Question

A jet airplane reaches $737\mathrm{km}/\mathrm{h}$ on a certain flight.

How long does it take to cover $388k\mathrm{m}$ ?

Set the Math up.

But don't do any of it. Just leave your answer as a math expression.

Also, be sure your answer includes all the correct unit symbols.

Answer 1

Find the expression for time:

The formula to calculate time is $\mathrm{time}=\frac{\mathrm{distance}}{speed}$.

Substitute $388\mathrm{m}$for the distance and $737\mathrm{km}/\mathrm{h}$ for the velocity in the equation $\mathrm{time}=\frac{\mathrm{distance}}{speed}$.

$\begin{array}{rcl}\mathrm{time}& =& \frac{388k\mathrm{m}}{737\mathrm{km}/\mathrm{h}}\\ \therefore \mathrm{time}& =& \frac{388}{737}\mathrm{h}\end{array}$.

Hence, the required expression is $\mathrm{time}=\frac{388}{737}\mathrm{h}$.