SOLUTION: It takes 8 hours for car A to travel 500 km. How many hours will car B travel 500 km if its speed is 50 less than twice the average speed of car A?

Algebra ->  Coordinate Systems and Linear Equations -> SOLUTION: It takes 8 hours for car A to travel 500 km. How many hours will car B travel 500 km if its speed is 50 less than twice the average speed of car A?      Log On


   

Question 980980: It takes 8 hours for car A to travel 500 km. How many hours will car B travel 500 km if its speed is 50 less than twice the average speed of car A?
Answer by macston(5194) About Me  (Show Source):
You can put this solution on YOUR website!
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Speed of car A=500km/8 hrs=62.5 km/hr
Speed of car B=2(62.5km/hr)-50=75km/hr
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To travel 500km at 75km/hr:
500km/(75km/hr)=6.67 hours
ANSWER: Under the given conditions, car B will travel 500 kilometers in 6 hours and 40 minutes.