m = 24
80
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.
57
xy = is a constant (k) so k = -360. When y = - 36, x = 10
What is y? Fx varies with x, but y could be anything.
1
x = 24
80
290
3
25
y is 12
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.
y=(320 x 25 )/ 40 = 200.
57
40
y = -5