Answer:
m = 686.
Step-by-step explanation:
Direct variation :
m= kl^3 where k is a constant.
m = 250 when l = 5, so
250 = k *(5)^3
k = 250 / 125 = 2
So the equation of variation is m = 2l^3.
When l = 7:
m = 2 * (7)*3
= 2 * 343
= 686.
answer: 72
Hope that helps!
3x + 6y = 36
+ 3x - 6y =0
------------------------
6x = 36
x = 36/6
x = 6
3(6) - 6y = 0
18 - 6y = 0
-6y = -18
y = 3
composite number
