Answer:
y = 3x + 1
Step-by-step explanation:
Do 51 and 2.5 then when you get that add 42 to your answer
3/9 is your answer. 3+6=9 and there are 3 red marbles.
SOLUTION
At the same time t,
Train 1 would have covered a distance of 80t, since distance = average speed x time.
Train 2 would have covered a distance of 70t.
Now both added should give 210 miles
That is 80t + 70t = 210
150t = 210
t = 210/150
t = 1.4 hours
