7 th Unit 6 Test Review: Proportional Reasoning

Which proportions have x = 9 as the missing value? 



 A survey of 60 middle school students showed that 40 planned to take a course in graphics during high school. If there are 240 eighth grade students in this school, which is the best prediction for the number of students who will take a graphics course?

Tony answered 16 out of 22 questions correctly on a Language Arts test. What percent of the questions did Tony answer correctly?

 A rectangular photograph measured 9.5 centimeters wide and 12 centimeters long. An enlargement was made that was 28.5 centimeters wide. How long was the enlargement?

 A mapmaker produces maps for all 50 states. He used ¼ inch to represent 20 miles. How many inches would be needed to represent 500 miles?

In a questionnaire of favorite game systems, 35 out of 80 people picked Wii U as their favorite system. If 400 people were surveyed, how many would pick Wii U as their favorite system too?

 Karan saw that bananas at the grocery store cost $1.50 for 4 bananas. Which proportion will give him the cost c for buying 10 bananas? (*note- write a proportion- list possible choices during review)



 Sam used a copy machine to enlarge a drawing to 125% of its original size. If the width of the original drawing was 24 centimeters, what is the width of the copy of the enlarged drawing?

6 inches is approximately 15 centimeters. About how many centimeters is 16 inches?

 Kevin’s family went to Ihop for breakfast. The bill for breakfast was $21. If Kevin’s father leaves a 15% tip, what was the cost of the breakfast including the tip?

 Alex bought a pair of pants that cost $ If the sales tax rate is 4%, what is the total bill?

 Jonah purchased a suit that usually sells for $350 and is marked “35%” off. What is the sales price?

 Mike bought a moped for $550. If the sales tax rate is 5%, how much is the sales tax?

 It has taken Nick 8 hours to get his art project 40% completed. If he continues to work at the same rate, what is the total number of hours it should take Nick to complete his art project?

 What is the amount of discount on a $68 pair of boots that are on sale for 10% off?

5 kilograms is equal to about 11 pounds. How many pounds is 45 kilograms?

100 meters is approximately 110 yards. About how many yards is 40 meters?

12 out of 32 students in Mr. Weakland’s PE class are girls. What percent of the students in Mr. Weakland’s class are boys?