Question

How many hours must you drive if you drive 643 miles at 65 mph on the interstate? Round to the nearest tenth hour

Answer 1

9.9 hours, rounded to the nearest tenth hour.

Explanation:

To calculate the time of travel, we must first divide the distance by the speed. Why, you ask? Because of this equation:

`Speed\=\ (distance)/(time)`

Therefore, with a little bit of arrangement, we get:

`Time\=\ (distance)/(speed)`

So, let's get on with it.

`Time\=\ (643 \ miles)/(65 \ mph)`

`Time\=\ 9.9 \ hours`

Finally, we have our answer: 9.9 hours, rounded to the nearest tenth.

Hope this helped!

Answer 2

In order to drive 643 miles at 65 mph, I believe it would take 9.9 hours. (It is 9.8923 not rounded to the nearest tenth btw lol) I hope this is right! :)