RATIOS AND UNIT RATES
PERCENT PROPORTIONS
SOLVING PROPORTIONS
% OF A NUMBER
PROPORTION WORD PROBLEMS
100
write a ratio three ways for 11 pencils to 14 pens
What is 11/14 11:14 11 to 14
100

A pair of shorts cost $50. If the shorts go on sale for 10% off, how much will you save?

What is $5?

100
solve 48/20 = 12/n
What is n =5?
100

What is 14% of 100?

What is 14?

100

Michelle works 8 hours for $80. If she works 1 hours, how much will she earn?

What is $10?

200

John travels 36 miles in 3 days. How far did John travel per day?

What is 12 miles per day?

200

At the restaurant the bill is $100. If I leave a 15% tip, what is the total cost including tip?

What is $115?

200
Write a proportion and then solve: x is to 6 as 12 is to 15.
x/6=12/15 x = 4.8
200

35 is what percent of 50? Round to the nearest whole number

What is 70%?

200

Three slices of cheese cake have 150 calories. How many calories will 6 slices of the same cheese cake?

What is 300 calories?

300

Which is the better buy? 4 books for $25 or 5 books for $30

What is 35 books for $30?

300

A computer is on sale for 30% off. If the sale price is $600, how much will I save?

What is $180

300
Does the pair of ratios form a proportion? 3/16 and 9/48
What is yes?
300

4 is 25% of what number?

What is 16?

300

Tara got 88% of the questions correct on her test. She answered 44 problems correctly. How many questions were on the test?

What is 50?

400
There are 18 red cars to 6 white cars in the parking lot. Write a ratio as a fraction in simplest form of the number of red cars to the total number of cars in the parking lot
What is 3/4?
400

Jessie earns 10% commission on all computers that she sells. If she sells $1000 worth of computers, how much money does she make in commission?

What is $100?

400
Solve the proportion for y: b/y = 1/2
What is 2b?
400

What percent of 20 is 2?

What is 10%?

400

The quarterback at Catoctin High School threw 80 passes during the football season. He completed 40 passes. What percent of the passes were completed?

What is 50%

500
John ate 15 hotdogs, Mark ate 12 hotdogs and Sam ate 13 hotdogs. Write a ratio as a fraction in simplest form for the number of hotdogs Mark ate to the total number of hotdogs eaten
What is 3/10?
500

The value of a new iphone is $500, but after a year or two of use the value drops to $300. What is the percent change in the value of an iPhone?

What is 45.5%?

500
Solve the proportion for x: z/y = x/4
What is 4z/y?
500
Maureen earned 22 out of 25 points on her last math test. What percent of 25 points is 22 points?
What is 88%?
500

A typist can type 2 words in 1 second. How long would it take her to type 44 words?

What is 22 seconds?

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