Question 923757
A car and a truck start at the same point and travel in opposite directions. The car travels 8 mi per hour faster than the truck. After 3 hours the car and the truck are 354 mi apart. Find the average speed of the car and truck.
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Truck rate:: x mph
Car rate:::: x + 8 mph
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Equations::
Since they are traveling in opposite directions,
3(x + x+8) = 354 miles
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6x + 24 = 354
6x = 330
x = 55 mph (truck speed)
x+8 = 61 mph (car speed)
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Cheers,
Stan H.
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