Joint Variation

E If w varies jointly as x and y and w = 36 when x = 3 and y = 4, find the constant of variation. S If z varies jointly as x and y and z = 24, when x = 3 and y = 4, find z when x = 3 and y = 2. T If A varies jointly as l and w and A is 36 when l = 9 and w = 2, find A if l = 6 and . w = 4. ................
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