SOLUTION: y varies directly as the square of R. If y = 196 when R = 7 find y when R - 3

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 Click here to see ALL problems on Miscellaneous Word Problems Question 328211: y varies directly as the square of R. If y = 196 when R = 7 find y when R - 3Answer by Alan3354(30983)   (Show Source): You can put this solution on YOUR website!y varies directly as the square of R. If y = 196 when R = 7 find y when R - 3 --------------- I suppose you mean when R = 3. y = kR^2 196 = k*7^2 = 49k k = 4 ------ @R = 3, y = 4*3^2 = 36