Answer:
C. Greg weighs 180 pounds, and Justin weighs 165 pounds
Step-by-step explanation:
let G be the weight of Greg and J be the weight of Justin
G -15=J
G/2 +75=J
G =J+15 (1)
G+150=2J. (2)
If We substitute G by J+15 in equation (2) we will get:
G =J+15
J+15+150=2J
G =J+15
J+15+150=2J
G =J+15
J+165=2J
then J=165 and G=165+15=180
I did the math and if I’m not mistaken he gets 9.26666666667
Aka 9
If I’m wrong I’m sorry but that’s what I got
2 solutions because you have 2 different equations
5(z-4)-z=4z-20
5z-20-z=4z-20
4z=4z
z=z
The answer is C
27.928cm² the process is shown in the following picture
