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OpenStudy (anonymous):
Suppose that y is directly proportional to x and that y = 23.4 when x = 6. Find the constant of proportionality k. Then, find y when x = 15.
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OpenStudy (anonymous):
y=kx 23.4/6=3.9 Hence y=3.9x. Substitute x=15 in y=3.9 x y=58.5
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