Mathematics, 29.08.2019 15:00 gustavoroggero39

Suppose y varies directly with x, and y= 7 when x = 3. what is the value of x when y = 28? if 7 = k(3) then 28 = k(x) find x

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Suppose y varies directly with x, and y= 7 when x = 3. what is the value of x when y = 28? if 7 = k...