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blondinia [14]
4 years ago
5

Use the values x = -4, 0, 5 to prove your solution to the equation 5 + x - 12 = x - 7. In your final answer, include all of your

calculations.
Mathematics
1 answer:
Mandarinka [93]4 years ago
6 0
X=-4                       x=0                x=5
5-4-12=-4-7          5+0-12=0-7   5+5-12=5-7
-11=-11                 -7=-7              -2=-2


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Ashley rode her bicycle 29.4 miles in 4 hours. She rode the same number of miles each hour. How many miles did ride her bike in
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Answer:

7.35 miles per hour

Step-by-step explanation:

Divide 29.4 by 4

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I have tree pizzas. The radius of one pizza is 4 inches. The radius of the second pizza is 8 inches. The radius of the last pizz
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At the grocery store last week, SuperSugarSweet candy bars were priced at 4 bars for 5$. This week, they are on sale at 5 bars f
AURORKA [14]

The percent change would be 36%

<h3>What is percent change?</h3>

Percent increase and percent decrease are measures of percent change, which is the extent to which a variable gains or loses intensity, magnitude, extent, or value.

Given:

4 candy bars = 5$

1 candy bar = 5/4

1 candy bar = 1.25$

Now,

5 candy bars = 4$

1 candy bar =4/5

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% change = (0.8-1.25) / 1.25 *100

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Learn more about percent change here:

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8 0
2 years ago
The sum of two numbers is 42. The smaller number is 6 less than the larger number. What are the numbers?
Neko [114]
The sum of two numbers is 42. The smaller number is 6 less than the larger number. What are the numbers? 24 and 18
8 0
3 years ago
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two times a number added to another number is 25 three times the first number minus the other number is 20
saul85 [17]

Set up a system of equations to model this problem:

2x+y=25 (two times a number added to another number is 25)

3x-y=20 (three times the first number minus the other number is 20)


The easiest way to solve this system of equations would be to solve for y in the second equation, and substitute that value in for the first.

3x-y=20

<em>*Subtract 3x from both sides*</em>

-y=20-3x

<em>*Divide both sides by -1*</em>

y=3x-20


2x+y=25

2x+3x-20=25

<em>*Combine likes terms*</em>

5x-20=25

<em>*Add 20 to both sides*</em>

5x=45

<em>*Divide both sides by 5*</em>

x=45


Now, plug x into the first equation, and solve for y.


2x+y=25

2(45)+y=25

y=-65


Hope this helps!!

4 0
3 years ago
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