Question

Jack drove 39 1/2 miles he used 1 1/4 gallons of gasoline what is the unit rate for miles per gallon

Answer 1

31.6 miles per gallon

Explanation:

Given that:

Miles driven = 39 1/2 miles

Gallons of gasoline used = 1 1/4 gallons

The unit rate for miles per gallon :

Total miles driven / gallons of gasoline used

39 1/2 ÷ 1 1/4

79/2 ÷ 5/4

79 /2 * 4/5

(79 * 4) / 10

316 / 10

= 31.6 miles per gallon