Answer:
The answer to 12 - 8 is 4.
Step-by-step explanation:
Start off with 12 and subtract 8 using your fingers to help, counting up by 1 while counting down from 12, like so:
12, 11, 10, 9, 8, 7, 6, 5, 4.
When you reach 4, stop there. The value you stop at is your answer.
So, your answer will be 4.
12 - 8 = 4
i dont know how to explain.
w = 2, EF = 30 , FG = 42
Explanation:
We have EF = 5w + 20 and FG = 7w + 28
Since these points E, F and G are col-linear points we have.
EG = EF + FG
And given that EG = 72
So, EF+EG = 72
5w + 20 + 7w + 28 = 72
12w + 48 = 72
12 w = 24
w = 2
So EF = 5w + 20 = 5x2 + 20 = 30
FG = 7w + 28 = 7x2 + 28 = 42
S = (-8, 0 )
