SOLUTION: A truck travels for 4 hours at an average speed of 43 miles per hour. How much longer must the truck travel at an average speed of 59 miles per hour so that the average speed for t

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Question 1152906: A truck travels for 4 hours at an average speed of 43 miles per hour. How much longer must the truck travel at an average speed of 59 miles per hour so that the average speed for the total trip will be 50 miles per hour? (Round your answer to one decimal place.)
Answer by greenestamps(13198) About Me  (Show Source):
You can put this solution on YOUR website!


Total distance: 43(4)+59(x)
Total time: x+4
Average speed = total distance / total time

%2843%284%29%2B59x%29%2F%28x%2B4%29+=+50
172%2B59x+=+50x%2B200

I leave a little bit of the work for you to finish....