Percent Unit Review

Which problem matches the situation?

The number of people on the bus should be 20. However, 23 people were riding. What is the percent of error?

• $\frac{20}{23}=\frac{x}{100}$

• $23\div20$

• $\frac{23-20}{20}$

• $3\cdot100\div23$

Which problem would match the situation?

There are 12 boys and 18 girls in a class. What percent of the class are boys

• $\frac{12}{30}=\frac{x}{100}$

• $\frac{x}{100}=\frac{12}{18}$

• $\frac{6}{12}$

• $12\cdot100\div18$

Which problem matches the situation?

Jannelle borrows $7000 at a 3% interest rate for 3 years. How much interest will she owe?

• $7000\cdot3\cdot3$

• $7000=x\cdot.03\cdot3$

• $7000\cdot0.3\cdot3$

• $7000\cdot.03\cdot3$

Zander's salary is $2,500 per month. He spends 25% on his house payment. How much is his house payment?

Tags

CCSS.7.NS.A.2

CCSS.7.RP.A.2

CCSS.7.RP.A.3

The following are the favorite foods of 7th graders.

Pizza: 18

Chicken: 27

BBQ: 15

What percent of the 7th graders prefer pizza?

Tags

CCSS.7.RP.A.3

At the beginning of the school year there were 480 students. Now there are 504 students. What is the percent of change?

• increase

• decrease

• 5%

• 95.2%

• 4.76%

Tags

CCSS.7.RP.A.3

The doctor recommended that George consume 2000 calories instead of the 2,800 calories that he had been consuming. What is the percent of change for George's new eating habits?

• increase

• decrease

• 28.57%

• 40%

• 71.4%

Tags

CCSS.7.EE.B.3

CCSS.7.RP.A.2

CCSS.7.RP.A.3

Benny's gamestop bill came to $84.40. The sales tax rate is 8.5%. How much will Benny's total bill cost?

Tags

CCSS.7.EE.B.3

CCSS.7.RP.A.2

CCSS.7.RP.A.3

Danielle buys a vacuum for $108.00. After signing up for a red card, she gets a 5% discount. How much will she pay for the vacuum after her discount?

There were 652 students that attended the field trip. This was 80% of the Westminster High's school population. How many students attend Westminster High?

Tags

CCSS.7.EE.B.4

CCSS.7.RP.A.2

CCSS.7.RP.A.3