2.8 Solve Percent Problems Lesson

2.8 Solve Percent Problems Lesson

Multiple Choice

True or False: A proportion is an equation that shows that two ratios are equivalent.

• True

• False

Multiple Choice

True or False: In a percent proportion one ratio compares a part to the whole. The other ratio is an equivalent percent written as a fraction with a denominator of 10.

• True

• False

Use Percent proportion to Solve for "Of What Number"

Multiple Choice

9 is 36% of what number?

• 4

• 25

• 2.5

• .4

Multiple Choice

7 is 70% of what number?

• 10

• 70

• 7

• 100

Multiple Choice

7 is 35% of what number?

• 5

• 50

• 20

• 10

Multiple Choice

In the first year of ownership, a new car can lose 20% of its value. If a car lost $4,200 of value in the first year, how much did the car originally cost?

• 4,200

• 210

• 21,000

• 2,100

• Calculate the discount

• ​Subtract from the original price

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Finding Sale Price

Multiple Choice

Chloe wants to buy Air Forces originally priced at $100. Finsh line has them 15% off of the original price. What is the sale price?

• $15

• $85

• $90

• $115

• Calculate the tip

• Calculate the sales tax

• Add the bill, tip and tax​

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Total Meal Cost

Multiple Choice

Mrs. Reid is taking her kids to Buffalo Wild. The bill was $50. The sales tax is 5%. The waitress was really good so she wanted to leave a 20% tip. What was the total cost she paid

• $12.50

• $37.50

• $62.50

• $65.00