Asked by Joe
If y varies jointly as w and x, and y is 483 when x is 742 and w is 383, find y when x is 274 and w is 756.
Answers
Answered by
Steve
y = kwx
First, find k. Do this by plugging in x,w,y:
483 = k*742*383 so
k = 0.0016995
Now, knowing k, find y:
y = 0.0016995 * 274 * 756
y = 352
First, find k. Do this by plugging in x,w,y:
483 = k*742*383 so
k = 0.0016995
Now, knowing k, find y:
y = 0.0016995 * 274 * 756
y = 352
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