Question

A semi-truck traveling at an average speed of 70 miles per hour covers a distance of 35 miles. How long did it take?

Answer 1

It took `0.5` hours.

Explanation:

Rearrange the formula for speed.

`\text(speed) = \text(distance)/\text(time)`

`\text(time) = \text(distance)/\text(speed)`

Substitute known values.

`\Deltat = (35\text(mi))/(70\text(mi)/\text(h))`

`\Deltat = 0.5 \text(h)`