Question

Natalie's car used 7 gallons of gas to drive 161 miles. At what rate does her car use gas in gallons per mile? Express your answer in simplest form.

Answer 1

7 gallons / 161 miles = x gallons / 1 mile

7 / 161 = x / 1

7 / 7 ∙ 23 = x

1 / 23 = x

x = 1 / 23 gallons / mile

Answer 2

Note that your solution doesn't give the right units. 1/23 is 1 mile/23 gallons or 0.0435 miles/gallon. You want ? gallons/mile which is 23/1 or 23 miles/gallon.

Answer 3

David drove 366 miles in 10 hours. On average, how fast did he drive in miles per hour? Express your answer in simplest form.

Answer 4

Natalie's car used 7 gallons of gas to drive 161 miles. At what rate does her car use gas in gallons per mile? Express your answer in simplest form.

Answer 5

Lily's car used 6 gallons of gas to drive 237 miles. At what rate does her car use gas in miles per gallon? Express your answer in simplest form.

Answer 6

Aaron earned $74 at his job when he worked for 4 hours. What was his hourly pay rate in dollars per hour? Express your answer in simplest form.