speed distance time word problem

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geet
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Joined: Thu Feb 02, 2012 1:17 pm
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speed distance time word problem

Postby geet » Thu Feb 02, 2012 1:47 pm

Distance betw NY and Paris is 315miles. Ra and Pa leave NY at same time. However Pa arrives in Paris 1hr 10mins before Ra with an avg speed that was 9 miles per hr faster. how fast was each traveling ?

theshadow
Posts: 115
Joined: Sun Feb 22, 2009 11:12 pm

Re: speed distance time word problem

Postby theshadow » Thu Feb 02, 2012 7:09 pm

geet wrote:Distance betw NY and Paris is 315miles. Ra and Pa leave NY at same time. However Pa arrives in Paris 1hr 10mins before Ra with an avg speed that was 9 miles per hr faster. how fast was each traveling ?

you can see how to set this up here. Since they give Pa's speed in terms of Ra's speed, pick a variable for Ra's speed and then do an expression for Pa's speed. Go from there, using d=rt w/ d=315 and the stuff you just did for r.


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