Question

The winner of a 1000mile race drove his car to victory at a rate of 126.3702 mph. What was his time (to the nearest thousandth of an hour)?

Answer 1

`7.913\ hour`

Explanation:

we know that

Using proportion

`(126.3702)/(1)(miles)/(hour)=(1,000)/(x)(miles)/(hours)\\ \\x=1,000/126.3702\\ \\x=7.913\ hour`

Answer 2

time = distance / speed

time = (1000 mi)/(126.3702 mi/h) ≈ 7.913 h