SOLUTION: Gary runs 1 km/h faster than Margie.
They run in opposite directions for 2 hours.
They are then 30 km apart.
How many km/h does Margie run?
Algebra.Com
Question 38370: Gary runs 1 km/h faster than Margie.
They run in opposite directions for 2 hours.
They are then 30 km apart.
How many km/h does Margie run?
Answer by fractalier(6550) (Show Source): You can put this solution on YOUR website!
Remember D = RT, distance = rate*time.
Let Margie's rate be r.
Then Gary's rate is r + 1.
The sum of their distances is 30 km.
So, since they ran for 2 hours, t = 2, and we have
2r + 2(r + 1) = 30
2r + 2r + 2 = 30
4r + 2 = 30
4r = 28
r = 7, Margie's rate.
RELATED QUESTIONS
Pierre bikes 7 km/h faster than Sal. They start at the same place and travel in opposite... (answered by richwmiller)
Two cars leave town traveling in opposite directions at 50 km/h and 40 km/h. In how many... (answered by mananth)
After Sam and Pat bike in opposite directions for 2&1/2 hours, they are 80km apart. If... (answered by venugopalramana)
Marion walks 1 mph faster than Beth. They walk in opposite directions for 2 hours. They... (answered by funmath,Nate)
Two cars leave town at the same time going in opposite directions. one travels at 35 km/h (answered by pushpaharan)
two cars leave town @ the same time going in opposite directions. one is going at 25 km/h (answered by joyofmath)
Two cars leave Salt Lake City, traveling in opposite directions. One car travels at a... (answered by checkley75)
two cars leave town traveling in opposite directions. one travels at 80 km/h and the... (answered by richwmiller)
Two cars leave town traveling in opposite directions. One travels at 80 km/h and the... (answered by josmiceli)