Expressing ratio relationships as unit rates using rate language

If a car travels 42 miles by consuming 3 gallons of gasoline, how many miles per gallon does the car travel?

• 14 miles per gallon

• 12 miles per gallon

• 15 miles per gallon

• 18 miles per gallon

Choose the option that accurately defines a unit rate.

• A unit rate is a rate with a denominator of 1 unit.

• A unit rate is a rate with a denominator of 10 units.

A ____ is a ratio that compares two quantities with different units.

Alex can assemble 32 toy cars in 8 hours. How many toy cars can he assemble per hour?

• 3 toy cars per hour

• 4 toy cars per hour

• 5 toy cars per hour

• 6 toy cars per hour