Which is the most efficient first step to solve for x in the equation 3.7 x minus 18 = negative 4.3 x minus 3
First, you need to isolate the variable so you can solve the equation. You can move the number to the other side of the equal sign as long as you switch the sign (-/+) So your equation will look like this :
3.7x+4.3x-18=-3
Next, take the 18 and switch is so it will be with the 3:
3.7x+4.3x=-3+18
Now that like terms (variables with variables and regular numbers with regular numbers) you can solve:
8x=15
x=15/8
Hope this helps, and sorry if I did the work wrong but the directions are 100% right!
Answer:
c
Step-by-step explanation:
First, you need to isolate the variable so you can solve the equation. You can move the number to the other side of the equal sign as long as you switch the sign (-/+) So your equation will look like this :
3.7x+4.3x-18=-3
Next, take the 18 and switch is so it will be with the 3:
3.7x+4.3x=-3+18
Now that like terms (variables with variables and regular numbers with regular numbers) you can solve:
8x=15
x=15/8
Hope this helps, and sorry if I did the work wrong but the directions are 100% right! :)
What is the mean of the following set of numbers? 35, 40, 56, 52, 67
Answer:
The mean is 50
Step-by-step explanation:
To find the mean, add up all the numbers and divide by the number of numbers
(35+ 40+ 56+ 52+ 67)/5
250/5
50
Evaluate the expression when c= -4.
c² – 5c+2
Answer:
The answer is 38.
Step-by-step explanation:
You have to substitue c = -4 into the expression :
Let c = -4,
[tex] {( - 4)}^{2} - 5( - 4) + 2[/tex]
[tex] = 16 + 20 + 2[/tex]
[tex] = 38[/tex]
Find the volume of the cone rounded to the nearest tenth.
Answers: 1. 113.1 cm3
2. 1,224.1 cm3
3. 414.7 cm3
4. 760.3 cm3
PLEASEEEE HELPPPP!!!!
Plz answer this is trigonometry
Answer:
a = 47
b = 23.87
c = 90
d = 35.59
Step-by-step explanation:
I can only help this much. Not sure what the other two others below are asking
factorise x+y
-ax-ay
Answer:
Step-by-step explanation:
x+y-ax-ay
by grouping the like terms,
x-ax+y-ay
since x and y are common in all the terms,
=x(1-a) + y(1-a)
= (1-a) ( x+y)
hope this helps
plz mark it as brainliest!!!!!!!!!
The factorized expressions of (x + y)² is
x² + y² + 2xy
The factorized expressions of (-ax - ay)² is
a²x² + ay² + 2a²xy
What is an expression?An expression is a way of writing a statement with more than two variables or numbers with operations such as addition, subtraction, multiplication, and division.
Example: 2 + 3x + 4y = 7 is an expression.
We have,
Using middle-term factorization.
1)
(x + y)²
x² + y² + 2xy
2)
(-ax - ay)²
(-ax)² + (-ay)² + 2 x (-ax)(-ay)
a²x² + ay² + 2a²xy
Thus,
The factorized expressions are:
x² + y² + 2xy
a²x² + ay² + 2a²xy
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Monica sells lemonade over the summer and uses Conical paper cups to serve the lemonade. Each cup is 8 cm in diameter and 11 cm tall. She starts with a 10 gallon container (1 gallon is equivalent to 3085 cm)
Part A: Determine how many paper cups or needed to empty the entire 10 gallon cooler.
Part B: If the conical cups are solid and packages of 50. How many packages are needed to be bought?
Answer:
a) 167 cups
b) 4 packages
Step-by-step explanation:
Given:
Diameter, d = 8cm
Height, h = 11 cm
10 gallon container
Since 1 gallon = 3085cm, 10 gallons will be:
= 10 * 3085 = 30850 cm
a) Consider that the shape of the cup is a cone. To determine how many paper cups are needed to empty the entire 10 gallon cooler, let's first find the volume of the cone.
Formula for volume of a cone:
[tex] V = \frac{1}{3} \pi r^2 h[/tex]
We know radius, r = d/2 = 8/2 = 4cm
Substituting figures in the formula, we have:
[tex] V = \frac{1}{3} \pi 4^2*11[/tex]
V = 184.31 cm³
The number of paper cups are needed to empty the entire 10 gallon cooler would be:
[tex] = \frac{30850}{184.31} = 167.38 cups [/tex]
Approximately 167 cups
b) if the cups are sold in packages of 50, the number of packages to be bought will be:
[tex] = \frac{167}{50} = 3.34 [/tex]
Which is approximately 4 packages
{3x + 4y = 36
{y = -1/2x + 8
Answer:
y
=
3
4
x
−
9
Step-by-step explanation:
show that 3/5 id bigger than 5/9
Step-by-step explanation:
the common denominator for these two is 45, as you have to times 5 by 9 to get this you will have to times 3 by 9 aswell so that fraction would be 27/45.
as you have to times 9 by 5 to get 45 you will have to times 5 by 5 which is 25 so that fraction would be 25/45
3/5=27/45 5/9=25/45
27 is bigger than 25
The breadth of a rectangle is 3cm less than the length. If its area is 88cm2
, find
its breadth.
Answer:
Step-by-step explanation:
I don't say you have to mark my ans as brainliest but don't forget to thank me if it has helped you..
Analyze the diagram below and complete the instructions that follow.Find cos 45°
Answer: [tex]\frac{\sqrt{2} }{2}[/tex]
Step-by-step explanation: On the unit circle
Answer:
b
Step-by-step explanation:
simplify the expression :
11(3p+5x)+4x-x
1)33p+58x
2)14p+58x
3)33p+19x
4)14p+19x
Answer:
58 x + 33 p thus 1) is the Answer
Step-by-step explanation:
Simplify the following:
11 (3 p + 5 x) + 4 x - x
4 x - x = 3 x:
11 (3 p + 5 x) + 3 x
11 (3 p + 5 x) = 33 p + 55 x:
33 p + 55 x + 3 x
Grouping like terms, 33 p + 55 x + 3 x = (55 x + 3 x) + 33 p:
(55 x + 3 x) + 33 p
55 x + 3 x = 58 x:
Answer: 58 x + 33 p
Answer:
1) 33p+58x is the correct answer ☺️
Step-by-step explanation:
PLZ HELP IM STRUGGLING IM TIMED!!
Find the area
Answer:
AB / 13 = 1/2
AB = 6.5
area = 0.5 * base * height
=0.5 * 23 * 6.5
= 75 (rounded)
Answer:
b
Step-by-step explanation:
edge 2020
Your destination is 550 miles from home. If you leave home at 8:00 am and travel 60 mph
at a consistent speed, at approximately what time will you arrive at your destination?
Plz answer fast!! I need your help
Answer:
About 9:10 I multiplied 9 time 60 with the remaining 10 and got that
The surface area of a prism is 224 square inches. What is the surface area of a similar prism that has dimensions that are 1/4 the original dimensions?
Answer:
The surface area of the similar prism is 56 square inches
Step-by-step explanation:
Given surface area of prism, A = 224 square inches
The total surface area of a triangular prism = 2 x Area of triangle + ph
Area of triangle = ¹/₂bh
Where;
b is the base of the prism
h is the height of the prism
p is the perimeter of lateral surfaces
Area of prism involves the product of the dimensions, if the new dimensions is 1/4 the original dimensions;
Product of original dimensions = 224 square inches
1/4 of the product of original dimensions = 1/4 x 224 square inches
= 56 square inches
The surface area of the similar prism = 56 square inches
Thus, the surface area of the similar prism is 56 square inches
a/2 = b/5
Please just help...
Evaluated: a=2b/5 :):):):):):):)
2/5a=b and5 /Answer:
Step-by-step explanation:a=
2b
PLEASE HELP!!!! NEED ANSWER ASAP
Answer:
X=25
Step-by-step explanation:
Since these 2 angles are vertically opposite angles so they are equal. (rule)
75°=(4x-25°)
75° + 25° = 4x
100=4x
X=100/4 = 25
___________
Hope this helps...
The value of the square root of 13 is between
Answer:uhhhhhhhhhhhhhhhhhhh 14
Step-by-step explanation:
a man is standing on top of a cliff, 80 high, the angle of depression to a boat is 60° . calculate the distance of the boat from the base of the cliff.
Answer:
20 :3
Step-by-step explanation:
Da distance is 20
80 - 60 = 20 BOOM PEEPS
A 2-column table with 9 rows. The first column is labeled x with entries negative 5, negative 4, negative 3, negative 2, negative 1, 0, 1, 2, 3. The second column is labeled f of x with entries negative 6, negative 2, 0, 4, 4, 0, negative 2, negative 6, negative 10. Based on the table, which best predicts the end behavior of the graph of f(x)? As x → ∞, f(x) → ∞, and as x → –∞, f(x) → ∞. As x → ∞, f(x) → ∞, and as x → –∞, f(x) → –∞. As x → ∞, f(x) → –∞, and as x → –∞, f(x) → ∞. As x → ∞, f(x) → –∞, and as x → –∞, f(x) → –∞.
Answer:
As x → ∞, f(x) → –∞, and as x → –∞, f(x) → –∞Step-by-step explanation:
First, you need to graph all given points in the table, that way you will be able to determine the end behavior.
Remember, the end behavior of a function is the behavior of f(x) as x approaches to positive infinity and negative infinity.
So, based in the graph, we can say that as x approaches to positive infinity, f(x) approaches to negative infinity, and as x approaches to negative infinity, f(x) approaches to negative inifinity. In other words, in either case, f(x) always approaches to negative infinity.
Therefore, the right answer is the last choice.
Answer:
As x → ∞, f(x) → –∞, and as x → –∞, f(x) → –∞
Step-by-step explanation:
Just took the test!!!
Cylinders A and B are similar solids. The base of cylinder A has a circumference of 47 units. The base of cylinder B has an
area of 94 units.
The dimensions of cylinder A are multiplied by what factor to produce the corresponding dimensions of cylinder B?
Answer:
yes you are right it would be cylinder b
Step-by-step explanation:
determine the slope an y intercept :
y = 3/2x + 3
Answer:
Slope: -3/2 y intercept: 3
Step-by-step explanation:
Two less than four times a number is less than thirty. Which inequality can be used to find the solution?
Answer:
(4×n)-2<30
Step-by-step explanation:
4xn is 4 times a number
two less= -2
LESS THAN 30, is <
The inequality used to find the solution of the given statement is 4x - 2 < 30 to get the solution as x < 8.
What is Linear Inequalities?Linear inequalities are defined as those expressions which are connected by inequality signs like >, <, ≤, ≥ and ≠ and the value of the exponent of the variable is 1.
Given statement is that two less than four times a number is less than thirty.
Let the unknown number be x.
Four times a number is 4x.
Two less than four times a number is 4x - 2.
Two less than four times a number is less than thirty is 4x - 2 < 30.
4x - 2 < 30
Adding both sides with 2,
4x < 32
Dividing both sides by 4,
x < 8
Hence the required solution can be found by solving the inequality 4x - 2 < 30 and the solution is x < 8.
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Express -23 in the form bi where b is a real number TIME SENSITIVE
Answer:
A
Step-by-step explanation:
i stands for square root of negative 1. If you multiple i and square root of 23 you will end up with the original
The table shows the battery life of four different mobile phones:
Mobile Phone Battery Life
Phone: Battery Life (hours)
A: 20
B: 25
C: 10
D: 18
If 8.45% of the battery life of each mobile phone is used in a day by a typical user, for which mobile phone is 0.8 hour of battery life used in a day?
1. Phone A
2. Phone B
3. Phone C
4. Phone D
Answer:
phone C
Step-by-step explanation:
since, 8.45% of (×) 10
= 0.845
= 0.8
Answer:
probably phone C
Step-by-step explanation:
The awnser yo 4(x-2+y) using distributive property to create an equivalent expression??
Answer:
4x + 4y - 8
Step-by-step explanation:
Parenthesis
Exponents
Multiply
Divide
Add
Subtract
Tickets for a basketball game cost $20 for upper-level seats and $30 for lower-level seats. Tickets at the same venue
for an ice hockey game cost $15 for upper-level seats and $35 for lower-level seats. If tickets for all seats are sold,
the venue generates $7000 in revenue for a basketball game and $6500 for a hockey game. How many upper and
lower-level seats does the venue have?
Let x represent the number of upper-level seats.
Let y represent the number of lower-level seats.
20x + 30y = 7000
15x + 35y = 6500
The venue has
upper-level seats and lower-level seats.
Answer:
200 and 100
Step-by-step explanation:
Just did it:)
Answer:
The number of upper-level seats = 200
The number of lower-level seats = 100
Step-by-step explanation:
Given:
x = the number of upper-level seats.
y = the number of lower-level seats.
According to the question:
20x + 30y = 7000
15x + 35y = 6500
Multiply first equation by 3 and second by 4 then subtract them
[tex]3(20x + 30y) - 4(15x + 35y ) = 3(7000)-4(6500)\\60x+90y-60x-140y=-5000\\-50y=-5000\\y=100[/tex]
Plug y=100 in 20x + 30y = 7000.
[tex]20x + 30y = 7000\\20x + 30(100) = 7000\\20x+3000=7000\\20x=4000\\x=200[/tex]
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i dont know how to do this if someone could show me how and what the answer is
Answer:
It is A because due to the slope it is a parallelogram.
Step-by-step explanation:
Answer:
its a
Step-by-step explanation:
The local zoo welcomed a newborn African elephant that weighed 34 kg. It is expected that at adulthood, the newborn elephant will weigh approximately 34 times as much as its birth weight. What expression represents the expected adult weight of the newborn elephant? Explain why the Product of Powers Property makes mathematical sense.
Answer:
3/4-3/4=3/4+3/4
=3/8
Step-by-step explanation:
The expression that represents the weight of the elephant in adulthood is w = 34².
What is the product of power property?According to the Product of Powers Property, you can add the exponents and maintain the base when multiplying two exponents with the same base.
Given that, the weight of a newborn elephant baby is 34 kg.
The weight of the elephant will be 34 times as much as its birth weight in adulthood, therefore, the weight of the elephant in adulthood is:
w = 34×34
w = 34²
Hence, the product of power property makes mathematical sense, that a×a=a².
The expression that represents the weight of the elephant in adulthood is w = 34².
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what is the y-intercept of the equation y=-x?
Answer:
0,0
Step-by-step explanation:
