Ratios and Proportions

Solve the proportion:

• 4

• 8

• 14

• 10

Does the table represent a proportional relationship?

• Yes.

• No.

A class is attended by 16 boys and 32 girls. Write the ratio of GIRLS to BOYS as a fraction in SIMPLEST FORM.

There are 4 birds and 6 snakes. What is the ratio of birds to snakes?

• 6/4

• 4/6

• 1/3

• 10/16

Determine whether each pair of ratios forms a proportion

• Proportion

• Not a Proportion

Determine whether each pair of ratios forms a proportion

• Proportion

• Not a Proportion

Determine whether each pair of ratios forms a proportion

• Proportion

• Not a Proportion

Solve:

• 1

• 4

• 10

• 5

If I need 5 cups of flour to make 3 pies, how many pies can I make with 25 cups of flour?

• 30

• 15

• 25

• 5

You spend $40 on 5 pounds of concrete. What is the unit rate in dollars per pound?

• $8 per pound

• $5 per pound

• $35 per pound

• 0.125 pounds per dollar