Homework Help: Math

Posted by awade on Wednesday, October 24, 2012 at 9:22pm.

An eastbound train and a westbound train meet each other on parallel tracks heading in opposite directions. The eastbound train travels 12 miles per hour faster than the westbound train. After 1.5 hours, they are 174 miles apart. At what speeds are the two trains traveling?

Math - Reiny, Wednesday, October 24, 2012 at 11:03pm
speed of westbound train -- x mph
speed of eastbound train -- x+12

1.5x + 1.5(x+12) = 174
1.5x + 1.5x + 18 = 174
3x = 156
x = 52

westbound train --- 52 mph
eastbound train ---- 64 mph

check"
1.5(52) = 78
1.5(64) = 96
78+96 = 174

answer is correct.

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