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If X varies inversely as y2 and x equals 5 when y equals 12 Find x when y equals 6?

80


If y varies inversely as x and y equals 725 when x equals 20 find x when y is 50?

290


If y varies inversely as x and y equals 3 when x equals 6 find the value of x when y equals 18?

3


If y varies inversely as x and y equals 24 when x equals 8 find y when x is 4?

y is 12


X varies directly with y and inversely with z x equals 0.25 y equals 10 and z equals 20 find x when y is 20 and z is 10?

1


If m varies directly as n and inversely as o and m equals 20 when n equals 50 and o equals 10 find m when n equals 96 and o equals 16?

m = 24


X varies directly with y and inversely with z x equals 0.12 when y equals 12 and z equals 2 Find x when y equals 1200 and z equals 1?

x = 24


If y varies inversely as x and y equals 320 when x equals 25 find y when x is 40?

y=(320 x 25 )/ 40 = 200.


If X varies inversely as Y and X equals -24 when Y equals 15 find X when Y equals -36?

xy = is a constant (k) so k = -360. When y = - 36, x = 10


Assume that y varies inversely as x. If y equals -6 when x equals-2 find y when x equals 5?

-6/y=5/-2 5y=12 y=12/5


Suppose y varies inversely with X use the information to find K and choose the equation of variation. X equals 7 and y equals 3?

xy = K so K = 21


X varies directly with y and inversely with z x equals 20 when y equals 8 and z equals 4 Find x when y equals 4 and z equals 8?

The answer is x=10. If: x=20 y=8 z=4 then: y=8/2=4 z=4*2=8 since x varies directly with y, meaning whatever happens to y, happens to x, so if y was divided by 2, then x should be divided by 2. After all, the inverse of division is multiplication.