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andre [41]
3 years ago
10

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 we

igh?
Mathematics
1 answer:
GenaCL600 [577]3 years ago
7 0
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 <==
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A house painter has an annual income of $35,000 and paid $2,500 in income tax. What percent of her income is the income tax?
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Answer:

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Percentage = \frac{Part\ value\times 100}{Total\ value}

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