25
290
3
y=(320 x 25 )/ 40 = 200.
xy = K so K = 21
50
80
290
3
y is 12
1
m = 24
x = 24
y=(320 x 25 )/ 40 = 200.
xy = is a constant (k) so k = -360. When y = - 36, x = 10
-6/y=5/-2 5y=12 y=12/5
xy = K so K = 21
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.