Question

D=2730 mit=9.75 hfind r

Answer 1

In order to calculate the speed r, we can use the formula:

$\text{distance}=\text{speed}\cdot\text{time}$

So, for the distance of 2730 miles and time of 9.75 hours, we have:

$\begin{gathered} 2730=r\cdot9.75 \\ r=\frac{2730}{9.75} \\ r=280 \end{gathered}$

Therefore the value of r is 280 mph.