Percent of Increase/Decrease and Simple Interest

Sam had 9 puppies. After giving some away, Sam had 4 puppies left. What is the percent change in the number of puppies? Round to nearest whole percent if necessary.

• 56% decrease

• 125% decrease

• 56% increase

• 125% increase

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CCSS.MATH.CONTENT.7.RP.A.3

The simple interest formula is I=Prt.  The P represents the principle.  The principle is ___________________.  

• the amount of money borrowed or deposited

• the percent interest for his year

• the amount taxed

• the amount the bank owes you for being a customer at their bank

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CCSS.MATH.CONTENT.7.RP.A.3

Linda started a savings account for her nephew with $3,000. The account earned 5% simple interest. How much interest did the account accumulate in 4 months?

• $50.00

• $600.00

• $60,000.00

• $4999.95

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CCSS.MATH.CONTENT.7.RP.A.3

Jerry borrowed $4000 for 5 years at 6% simple interest rate. What is the total he will pay back at the end of 5 years.

• $800

• $1,200

• $4,000

• $5,200

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CCSS.MATH.CONTENT.7.RP.A.3

What is 15% of 75?

• 11.25

• 11

• 12

• 500

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CCSS.MATH.CONTENT.7.RP.A.3

What percent of 60 is 12?

• 5

• 20

• 15

• 7.2

Tags

CCSS.MATH.CONTENT.7.RP.A.3

There are 110 students in the 7th grade. 90 students showed up to school on the last day. What percentage is this? Round to the nearest whole percent.

• 82

• 81

• 99

• 90

Tags

CCSS.MATH.CONTENT.7.RP.A.3

Miss Sylvie miscounted and thought she saw 33 children on the bus. When she counted again, she realizes there are actually only 30 students on the bus. What is her percent error?

• 10%

• 9%

• 90%

• 91%

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CCSS.MATH.CONTENT.7.RP.A.3

Eli's Electronics has a 60-inch television on sale this week for $798. The television is regularly priced for $1,050. By what percent did the price of the television decrease?

• 24% decrease

• 30% decrease

• 31.6% decrease

• 25% decrease

What is the percent of change? A student grew from 60 inches to 66 inches in height.

• 10% increase

• 10% decrease

• 6% increase

• 6% decrease