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Mathematics, 28.01.2020 04:31 whitakers87

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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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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