SOLUTION: If y varies jointly as w and x, fill in the missing values. Also, find the constant of proportionality. W X Y 45.4 18.2 121 19.5 41.5 ___ ___

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Question 1182907: If y varies jointly as w and x, fill in the missing values. Also, find the constant of proportionality.

W X Y
45.4 18.2 121
19.5 41.5 ___
___ 8.8 155
12.4 ___ 79.9
Found 2 solutions by josgarithmetic, MathLover1:
Answer by josgarithmetic(39618)   (Show Source): You can put this solution on YOUR website!
Your chart will look better if done inside of the PRE tags. 
W	    X	         Y
45.4	   18.2 	121
19.5       41.5	        ___
___        8.8	        155
12.4	   ___      	79.9

You would start by using the description as for the variation constant, k. Use your first row set of values to help find the value for k.
.
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Answer by MathLover1(20850)   (Show Source): You can put this solution on YOUR website!
Joint variation problems are solved using the equation

.......... ..........
... ...
... ... ___
___ ........
.... ___ ...
use first row to calaculate


121= k*826.28


then



approximately





approximately






approximately

complete table:

.......... ..........
... ...
... ...
........
.... ...


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