SOLUTION: Yes I know the answer but cannot come up with the two equations for it.
Two cars leave Salt Lake City, traveling in opposite directions. One car travels at a speed of 80 km/h and
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Two cars leave Salt Lake City, traveling in opposite directions. One car travels at a speed of 80 km/h and
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Question 1046348: Yes I know the answer but cannot come up with the two equations for it.
Two cars leave Salt Lake City, traveling in opposite directions. One car travels at a speed of 80 km/h and the other 96 km/h. In how many hours will they be 528 km apart?
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Yes I know the answer but cannot come up with the two equations for it.
Two cars leave Salt Lake City, traveling in opposite directions.
One car travels at a speed of 80 km/h and the other 96 km/h.
In how many hours will they be 528 km apart?
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80*t + 96*t = 528.
The first addend is the distance covered by the 1-st car.
The second addend is the distance (in the opposite direction) covered by the 2-nd car.
Solve it:
(80+96)*t = 528.
176*t = 528.
t = = 3 hours.
Answer. 3 hours.
