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varies directly

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y varies jointly as x and the square of z and... 2009-01-05
peter pose la question :
I don't really get the terms in this problem. Could you explain it: If y varies jointly as x and the square of z and inversely as the cube of w, by what factor is y increased when z is doubled and w is divided by 3 and x remains the same?
Harley Weston lui répond.
Direct variation 2007-05-07
Jennifer pose la question :
assume that y varies directly as x. find y when x = 54 if y =1/4 when x=3/2
Stephen La Rocque lui répond.
Direct variation 2006-11-05
Johann pose la question :
The perimeter of regular octagon varies directly with the length of one side of the octagon
Stephen La Rocque lui répond.
 
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