Hi

y varies directly with the square of x and inversely with z:  

 y = kx^2/z

16 = k 2^2/3   | y = 16 when x=2 and z=3

 12 = k

find y when x=5 and z=4

 y = 12*5^2/4

 y = 75 

RELATED QUESTIONS

y varies directly with the sqquare of x and inversely with z.  If y=16 when x=2 and z=3,... (answered by robertb)

Z varies directly with x and inversely with the cube of y when z = 8 and y = 2 , z =3 
 (answered by Alan3354)

Given:  y varies directly as x and inversely as z.

Find k (the constant of variation)... (answered by richwmiller)

Suppose z varies directly with x and inversely with the square of y. If z=12 when x=3 and  (answered by Alan3354)

Suppose z varies directly with x and inversely with the square of y
. If z=9 when x=3... (answered by KMST)

suppose y varies directly with x and inversely with the square of z ,and x=48 when y=8... (answered by MathTherapy)

y varies directly as x inversely as the square of z. y=32 when x=36 and z=3 Find y when... (answered by Boreal)

Suppose z varies directly with x and inversely with the square of y. When x= 5 and y= 9,... (answered by Alan3354)

Suppose z varies directly with x and inversely with the square of y. When x=5 and Y= 9,z=  (answered by stanbon)