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February 28, 2015

February 28, 2015

Posted by **Miranda** on Sunday, May 6, 2012 at 1:13am.

A. When the buses meet, what is the sum of the distances they have travelled?

B. Let t represent the time the express bus was traveling when they met. What expression represents the travel time of the other bus?

C. Use the formula distance = rate x time. What equation models the situation?

D. Solve the equation. At what time did the buses meet?

No one has answered this question yet.

- Algebra -
**Reiny**, Sunday, May 6, 2012 at 7:51amThe instructions given makes the question more complicated than it has to be ...

time for the regular bus is t hrs

time for the express is t-1 hrs

distance covered by regular bus = 40t miles

distance covered by express bus = 50(t-1) miles

so:

50(t-1) = 40t

50t-50 = 40t

t = 5

the regular bus went for 5 hrs and the express bus went for 4 hours when they met, each having covered 200 miles.

(the 220 distance had nothing to do with the solution, it simply assured that they met before the journey was completed)

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