Real-World Percent Applications

Real-World Percent Applications

• I can determine the percent error.

• ​I can determine percent increase and decrease.

• I can solve percent problems involving tax, tip, and discount.

Multiple Choice

I can determine the percent error.

John measured a line to be 1.7 inches long. If the actual length of the line is 1.8 inches, then what was the percent error of the measurement, to the nearest tenth of a percent?

• 5.4%

• 5.5%

• 5.6%

• 5.7%

Multiple Choice

I can determine the percent error.

Allison measured a line to be 19.4 inches long. If the actual length of the line is 19.1 inches, then what was the percent error of the measurement, to the nearest tenth of a percent?

• 1.4%

• 1.5%

• 1.6%

• 1.7%

Multiple Choice

​I can determine percent increase and decrease.

Arianna went shopping for a new video game because of a sale. The price on the tag was $32, but Arianna paid $20.80 before tax. Find the percent discount.

• 30%

• 35%

• 40%

• 45%

Multiple Choice

​I can determine percent increase and decrease.

Lauren went shopping for a new pair of pants because of a sale. The price on the tag was $20, but Lauren paid $13 before tax. Find the percent discount.

• 30%

• 35%

• 40%

• 45%

Multiple Choice

I can solve percent problems involving tax, tip, and discount.

Bob's Gift Shop sold 700 cards for Mother's Day. One salesman, Sebastian, sold 4% of the cards sold for Mother's Day. How many cards did Sebastian sell?

• 25

• 26

• 27

• 28

Multiple Choice

I can solve percent problems involving tax, tip, and discount.

4600 people attended a football game. If 4% of the people who attended were teenagers, how many teenagers attended the game?

• 182

• 183

• 184

• 185

Multiple Choice

I can solve percent problems involving tax, tip, and discount.

Bo went shopping for a new video game. Sales tax where he lives is 10%. What number should he multiply the price of the video game by to find the total plus tax in one step?

• 0.90

• 1.10

• 110

Multiple Choice

I can solve percent problems involving tax, tip, and discount.

Christian went shopping for a new pair of pants. Sales tax where he lives is 5.5%. The price of the pair of pants is $50. Find the total price including tax. Round to the nearest cent.

• $52.75

• $2.75

• $47.25