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Vlada [557]
4 years ago
12

HELP:

Mathematics
1 answer:
Evgen [1.6K]4 years ago
5 0
He spent 12 hours studying science.

The ratio of time Jerome spends on math and science, respectively, is 4:3.  We know he spent 16 hours studying math last week, so our proportion looks like:

4/3 = 16/x

Cross multiply:
4*x = 3*16
4x = 48

Divide both sides by 4:
4x/4 = 48/4
x = 12

Since Jerome and Ross spent the same amount of time on science, then Ross also spent 12 hours on science.
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soldier1979 [14.2K]
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so.. if we take 2.86 as the 100%, how much is 0.07 of that in percentage?

well \bf \begin{array}{ccllll}
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2.86&100\\
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