The answer is none. Since you have to add your a's first, your left with 0 meaning that there is no more a's meaning that you have no solution. Hope this helps!
Answer:
Step-by-step explanation:
1. The formula for distance=speed X time
18 X 2 X3600=129600km/s
152700 is answer. Try to do these problems on paper then you can see where you went wrong . also try to do the actual question
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:
half of a number is 15
Step-by-step explanation:
An equation must contain an equality sign.
The third option is the only phrase that can be represented as an equation: 
