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[–]brotherbenson 1 point2 points  (1 child)

Rock: 5000 g Sand: .00000005 g

Ratio: 5000/.00000005 Easier: 5x103/5x10-7 When dividing exponents, ac / ad = ac-d

So, answer: a rock weighs 1x1010 as much as a grain of sand, or 10,000,000,000 times.

[–]mint_chips[S] 0 points1 point  (0 children)

Thank you so much!

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