Posted by **Danny** on Tuesday, November 7, 2006 at 6:01pm.

Write one or two equations to represent the situation below. Solve the equation(s). Show all your work.

Two cars leave town going in opposite directions. The car heading north travels at 55 mph. The car heading south travels at 75 mph. How long will it take them to get 715 miles apart?

4+4=

What??

distanceapart=(55 + 75)*time

solve for time.

So the equation is:

715=(55+75)t

715=(55+75)t

55+75=130

the answer should be

t= 5.5

Try it on your calculator i don't want to get it wrong for you :)

- 7th Grade Math -
**sarah**, Thursday, September 18, 2008 at 10:12pm
99=25+z+{-12}

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