Applying Ratio and Rate Reasoning to Solve Mathematical and Real-World Problems

A pet store has 8 cats, 12 dogs, and 3 rabbits. The ratio 12:23 compares...

• dogs to cats

• cats to dogs

• dogs to all animals

• cats to all animals

Which ratio is different from the others?

• 8:15

• 15 to 8

• 8 to 15

• 8/15

Solve for x:

• x = 189

• x = 21

• x = 49

• x = 70

A car travels 320 km using 32 litres of gas. What is the unit rate in km per litre?

• 10 km/L

• 0. 0.10 km/L

• 32 km/L

• 300 km/L

A recipe for 2 dozen cookies needs 3 cups of sugar. How much sugar is needed for 5 dozen cookies?

• 5 cups of sugar

• 6.6 cups of sugar

• 3.3 cups of sugar

• 7.5 cups of sugar

Which ratio is equal to 15:20?

• 3 to 4

• 18:25

• 21 to 28

• 24 to 30

There are 40 books on 5 shelves. What is the unit rate?

• 8 shelves per book

• 8 books per shelf

• 0.125 books per shelf

• None of the above

You can buy 6 cupcakes for $4.64. What is the unit price?

• $0.80 per cupcake

• $1.29 per cupcake

• $0.77 per cupcake

• $0.78 per cupcake

The ratio of tulips to lilies in a flower arrangement is 17:2. Find an equivalent ratio.

• 20:5

• 1 to 8.5

• 34 to 4

• 3 to 18

Solve for y:

• y = 24

• y = 30

• y = 42

• y = 36