Question

Tom  and Arnold both leave the internet cafe at the same time, but in opposite directions. If Tom travels 9mph and Arnold travels 16mph, how long until they are 200 miles apart?

Answer 1

Hello There! ;)

Work:
First, we create our equation right so its...
9x + 16x = 200
25x = 200

Then, we can just divide 25/200
Which is 8

Answer:
x= 8 h or hours.

Hoping this helps you!
-Arianna

Answer 2

x = hours walking
9x + 16x = 200
25x = 200
x = 8 hours