Homework Help: College Algebra

Posted by AJ on Tuesday, August 31, 2010 at 7:22pm.

two trains leave a train station at the same time. One travels east at 10 miles per hour, the other travels west at 9 miles per hour. In how many hours will the two trains be 45.6 miles apart?

College Algebra - jai, Tuesday, August 31, 2010 at 9:26pm
let x = time it takes for them to be 45.6 miles apart (in hours)

recall: (speed)*(time)=distance
>>since they travel in opposite directions, the distances between the station to their present location will be added.
10x + 9x = 45.6
19x = 45.6
x = 2.4 hours

so there,, =)

Answer this Question

Related Questions

math - Two trains leave a train station at the same time. One travels east at 10...
Math - Two trains leave a train station at the same time. One travels east at 11...
Algebra - Two trains leave Raleigh at the same time, one traveling north, the ...
Math Algebra - A quick question to check my answer. Trains A & B are ...
college - Trains A and B are traveling in the same direction on perallel tracks...
algebra - trains a and b are traveling in the same direction on parallel tracks...
algebra - trains a and b are traveling in the same direction on parallel tracks...
algebra - Trains A and B are traveling in the same direction on parallel tracks...
Algebra - trains a and b are traveling in the same direction on parallel tracks...
algebra - trains A and B are traveling in the same direction on paraleel tracks...

For Further Reading

First Name:
School Subject:
Answer: