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A geologist had two rocks on a scale that weighed 2 1/2 lbs together. Rock A was 1/7 of the total weight. How much did Rock A weigh?
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A geologist had two rocks on a scale that weighed 2 1/2 lbs together. Rock A was 1/7 of the total weight. How much did Rock A weigh?

User Yussef
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1 Answer

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the total weight is 2 1/2 lbs

Rock A is 1/7 of the total weight....so it is 1/7 of 2 1/2 lbs..." of " means multiply

1/7 * 2 1/2 =
1/7 * 5/2 =
5/14 lbs <==
User Stefan Vukovic
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