SOLUTION: two cars leave a toewn at the same time going in the same direction on the same road.one travels 32mi/h and the other travels 47mi/h.in how many hours will they be 69 miles apart?
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Question 118809: two cars leave a toewn at the same time going in the same direction on the same road.one travels 32mi/h and the other travels 47mi/h.in how many hours will they be 69 miles apart? Answer by ptaylor(2198) (Show Source):
You can put this solution on YOUR website! Distance(d) equals rate(r) times Time(t) or d=rt; r=d/t and t=d/r
Let t=number of hours that has elapsed when they are 69 miles apart
In t hours car-1 travels 32*t miles
In t hours car-2 travels 47*t miles
Now we are told that:
47t-32t=69 collect like terms
15t=69 divide both sides by 15
t=4.6 hr------------------------------ans
CK
47*4.6-32*4.6=69
216.2-147.2=69
69=69
