVE BRAINLYEST (also please show how you got answer)
only giving brainlyest for correct answer
The slope of the line is 125.
The meaning of the slope in this context is the change in prices with respect to the change in sizes of the houses in square feet.
Using the slope intercept equation the line won't pass through (5, 650)
How to find the slope of a line?The graph is a relationship between the cost of a home and the size of the houses in square.
Therefore, the slope can be found as follows:
The slope is the change in y with respect to the change in x.
The slope is rise over run.
Therefore,
slope of the line(m) = y₂ - y₁ / x₂ - x₁
using (1, 125)(2, 250)
m = 250 - 125 / 2 - 1
slope = 125
The slope in this context is the change in price with respect to the change in sizes of the house.
Let's check if the line will pass through (5, 650) using slope intercept equation.
y = mx + b
where
m = slopeb = y-intercepty = 125x + 0
625 = 125(5)
Therefore, the lines won't pass through (5, 650) instead it will pass through (5, 625)
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Leander planted 100 acres with soybeans and he plans to increase his field size by 3% each year. What is the growth factor?
We are given that the rate of growth is:
[tex]0.03.[/tex]Now, recall that the growth factor is:
[tex]1+rate\text{ of growth.}[/tex]Therefore, the growth factor is:
[tex]1+0.03=1.03.[/tex]Answer: [tex]1.03[/tex]Two trains leave the same station, each 40 minutes apart. Train X leaves first at 9:45 am and heads west at a speed of 144 km/h. Train Y leaves at noon and travels directly east at a speed of 165 km/h. How far apart are these trains at 1:30 pm? Show your work.
Using the relation between velocity, distance and time, it is found that these trains are 1049 km apart at 1:30 pm.
What is the relation between velocity, distance and time?Velocity is given by the distance divided by the time, hence the following equation is built to model the relationship between these variables:
v = d/t.
In which:
v is the velocity.d is the distance.t is the time.For Train X, the time and the velocity are given as follows:
Time of t = 3.75 hours, as 1:30 pm is 3 hours and 45 minutes after 9:45 am, and 45 minutes = 45/60 = 0.75 of an hour.Velocity of v = 144.Hence the distance of train X from the station is:
dX = 144 x 3.75 = 540 km.
For Train Y, the time and the velocity are given as follows:
Time of t = 3.0.833 hours, as 1:30 pm is 3 hours and 5 minutes after the train left the station (40 minutes less than train X).Velocity of v = 165.Hence the distance of train Y from the station is:
dY = 165 x 3.0833 = 509 km.
They travel in opposite directions, hence we add the distances of each from the station to find their distances as follows:
540 km + 509 km = 1049 km.
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tanner writes a number that has 8 tens 2 ones. what number does tanner write
82
1) Since Tanner is going to write a number with 8 tens and 2 ones
Then we can write:
[tex]\begin{gathered} 8\text{ }\times10=80 \\ 2\times1=2 \\ 82 \end{gathered}[/tex]2) Tanner writes the number 82
Rajendra has 4 pounds of trail mix. He is putting them into bags that hold1 pounds each. Does he have enough trạil mix to completely fill 3 bags? Explain why orwhy not.
9. Dice A has ten sides, what is the probability a five of NOT rolling a one, a three or a five?
Answer:
Step-by-step explanation: Take awa thoese and it would be 70%
What is the % change from $250 to $303
Solution
- The question tells us to find the % change from $250 to $303.
- To calculate the percentage change, we use the formula given below:
[tex]\Delta\text{ \%}=\frac{\text{New}-\text{Old}}{\text{Old}}\times100\text{ \%}[/tex]- The New is $303 and the Old is $250. Thus, we can calculate the percentage change as follows:
[tex]\begin{gathered} \Delta\text{ \%}=\frac{\text{New}-\text{Old}}{\text{Old}}\times100\text{ \%} \\ \\ =\frac{303-250}{250}\times100\text{ \%} \\ \\ =0.212\times100\text{ \%} \\ \Delta\text{ \%}=21.2\text{ \%} \end{gathered}[/tex]Final Answer
The percentage change from $250 to $303 is 21.2%
