Alright 3 hours =315 because u add up both miles so per hour they move 105miles closer to each other so now we need to figure out how to get an extra 45 miles
anwser 3hours and 26.08695652173913 min
Answer:
sorry can't without diagram
Step-by-step explanation:
Answer:

Step-by-step explanation:
An expression means that we don't know enough to create an equation. So, this means we will mostly be using variables.
John runs r amount every day. We need to create an expression for if he runs r amount for 4 days.

r = how much he runs per day
4 = how many days he runs
z = how much he runs this week
This is your expression!
In step 3, you added 8x onto the other side instead of subtracting it from 15x.