Question

Fred is training for a cross-country race. At practice last week, he ran 6.25 miles in 1
1

4
hours. At that speed, how long would it take Fred to run 8.5 miles?
Write your answer as a whole number, decimal, fraction, or mixed number. Simplify any fractions.

Answer 1

Speed = 6.25 ÷ 1.25 = 5 miles/hour.
Time = 8.5 ÷ 5 = 1.7 hours = 1 7/10 hours.

So it would take 1 7/10 hours (1.7 hours).