Answer:
3
Step-by-step explanation:
It’s A because it’s the only equation that gives the answer for how many feet in 10 seconds
Answer:
4500/9= 500
Also what did you mean by using metal?
Multiply first equation by 2:
10x + 2y = 18
Subtract the second equation from this so that the 2y terms cancel:
10x - 3x = 18 - 4
7x = 14
x = 2
Plug into first equation to find y:
5(2) + y = 9
10 + y = 9
y = -1
The answer is (2,-1)