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OpenStudy (anonymous):
two trains leave at the same time traveling in opposite directions. If one train is going 3 times as fast as the other train and the trains are 240 miles apart after 1.5 hours, then how fast is each train moving. Help please
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OpenStudy (anonymous):
You have to set up a distance rate and time equation
OpenStudy (anonymous):
d=rt
OpenStudy (anonymous):
One second I'll set it up
OpenStudy (anonymous):
|dw:1409185923345:dw|
OpenStudy (anonymous):
so would this work 3x-240<1.5
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OpenStudy (anonymous):
no you would have to do 1.5x+1.5(3x)=240
OpenStudy (anonymous):
which would become 6x=240 x=40
OpenStudy (anonymous):
then you plug it into each train so train 1 is moving 40 mph while train 2 is moving 120 mph
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