|
Question 353830: two cars start from the same place and travel in opposite directions. One runs at an average rate which is 24 kilometers per hour faster than the other.find their rates if after 6hours,they are 702 km apart.
Answer by stanbon(75887)   (Show Source):
You can put this solution on YOUR website! two cars start from the same place and travel in opposite directions. One runs at an average rate which is 24 kilometers per hour faster than the other.find their rates if after 6hours,they are 702 km apart.
------------------------
slower car rate: x km/h
faster car rate: x+24 km/h
------
They are separating at a rate of x + x+24 = 2x+24 km/h
----
Equation:
time*rate = distance
6(2x+24) = 702 km/h
2x+24 = 117
2x = 93
x = 46.5 km/h (slower car rate)
x+24 = 60.5 km/h (faster car rate)
========================
Cheers,
Stan H.
|
|
|
| |
