Name:    Try It Out -- Chapter 2, Lesson 5

Multiple Choice
Identify the letter of the choice that best completes the statement or answers the question.

1.

Select the term to complete the sentence.

A comparison of two quantities measured in different units is called a _____.
 a. ratio b. rate c. scale factor d. proportion

2.

Select the unit rate.
 a. 100m / 10s b. 160 L/ 250 people c. 45 km/h

3.

Calculate the unit rate.

935 km in 11.5 hours
 a. 81.3 b. 81.3 km/h c. 0.01 km/h

4.

Calculate the unit cost:
5 jars of juice for \$14.45
 a. \$2.89/jar b. \$2.89 c. \$0.35/jar

5.

Calculate the unit cost.
\$21.99 for a 454g bag of frozen cooked scallops
 a. 0.04844 b. \$0.05/g c. \$20.65/g

6.

Calculate the hourly rate.

Robert worked 37.5 hours and earned \$346.88
 a. \$9.25 b. \$0.11/h c. \$9.25/h

7.

Justin drove his van 725 km in 8 hours.  At this rate, how far will Justin drive in 9.5 hours?
(round to the nearest km)
 a. 91 km/h b. 860 km c. 1088 km

8.

What is the better price:
2 containers of yogurt for 89 cents or 9 containers for \$4.30?
 a. 2 containers of yogurt for 89 cents b. 9 containers for \$4.30

9.

Two different types of tickets are selling for the next big concert.  Each hour, one hundred \$55 tickets are sold for seats on the floor.  Every two hours, one hundred fifty \$40 tickets are sold for seats in the stands.  Determine the rate of sale for each type of ticket being sold.
 a. floor tickets: \$55/hstand tickets: \$40/h b. floor tickets: 100 tickets/hstand tickets: \$75 tickets/h

10.

For the problem in Question 9, suppose there are only 375 stand tickets left to sell.  How long will it take for these tickets to sell out?
 a. 3.75 h b. 5 h c. 2.1 h