SOLUTION: Carlos takes 3 hours longer than Ty to walk 30 miles; but if Carlos doubles his pace, he takes 2 hours less than Ty. Find (a) the rate at which Carlos walks and (b) the rate at whi

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Question 1116864: Carlos takes 3 hours longer than Ty to walk 30 miles; but if Carlos doubles his pace, he takes 2 hours less than Ty. Find (a) the rate at which Carlos walks and (b) the rate at which Ty walks.
Answer by josmiceli(19441)   (Show Source): You can put this solution on YOUR website!
Let = Ty's time in hrs to walk mi.
when he walks at rate in mi/hr
= Carlos's time to do this
--------------------------------------------
Carlos's rate is
Double this rate is
Carlos's time at this rate is
--------------------------------------------
Ty's equation:


Carlos's equation:





--------------------
Ty's rate is:

mi/hr
----------------------
Carlos's rate is:

mi/hr
----------------------------------
check:
Double Carlos's pace is mi/hr
Two hrs less tiome than Ty is hrs

OK


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