The fact your family drove from arizona to malibu ,california to spend a week at the beach they drove 421 miles in nine hours what was their average speed in miles per hour?

To solve this question, you need to do 421 divided by 9.

421 divided by 9 will get you a long number, which is 46.7777778.

Round your number up by the hundredths place. You will get 46.78.

The average speed in miles per hour would be 46.78 MPH.

The answer is 63.!