Question

The winner of a 250 mile race drove his car to victory at a rate of 137.1656 mph. What was his time (to the nearest thousandth of an hour)?

Upper level algebra
ANSWERED
asked 2021-03-02
The winner of a 250 mile race drove his car to victory at a rate of 137.1656 mph. What was his time (to the nearest thousandth of an hour)?

Expert Answers (1)

2021-03-03

The distance travelled d is the rate rr multiplied by time t:
\(\displaystyle{d}={r}{t}\)
Substitute \(\displaystyle{d}={250}{m}{i}\le{s}{\quad\text{and}\quad}{r}={137.1656}\mp{h}\) (miles per hour):
\(\displaystyle{250}={137.1656}{t}\)
\(\displaystyle{\frac{{{250}}}{{{137.1656}}}}={t}\)
\(\displaystyle{t}≈{1.823}{h}{o}{u}{r}{s}\)

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