Question

on a trip that took 10 hours, mark drove 2 fewer hours than mary. how many hours did mary drive?

Answer 1

marc+mary=10 hours
mary-marc=2 hours

Answer 2

I do not understand..

Answer 3

so, it's pretty easy. all you do is figure out how many hours marc drove by guesswork or by solving the equation. i'll give you a big hint mary drove 6 hours.

Answer 4

what would the equation look like?