Mathematics, 25.11.2021 15:50 httpcindy14

If z varies directly as x and inversely as y and is equal to 4 when x and y have the values 12 and 8 respectively, what is the value of z when x is equal to 6/7 and y is equal to 5/28?

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If z varies directly as x and inversely as y and is equal to 4 when x and y have the values 12 and 8...