SOLUTION: Two cars are 310miles away and traveling toward eachother. One travels 8 mph faster than the other. The cara meet at 2.5 hours. Find rhe speed of eaxh car

Algebra ->  Customizable Word Problem Solvers  -> Travel -> SOLUTION: Two cars are 310miles away and traveling toward eachother. One travels 8 mph faster than the other. The cara meet at 2.5 hours. Find rhe speed of eaxh car      Log On

Ad: Over 600 Algebra Word Problems at edhelper.com


   



Question 710510: Two cars are 310miles away and traveling toward eachother. One travels 8 mph faster than the other. The cara meet at 2.5 hours. Find rhe speed of eaxh car
Answer by josmiceli(19441) About Me  (Show Source):
You can put this solution on YOUR website!
Think of one car as standing still and the other
approaching at the sum of their speeds
Let +s+ = the speed of the slower car in mi/hr
+s+%2B+8+ = the speed of the faster car in mi/hr
------------------
+310+=+%28+s+%2B+s+%2B+8+%29%2A2.5+
+310+=+%28+2s+%2B+8+%29%2A2.5+
+310+=+5s+%2B+20+
+5s+=+290+
+s+=+58+
+s+%2B+8+=+66+
Their speeds are 58 mi/hr and 66 mi/hr