lilian05142003 lilian05142003

23-08-2016
Mathematics

contestada

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?

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TheChillKilo TheChillKilo

23-08-2016

7.3 times bigger than the grand canyon

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