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20 December, 13:35

The variable z is directly proportional to x, and inversely proportional to y. When x is 5 and y is 16, z has the value 2.1875. What is the value of z when x = 8, and y = 25

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  1. 20 December, 14:00
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    Z=24/25

    You have to look for the coefficient so you have to work backwards to find it. Then you plug in the numbers to solve for it.
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