Question

The Grand Canyon is approximately 29 kilometers long. Mariner Valley is a canyon on Mars that is approximately 212 kilometers long. About how many times longer is Mariner Valley than the Grand Canyon? 2 23 221 2108

Answer 1

212÷29=7.31034
So about 7 times longer

Answer 2

The Mariner Valley is longer than the Grand Canyon by 7.31 times.

Explanation:

The Grand Canyon is approximately 29 kilometers long.

Mariner Valley is a canyon on Mars that is approximately 212 kilometers long.

Mariner Valley is longer than the Grand Canyon by
`(212)/(29)` =7.31 times

Hence, the Mariner Valley is longer than the Grand Canyon by 7.31 times.