Change Forms
Basic Percent Problems
Percents with change
Solving Proportion
Unit Conversions/Rates
100

.5 is what in percent form?

50%
100

22 out of 126 students stayed inside during recess.  What percent of the students stayed inside?

17.5%

100

The bill at a restaurant was $68.00 and Allie had a 20% off coupon. How much did Allie pay after the discount was applied?

$54.40

100

20/53 = x/15

5.7

100

Convert 50 meters to Kilometers

0.05 km

200

5% is what as a decimal?

0.05

200

15% of Mrs. Bertalan's class did not do their homework. If Mrs. Bertalan has 140 students, how many students did not do their homework? 

21 students

200

A politician's support increases from 30% to 59%.  Determine the absolute and relative change in this situation. 

Absolute Change: The politician's support has increased by 29 percentage points

Relative Change: The politician's support has increased by 96.7%

200

140/x = 25/43

240.8

200

Convert 100 feet per second to miles per hour. 

68.2 miles per hour

300

What is 78% as a simplified fraction

39/50

300

2 out of 50 marbles are striped. What percent are striped?

4%

300

A company wants to decrease their energy use by 10%.  If their electric bill is currently $2,100 a month, what will their bill be if they are successful?

$1890
300

A recipe calls for 3 eggs, 1 cup of flour, and 2 tablespoons of butter.  How much flour would you nee if you use 6 eggs.

2 cups

300

A car is driving at 80 miles per hour.  How far, in feet, does it travel in 3 seconds?

352 feet

400

14/70  is what as a percent?

20%

400

4 out of 8 seventh graders chose pizza at lunch. What percent of seventh graders chose pizza?

50%

400

The label on a bag of dog food says it should weight 40 pounds, but the true weight is only 37 points. Find the absolute and relative error. 

Absolute Error: 3 pounds

Relative Error: 7.5%
400

An 8ft length of 4 inch wide crown molding costs $15.  How much will it cost to buy 104 ft of crown molding?

$195
400

Over the last 5 years, a corporation's debt grew by $2,818,555.  Calculate the average rate at which the company's debt was growing in cents per minute.

107.25 center per minute

500

24% is what as a simplified fraction?

6/25

500

Mrs. Strain has 16 boys in her 4th period class which is 40% of her class. How many students does Mrs. Strain have total in her 4th period?

40 total students

500

A company's sales increased 8% this year, to $9837.  What were their sales last year?

$9108.33

500

A+ Landscaping Company is laying an outdoor patio using rose and brown colored pavers.  The pavers are laid according to a patter such that for every 21 rose pavers used, 4 brown pavers are used.  If a total of 475 pavers are used, how many of them are brown in color?

76 brown pavers

500

A store is selling lemons at $0.37 each.  Each lemon yields about 2 tablespoons of juice.  How much will it cost to buy enough lemons to make two 9-inch lemon pies, each requiring half a cup of lemon juice?

$2.96

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