SOLUTION: Pete and his family take a trip out into the country by car. On the way out he travels at 40 MPH . When they hit snow he turned around and started back traveling at 30 MPH. If the
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Question 557673: Pete and his family take a trip out into the country by car. On the way out he travels at 40 MPH . When they hit snow he turned around and started back traveling at 30 MPH. If the entire trip took 7 hours, how far out into the country did they go?
I tried 40x + 30x = 7(60)
But that is not the correct answer.
if you could help me that would be great Answer by josmiceli(19441) (Show Source):
You can put this solution on YOUR website! Let = distance in miles they went into country
Let = time in hrs to go into country = time in hrs to get back
Going into country:
(1)
Coming back:
(2)
----------------
By substitution:
and
(1)
(1)
(1)
They went 120 miles into country
check:
(2)
(2)
(2)
OK
