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 $49. If the shorts go on sale for 15% off, what is the new price?

What is 41.65?

100
solve 48/20 = 12/n
What is n =5?
100
What is 14% of 98?
What is 13.72?
100
Michelle works 8 hours for $140.00. If he works 19.5 hours, how much will she earn?
What is $341.25?
200
John travels 1686 miles in 3 days. How far did John travel per day?
What is 562 miles per day?
200

At the restaurant the bill is $45. If I leave a 15% tip, what is the total cost including tip?

What is $51.75?

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 83? Round to the nearest whole number
What is 42%?
200

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

What is 11,200 calories?

300

Which is the better buy? 16 books for $240 or 21 books for $336

What is 16 books for $240?

300
A computer is on sale for 20% off. If the sale price is $600, what is the original price of the computer?
What is $750
300
Does the pair of ratios form a proportion? 3/16 and 9/48
What is yes?
300
45 is 25% of what number?
What is 180?
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 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?
400

How do you know if a graph is proportional?

It is linear and crosses the origin

400
What percent of 80 is 2?
What is 2.5%?
400
The quarterback at Catoctin High School threw 86 passes during the football season. He completed 39 passes. What percent of the passes were completed?
What is 45%
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 $550, 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

What is the equation for constant of proportionality

What is K = y⁄x

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 120 words 100 seconds. How long would it take her to type 258 words?
What is 215 seconds?
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