SOLUTION: At 3pm Mark left Pittsburg and drove towards Cleveland, 208 km away. At 3:30 pm Carole left Cleveland and headed towards Pittsburg, driving 2 km/h slower than MArk. If there cars p

Question 1012481: At 3pm Mark left Pittsburg and drove towards Cleveland, 208 km away. At 3:30 pm Carole left Cleveland and headed towards Pittsburg, driving 2 km/h slower than MArk. If there cars passed each other at 4:30, how fast was each driving
Answer by josmiceli(19441) (Show Source): You can put this solution on YOUR website!
How much was Mark's head start?
Let = Marks rate in km/hr
Let = Mark's head start in km
hr

-----------------
Start a stopwatch when Carole leaves Cleveland
Let = distance Carole travels until they meet
= Carole's rate in km/hr
From 3:30 to 4:30 is hr, so
Carole's equation is:

-------------------
Mark's equation:

km/hr
and
km/hr
Mark's rate was 84 km/hr
Carole's rate was 82 km/hr
------------------------
check:
Carole's distance:

km
Mark must have traveled km
in hrs at km/hr

OK
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