SOLUTION: y varies directly as the square of x and inversely as the square root of z. if x is quadrupled and z is multiplied by 8, How much will y change?

Algebra ->  Proportions -> SOLUTION: y varies directly as the square of x and inversely as the square root of z. if x is quadrupled and z is multiplied by 8, How much will y change?      Log On


   

Question 1014926: y varies directly as the square of x and inversely as the square root of z. if x is quadrupled and z is multiplied by 8, How much will y change?
Answer by ikleyn(52785) About Me  (Show Source):
You can put this solution on YOUR website!
.
y varies directly as the square of x and inversely as the square root of z. if x is quadrupled and z is multiplied by 8, How much will y change?
---------------------------------------------------------- 

Answer.   Y%5Bnew%5D%2FY%5Bold%5D = %284%5E2%29%2Fsqrt%288%29 = 16%2F%282%2Asqrt%282%29%29 = 8%2Fsqrt%282%29 = %288%2Asqrt%282%29%29%2F2 = 4%2Asqrt%282%29.