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27 July, 11:49

Asking again: If z varies jointly with x and y, x = 2 and y = 2, z = 7. Find z when x = 4 and y = 8.

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  1. 27 July, 12:41
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    x2-x4 then you would find that answer then do y2-y8 then you would make that a fraction but you would have to solve for z
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