Aussie: Easy Maths problem, please help guys?
two commuter trains carry passengers between two cities, one travelling east, and the other west, on different tracks. Their respective stations are 150 miles apart. both trains leave at the same time, one travelling at an average speed of 55 miles per hour and the other at an average speed of 65 miles per hour. let t represent the time until the trains pass each other
a)write an equation using t that describes the distances travelled
b)how long after departing will the train pass each other.
I don’t understand part a).. I can work out b) but I really don’t know a)! How can you do a) without the info gained in b)?
As t is the time until they pass it will become negative after they pass. Does my teacher mean the distance train A and train B travel added together? If so I have NO idea how to relate this to t!
Please help! Quick points!
Answers and Views:
Answer by Sophie C
a) is the equation you would use to work out b). B) Is actually solving it.
Basically, how would you work out B? What would you use to answer it.
You say you can do that so just write down what you would do to figure it out.
In the form of an equation. Start with t=
then just write out what you need to do
sorry I suck at explaning on the computor
good luck!
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