Answer:
let t = no of minutes when they are at the same altitude
:
52200 - 3300t = 2500t
52200 = 3300t + 2500t
52200 = 5800t
t = 52200/5800
t = 9 minutes they will be at the same altitude
:
The altitude:
9*2500 = 22500 ft
:
Check on other train
52200 - 9(3300) =
52200 - 29700 = 22500 ft
Answer:
Y=X
Step-by-step explanation:
Answer:
5 L
Step-by-step explanation:
As given in question,
1 L can fill 4.2 cups.
So, 1 cup can hold 
L of fluid.
Therefore,
21 cups can hold = × 21
= 5 L
So, there is 5 L of fluid in 21 cups.
10-3= 7
3-10= -7
Those are 2 ways to use those numbers with subtraction
