Question

Hey guys could u help me out here please and thank u

Answer 1

It is given that Laura drove 819 miles in 13 hours.

Recall that the rate is given by

`Rate=\frac{\text{distance}}{\text{time}}`

So, the rate at which Layra drove is

`Rate=(819)/(13)=63\; mph`

At the same rate (63 mph) how long would it take her to drive 315 miles?

Re-writing the above formula for time,

`time=\frac{\text{distance}}{\text{Rate}}=(315)/(63)=5\; hours`

Therefore, it would take her 5 hours.