Problema Solution
two cars from the same place traveling in the opposite directions. one car travels 4 miles per hour faster than the other car. find their speed if after 5 hours they are 520 miles apart.
Answer provided by our tutors
let 'x' represent the slower car, then 'x+4' represents the faster car
the equation represents their combined speed after they are 520 miles apart from each other:
5(x+x+4)=520
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using 'x' to solve for the speed of the slower car:
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x=50
50+4 = 54
the slower car is 50 mph, the faster car is 54 mph