Answer: 1st train = 364 mph, 2nd train = 356.2
Step-by-step explanation:
Train 1: x + 7.8
Train 2: x
Train 1 + Train 2 = Sum
x + 7.8 + x = 720.2
7.8 + 2x = 720.2
2x = 712.4
x = 356.2
Train 1: x + 7.8
= 356.2 + 7.8
= 364
Answer:46
Step-by-step explanation:
The slope of that line is m=2/5
Answer: x = 4, y = 3
<u>Step-by-step explanation:</u>
and 
Using substitution method we get:
