Homework Help: Algebra

Posted by Miranda on Friday, May 4, 2012 at 12:53am.

The bus stations in Trawlwy and Fenton are 220 miles apart. A bus left Trawley for Fenton at 9:00am. Traveling at 40 miles per hour. One hour later, an express bus left Fenton for Trawley traveling along the same road at 50 miles per hour. At what time did the buses pass each other?

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?

traveledAlgebra - Henry, Sunday, May 6, 2012 at 5:54pm
A. 220 Miles.

B. 40(t+1).

C. 40(t+1) + 50t = 220

D. 40t + 40 + 50t = 220
90t = 220-40 = 180
t = 180/90 = 2 hrs.

T=9:00AM + (t+1)=9:00 + 3 hrs=12 Noon.
= The time they met.

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