Review Ratios and Proportions

The price of peaches at Ethan's supermarket can be determined by the equation p=0.28n, where P is the price and n is the number of pounds of peaches. What is the constant of proportionality?

• $0.56/2 pounds

• $1/pound

• $0.28/pound

• $1.50/3 pounds

• There is no constant of proportionality because the price of peaches is not directly proportional to the weight of the peaches.

Which table shows a proportional relationship between x and y?

• A

• B

• C

• D

The graph shows the relationship between the cost of peaches and plums, and the number of pounds purchased. Which of the following statements are true? (Select all the true statements)

• The unit cost of peaches is greater than the unit cost of plums.

• The unit cost of plums is greater than the unit cost of peaches.

• The cost of peaches and plums is not proportional to the purchased.

• The cost of peaches and plums is proportional to the weight purchased.

Which ratio below is proportional to the ratio   5/6?

• 6/5

• 50/75

• 25/30

• 12/10

There were 5 ice cream cones for every 3 brownies sold at the ice cream shop. If there were 24 brownies sold, how many ice cream cones were sold?

• 8

• 15

• 40

• 29

Simplify the ratio of

20 to 25

• 1 to 5

• 2 to 5

• 3 to 5

• 4 to 5

A 12-ounce bottle of shampoo lasts Enrique 16 weeks. How long would you expect an 18-ounce bottle of the same brand to last him?

• 24 Weeks

• 24-ounce bottle

• 10.6 Weeks

• 10.6-ounce bottle

About 13 out of 20 homes have a personal computer. On a street with 60 homes, how many computers would you expect to have?

• 39 Computers

• 4.3 Homes

• 39 Homes

• 4.3 Computers

Which ratio is proportional to the ratio   1/5?

• 2/5

• 2/10

• 5/1

• 15/20