We want the ratio of orange sea shells to pink sea shells to be 3:7. We should use 40 shells. How many orange shells should we paint?

Question

Meredith Powell

Mathematics

24 February, 23:04

We want the ratio of orange sea shells to pink sea shells to be 3:7. We should use 40 shells. How many orange shells should we paint?

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Answers (2)

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Layla Romero · Answer 1

Layla Romero 24 February, 23:09

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You should paint 12 sea shells.

Kaufman · Answer 2

The ratio 3:7 shows a precentage, 30%:70%. the precent you want to paint orange is 30%. To change percentage into a value you move the decimal over two places to the left, 30.0% is 0.30. so you multiply 40 shells by 0.30 to get the answer of 12 shells.