Power DOL #5 Review

A group of 300 students were asked to choose their favorite type of food from the choices of pizza, burgers, and salad. The results are shown in the graph. Based on the graph, how many students would be expected to choose pizza as their favorite type of food?

• 15

• 24

• 11

• 90

1. There are 80 students at a school talent show. The ratio of the number of students performing dance acts to the number of students performing singing acts is 5:3. How many students at the school talent show are performing singing acts?

• 80

• 50

• 30

• 3

1. In a class of 50 students, the ratio of students who like mathematics to those who like science is 2:3. How many students like science?

• 20

• 30

• 10

• 40

Which situation can be represented by the equation y=3.2x?

• The cost of buying x items at a store, where each item costs

• 1. The total distance traveled, y, in miles, given the speed, x, in miles per hour, over a certain time period

• 1. The amount of money earned, y, in dollars, for x hours of work at a rate of per hour.

• 1. The volume, y, in cubic feet, of a rectangular box with length x feet, width 11 foot, and height 3.2 feet.

In a survey, 20% of the people surveyed preferred cats over dogs. If 80 people were surveyed, how many preferred cats?

• 16

• 20

• 64

• 40

If the ratio of boys to girls in a class is 3:4, and there are 21 boys, how many girls are there?

• 28

• 25

• 18

• 24

• A ratio is a multiplicative comparison of two or more quantities.

• A ratio is a additive comparison of two or more quantities.

Which situation can be represented by the equation y=0.02x?

• 1. The cost of buying x items at a store, where each item costs $2.

• 1. The total distance traveled, y, in miles, given the speed, x, in miles per hour, over a certain time period of 50 minutes.

• 1. The amount of money earned, y, in dollars, for x hours of work at a rate of per hour.

• 1. The volume, y, in cubic feet, of a rectangular box with length x feet, width 11 foot, and height 0.02 feet.

In a bakery, 2 cups of flour are used to make 24 muffins. How much flower does it take to make 12 muffins?

• 4 cups

• 1 cup

• 6 cups

• 3 cups

In a bakery, 2 cups of flour are used to make 24 muffins. How much flower does it take to make 36 muffins?

• 6 cups

• 10 cups

• 9 cups

• 3 cups