That's Very Interesting . . .
Percent Proportions
Solving Proportions
Percent Change/Error
Proportion Word Problems
100

If Jaron borrows $225 from Michael and agrees to pay him back in one year with 2.5% interest, how much interest will Jaron pay? Round to the nearest cent, if needed.

What is $5.63?

100

A pair of shorts cost $48.99. If the shorts go on sale for 15% off, what is the new price?

What is $41.64?

100

solve 48/20 = 12/n

What is n =5?

100

Yesterday, the high temperature was 80 degrees. Today. the high temperature will be 52 degrees. What is the percent change of the temperature?

What is 35% decrease?

100

Michelle works 8 hours for $140.00. If she works 19.5 hours, how much will she earn?

What is $341.25?

200

You want to buy a car and you borrow $5,000 from a bank at a rate of 7%. How much interest will you pay if you pay the loan back in 5 years? Round to the nearest cent, if needed.

What is $1,750?

200

At the restaurant the bill is $45.50. If I leave a 15% tip, what is the total cost including tip? Round to the nearest cent, if needed.

What is $52.33?

200

Solve:

x/6 = 12/15

What is 4.8?

200

Mark thought he made a 95 on his math test, but he actually made an 89. What was the percent of error in his estimate? Round to the nearest whole percent.

What is 6%?

200

Three slices of cheese cake have 4,200 calories. How many calories will 8 slices of the same cheese cake have?

What is 11,200 calories?

300

If you deposit $500 in a bank that pays a rate of 1.5%, how much interest will you earn after 7 years? Round to the nearest cent, if needed.

What is $52.50?

300

Jessie earns 18% commission on all computers that she sells. If she sells $10,000 worth of computers, how much money does she make in commission?

What is $1,800?

300

Are 3/16 and 9/48 equivalent ratios?

What is yes?

300

A store bought a table for $125 and sold it for $200. What was the percent change in the price of the table? Round to the nearest whole percent.

Bonus points if you can tell what the percent change is called.

What is 60%?

What is a markup?

300

Tara got 88% of the questions correct on her test. If there were 50 questions on the test, how many did she get right?

What is 44?

400

If you deposited $10,000 in an account that pays 3.75% interest, how much interest will you earn on your money in 8 years?

What is $3,000?

400

A computer is originally priced for $750. The store has marked it down by 20%. If the sales tax is 8.25%, how much will the computer cost after the markdown and the sales tax? Round to the nearest cent, if needed.

What is $649.50?

400

Solve the proportion:

x/180 = 85/100

What is 153?

400

LaBron's playing time averaged 32 minutes per game last season. This season his playing time is averaging 41 minutes per game. What is the percent change of his playing time? Round to the nearest whole percent.

What is 28%?

400

The quarterback at Brainerd High School threw 86 passes during the football season. He completed 39 passes. What percent of the passes were completed? Round to the nearest whole number, if needed.

What is 45%

500

When you buy a house, you get a loan (called a mortgage). If you got a mortgage for $149,500, and the bank's rate is 6.25%, how much interest will you pay if you take 30 years to pay the loan (mortgage) back? Round to the nearest cent, if needed.

What is $280,312.50?

500

The value of a new iphone is $550, but after a year or two of use the value drops by 45%. What is the change in value of the iphone?

What is $247.50?

500

Solve the proportion:

1/2/2/3 = 2/w

What is 8/3 or 2 2/3?

500

Marquisha earned a 79 on her first math test. On her most recent test, she earned an 85. What was the percent change in her scores on the first test and on the latest test? Round to the nearest whole percent.

What is 8%?

500

A typist can type 120 words 100 seconds. How long would it take her to type 258 words?

What is 215 seconds?

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