<PRE><B>Question 154757</B>
Two cars leave a gas station traveling in opposite directions. One car travels at 60 mph and the other at 64 mph. In how many hours will they be 310 miles apart?
--------------
1st car DATA:
distance = x miles ; rate = 60 mph ; time = x/60 hrs.
-----------------
2nd car DATA:
distance = 310-x miles ; rate = 64 mph ; time = (310-x)/64 hrs.
-----------------
EQUATION:
time = time
x/60 = (310-x)/64
64x = 60(310-x)
124x = 60*310
x = 150
1st car time: 150*60 = 15/6 = 5/2 = 2 1/2 hrs
2nd car time is the same.
---------------------------
Cheers,
Stan H.</PRE>