Question 676495: two cars leave the same point at the same time one car is traveling 1 1/3 times as fast as the other after 3 hrs they are 45 miles apart. what speed is each car going?
Answer by jpvn2015(54)   (Show Source):
You can put this solution on YOUR website! 60 mph and 45 mph.
Here's how I came up with that answer. First, realize that 45 miles over a period of 3 hours, is equivalent with 15 miles over 1 hour. Thus, one car was going 15 mph faster than the other car and was also going 4/3 its speed.
60 and 45 meet those criteria perfectly, as 60 is 15 greater than 45, and over a period of 3 hours, the car going 60mph will be 45 miles further on the road than the car going 45 mph. Plus, 60 is 1 1/3 greater than 45, so it verifies that this is indeed the correct answer.
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