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OpenStudy (anonymous):
help me please If a varies directly as b, and a = 28 when b = 7, find b when a = 5
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OpenStudy (anonymous):
a = k*b 28 = k * 7 find k
OpenStudy (anonymous):
is 39.2
OpenStudy (anonymous):
@surdawi god i hated these things
OpenStudy (anonymous):
how?
OpenStudy (anonymous):
If a varies directly as b, and a = 28 when b = 7, find b when a = 5. 4/5 5/4 39.2
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OpenStudy (anonymous):
is c
OpenStudy (anonymous):
just find the the k value in here 28 = k * 7
OpenStudy (anonymous):
is 4/5
OpenStudy (anonymous):
right, you got it
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