Question

Find the number of hours it would take to drive 510 miles at 55 mph. Round to the nearest tenth of an hour. i THINK ITS 9.3 BUT IM NOT SURE?

Answer 1

yes, you are correct it is 9.3.

hope this helps.

Answer 2

Answer:   It would take 9.3 hours to take 510 miles.

Step-by-step explanation:  We are given to find the number of hours it would take to drive 510 miles at 55 mph.

We will be using the UNITARY method to solve the given problem.

According to the given information, we have

Number of hours taken to drive 55 miles = 1 hour.

So, number of hours taken to drive 1 mile will be

$\dfrac{1}{55}~\textup{hour}.$

Therefore, the number of hours it would take to drive 510 miles is given by

$\dfrac{1}{55}\times510=\dfrac{102}{11}=9.27~\textup{hour}.$

Rounding to nearest tenth of an hour, we get

9.27 hour ≈  9.3 hour.

Thus, it would take 9.3 hours to take 510 miles.