Solving Ratios with Algebra

A scale drawing of a billboard uses the scale 4 cm:9 ft. The length of the billboard in the drawing is 11 cm. How long is the actual billboard?

• 13 ft

• 20.75 ft

• 24.75 ft

• 22 ft

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

Two ratios that are equal are

• similar sides

• unit rates

• congruent

• proportional

A box of cereal cost $3.59 for 30 oz. How much is the unit rate per ounce? Round to the nearest cent.

• 11 cents

• 12 cents

• 13 cents

• 10 cents

Solve:

• 6

• 7

• -8

• -5

Solve:

• 4

• 6

• -2

• 5

Solve:

• -2

• 4

• 15

• 9

Solve:

• -9

• -28

• 9

• 4

Solve:

• 18

• 3

• 4

• 6

Solve:

• 3

• 12

• 5

• 3