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igomit [66]
3 years ago
14

If y varies directly as x, and y = 36 as x = 9, find y for the x-value 5

Mathematics
1 answer:
katen-ka-za [31]3 years ago
6 0
Y varies directly as x means this equation : y=kx

given y=36 and x=9, plug it into the equation to find k
          36 = 9k, so k=?
             k=4

so now you have your equation y=4x
and you're trying to find y given x=5
so
y= 4(5) so y=?
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