Chapter 4 Review

What percent of 25 is 6?

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24%

What number is 48% of 75?

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36

70% of what number is 35?

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50

24 is what percent of 50?

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48

36 is 18% of what number?

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200

What is the percent of increase from 36 to 50. (Round to nearest whole number)

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39%

What is the percent of decrease from 98 to 80. (Round to the nearest tenth)

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18.4%

Lily took a survey of 80 students in 7th grade. She found that 80% of the 7th graders like country music. How many 7th graders like country music?

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64 students

On the first visit to the veterinarian’s office, Elijah’s puppy weighed 19 ounces. On the second visit, the puppy had gained 9 ounces now weighing 29 ounces. What is the percent increase since the first visit in the puppy’s weight rounded to the nearest percent?

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53%

Aiden estimates that the length of a piece of rope is 7.2 inches. If its actual length is 6.5 inches, what is the percent error of Aiden’s estimate?

• 7%

• 9.72%

• 10.77%

• 58%