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**Percent Proportion & Equation**

Eleanor M. Savko Percent Proportion & Equation Percent of Change Percent of Error 4/16/2017 Tax and Discounts Simple Interest 5 pt 5 pt 5 pt 5 pt 5 pt 10 pt 10 pt 10 pt 10 pt 10 pt 15 pt 15 pt 15 pt 15 pt 15 pt 20 pt 20 pt 20 pt 20 pt 20 pt 25 pt 25 pt 25 pt 25 pt 25 pt

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What percent of $90 is $9?

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10%

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What number is 20% of 35?

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7

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62 is 90.5% of what number?

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68.5

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**Of the 60 books on a bookshelf, 24 are nonfiction**

Of the 60 books on a bookshelf, 24 are nonfiction. What percent of the books are nonfiction?

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40%

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**Roman has 2 red pencils in his backpack**

Roman has 2 red pencils in his backpack. If this is 25% of the total number of pencils, how many pencils are in his backpack?

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8 pencils

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15 yards to 18 yards

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20%

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132 days to days

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5%

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Last school year the enrollment of Genoa Middle School was 465 students. This year the enrollment is 525.

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12.9%

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**Tara purchased a DVD player for $150**

Tara purchased a DVD player for $150. Six months later, the same DVD player was selling for $120. What was the percent of decrease?

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20%

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**In one year, Braden’s height went from 60 inches to 63 inches**

In one year, Braden’s height went from 60 inches to 63 inches. What was the percent of increase in Braden’s height?

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5%

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**Estimated: 13.5 lbs Actual: 15.6 lbs**

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13.5%

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Estimate: 75 Actual: 126

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40.5%

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**George estimated that there were 315 students at a basketball game**

George estimated that there were 315 students at a basketball game. The actual number of students at the game was What was the percent of error of his estimate?

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10%

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In an experiment, a chemist estimated the amount of liquid in a beaker to be 52 milliliters. The actual amount of liquid in the beaker was 50 milliliters. What was the percent error?

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4%

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**Dane estimated that there were 420 people at a concert with him**

Dane estimated that there were 420 people at a concert with him. The actual number of people at the concert was What was the percent error of Dane’s estimate?

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12%

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**A haircut costs $20. Sales tax is 4. 75%**

A haircut costs $20. Sales tax is 4.75%. How much will the haircut cost all together?

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$20.95

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**American Eagle pays $56 for their brown parka**

American Eagle pays $56 for their brown parka. They add 25% to the price & sell it to the customers. Find the selling price.

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$70

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**A pair of in-line skates is on sale for $98**

A pair of in-line skates is on sale for $98. If this price is discounted 9% , what is the final price of the skates?

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$89.18

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**Joe is buying a t-shirt for $12. 99, a pair of shoes for $59**

Joe is buying a t-shirt for $12.99, a pair of shoes for $59.95, and sunglasses for $ If he has a coupon for 15% off his total purchase and sales tax is 6%, how much did he pay? Round your answer to the nearest cent.

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$77.88

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**Sara earns a 15% commission on furniture she sells**

Sara earns a 15% commission on furniture she sells. How much commision would she earn if she sells a dining room set for $850, a chair for $400, and a rug for $75?

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$ – commision

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**How much simple interest will they pay**

How much simple interest will they pay? Principal - $300 Interest Rate – 4% Term – 6 months

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$6

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Victoria deposited $2500 into a savings account that pays her simple interest. The interest rate is 3%. How much interest will Victoria earn in 2 years? And what will her balance be?

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Interest: $150 Balance: $2650

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**Tina took out a 6 year loan for $18000 to buy a new car**

Tina took out a 6 year loan for $18000 to buy a new car. She has to pay 2% simple interest on the loan. How much will Tina have paid in all after the 6 years?

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$20,160

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**Leon borrowed $75 at an interest rate of 12. 5%**

Leon borrowed $75 at an interest rate of 12.5%. How much will Leon have to pay after 9 months if he makes no payments?

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$82.03

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**Pablo has $4200 to invest for college**

Pablo has $4200 to invest for college. If Pablo invests $4200 for 3 years and earns $630, what is the simple interest rate?

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5%

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