Wednesday

July 23, 2014

July 23, 2014

Posted by **Megan Brown** on Wednesday, January 26, 2011 at 3:44pm.

- Algebra -
**helper**, Wednesday, January 26, 2011 at 4:40pmRT = D (Rate x Time = Distance)

R = rate of southbound train

4 = time of southbound

4R = distance of southbound train

R - 12 = rate of northbound train

4 = time of northbound

4(R - 12) = distance of northbound train

Since the sum of distances = 528

4R + 4(R - 12) = 528

Solve for R, rate of southbound train

R - 12 = rate of northbound train

**Related Questions**

math - A northbound train and a southbound train meet each other on parallel ...

Algebra 1 - Two bullet trains leave the station at the same time traveling in ...

Math - Train A and train B leave station going in opposite directions. Train B ...

math - Two trains are traveling the same direction, train a is going 60 mph and ...

mathematics - Train L and Train M leave a station at the same time heading in ...

Math - A train going 60 mph left several minutes before the 63mph train. ...

algebra - train A and B are traveling in the same direction on parallel tracks. ...

math - two trains leave Austin one train going north at 80 mph and one going ...

Calculus - A train is heading due west from St. Louis. At noon, a plane flying ...

Armwood - Abby’s bus left at 2:00, going southbound at 55 mph. Bob’s went ...