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IM: 7.4.8: Percent Increase and Decrease with Equations (Practice)

Last updated 11 months ago

7 questions

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Question 1

1.

A pair of designer sneakers was purchased for $120. Since they were purchased, their price has increased by 15%. What is the new price?

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Question 2

2.

Elena’s aunt bought her a $150 savings bond when she was born. When Elena is 20 years old, the bond will have earned 105% in interest. How much will the bond be worth when Elena is 20 years old?

Question 3

3.

In a video game, Clare scored 50% more points than Tyler. If c is the number of points that Clare scored and t is the number of points that Tyler scored, which equations are correct? Select all that apply.

c=1.5t 

c=t+0.5 

c=t+0.5t 

c=t+50 

c=(1+0.5)t 

Draw a diagram to represent each situation:

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Question 4

4.

The number of miles driven this month was a 30% decrease of the number of miles driven last month.

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Question 5

5.

The amount of paper that the copy shop used this month was a 25% increase of the amount of paper they used last month.

Question 6

6.

Which decimal is the best estimate of the fraction \frac{29}{40}?

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Question 7

7.

Could 7.2 inches and 28 inches be the diameter and circumference of the same circle? Explain why or why not.