SOLUTION: ortiz travels twice as fast as his brother and therefore makes the 350 mile trip back home in 5 hours less less time. how fast does each drive,and how long does each travel?

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Question 328280: ortiz travels twice as fast as his brother and therefore makes the 350 mile trip back home in 5 hours less less time. how fast does each drive,and how long does each travel?
Answer by mananth(16949) About Me  (Show Source):
You can put this solution on YOUR website!
let brother's speed be xmph
Ortiz's speed = 2x
..
Distance / speed = time
Distance = 350 miles
brother takes 350/x hours
..
Ortiz takes 350/2x hours
..
350/x-350/2x = 5
LCM =2x
700-350 / 2x = 5
350=2x*5
350=10x
x=35 brother's speed
Ortiz's speed = 2x = 2*35=70mph