SOLUTION: manuel traveled 7 hours nonstop to mexico, a total of 232 miles. he took a train part of the way, which averaged 40 mph, and then took a bus the remaining distance, which averaged

Question 905302: manuel traveled 7 hours nonstop to mexico, a total of 232 miles. he took a train part of the way, which averaged 40 mph, and then took a bus the remaining distance, which averaged 30 mph. how long was manuel on the train?
Answer by mananth(16946) (Show Source): You can put this solution on YOUR website!
manuel traveled 7 hours nonstop to mexico, a total of 232 miles. he took a train part of the way, which averaged 40 mph, and then took a bus the remaining distance, which averaged 30 mph. how long was manuel on the train?
Average =232/7 = 33.11
Let him travel x miles by bus
x/30 +(232-x)/40 = 7
multiply equation by 120
4x+3(232-x) = 120*7
4x+696-3x=840
x=840-696
x=144
144/30
=4.8 on bus
2.2 hours on train
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