Rational and Proportions

Will spent $3.75 for 3 pounds of granola. What is his unit rate in dollars per pound?

• $1.25 per pound

• $1 per pound

• $2 per pound

• $1.50 per pound

There are 4 milk chocolates to every 2 dark in a box of chocolates. There are 34 dark chocolates in the box. How many milk chocolates are in the box?

• 68

• 86

• 17

• 34

To make plant fertilizer, you mix 12 ounces of Lime with every 10 ounces of water. If you use 80 ounces of water, how much lime do you need?

• 96 ounces

• 80 ounces

• 1.5 ounces

• 66.67 ounces

Last week, Ida bought 8 cartons of raspberries for $7. How many cartons of raspberries can Ida buy this week if she has $21?

• 24 cartons

• 2.67 cartons

• 20 cartons

• 19 cartons

Solve the proportion.

• k=5

• k=3.3333333

• k=60

• k=90

Do the ratios form a proportion?

• Yes, they form a proportion.

• No, they do not form a proportion.

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

• 6/5

• 50/75

• 25/30

• 12/10

A cake recipe calls for 1.5 cups of milk and 3 cups of flour. Seth made a mistake and used 5 cups of flour. How many cups of milk should he use to keep the proportions correct?

• 2.5 cups milk

• 1.75 cups milk

• 2 cups flour

• 2.25 cups milk

Solve.

• 4

• 1

• 16

• 2

Solve the proportion:

• 3

• 4

• 9

• 6