SOLUTION: Thaddeus and Ian start at the same location and drive in opposite directions, but leave at different times. When they are 375 miles apart, their combined travel time is 9 hou
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Question 1158409: Thaddeus and Ian start at the same location and drive in opposite directions, but leave at different times. When they are 375 miles apart, their combined travel time is 9 hours. If Thaddeus drives at a rate of 40 miles per hour and Ian drives at a rate of 45 miles per hour, how long had each been driving? Answer by josmiceli(19441) (Show Source):
You can put this solution on YOUR website! Let = the distance the slower one travels = the distance the faster one travels
Let = the time the slower one travels = the time the faster one travels
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(1)
(2)
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(2)
(2)
Substitute (1) into (2)
(2)
(2)
(2)
and
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The slower one travels for 6 hrs
The faster one travels for 3 hrs
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check:
(1)
(1)
(1)
and
(2)
(2)
(2)
(2)
(2)
OK
