Answer:
-5x+9=9
-5x+9-9=9-9
-5x=0
x= 0/5
x= 0
Step-by-step explanation:
I think the answer is C ( 11 )
Here are the rates of the trains:
(n represents train A's speed)
A: n
B: n + 10
We know it is 5 hours, and total distance, so:
5(n) + 5(n + 10) = 1250
5n + 5n + 50 = 1250
10n = 1200
Divide:
n = 120
One train goes 120, the other goes 130
I believe the answer is b!!
- hope this helped!!