SOLUTION: A train leaves Chicago at 115 miles per hour towards Denver. Another train leaves Denver at 105 miles per hour towards Chicago. If the distance between the cities is 1200 miles, ho
Algebra ->
Customizable Word Problem Solvers
-> Travel
-> SOLUTION: A train leaves Chicago at 115 miles per hour towards Denver. Another train leaves Denver at 105 miles per hour towards Chicago. If the distance between the cities is 1200 miles, ho
Log On
Question 931270: A train leaves Chicago at 115 miles per hour towards Denver. Another train leaves Denver at 105 miles per hour towards Chicago. If the distance between the cities is 1200 miles, how long will it be before the trains meet? Answer by TimothyLamb(4379) (Show Source):
You can put this solution on YOUR website! relative speed of trains:
s = 115 + 105
s = 220 mph
---
time when the trains meet:
s = d/t
t = d/s
t = 1200/220
t = 5.45454545455
---
answer:
the trains will meet 5.455 hours after they depart
---
Solve and graph linear equations:
https://sooeet.com/math/linear-equation-solver.php
---
Solve quadratic equations, quadratic formula:
https://sooeet.com/math/quadratic-formula-solver.php
---
Convert fractions, decimals, and percents:
https://sooeet.com/math/fraction-decimal-percent.php
---
Calculate and graph the linear regression of any data set:
https://sooeet.com/math/linear-regression.php
