SOLUTION: How do I set up this equation? Dumi travels 62 miles each day from his house to school. he walks to the bus stop at 4 miles per hour. He rides the rest of the way by bus which a

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Question 634224: How do I set up this equation?
Dumi travels 62 miles each day from his house to school. he walks to the bus stop at 4 miles per hour. He rides the rest of the way by bus which averages 40 miles per hour. The entire trip takes 2 hours. How much time does he spend walking and how much time does he spend on the bus?

Answer by ankor@dixie-net.com(22740) About Me  (Show Source):
You can put this solution on YOUR website!
Dumi travels 62 miles each day from his house to school.
he walks to the bus stop at 4 miles per hour
He rides the rest of the way by bus which averages 40 miles per hour.
The entire trip takes 2 hours.
How much time does he spend walking and how much time does he spend on the bus
:
Let b = time spent on the bus
"Entire trip takes 2 hrs," therefore:
(2-b) = time spent walking
:
Write a distance equation, dist = speed * time
:
Bus dist + walk dist = 62 mi
40b + 4(2-b) = 62
:
Find b, (time spent on the bus) then time walking