SOLUTION: a plane has 7 hours to reach a target and come back to base.it flies out to the target at 480 miles per hour and returns on the same route at 640 miles per hour.how many miles fr

Question 706144: a plane has 7 hours to reach a target and come back to base.it flies out to the target at 480 miles per hour and returns on the same route at 640 miles per hour.how many miles from the base is the target.
Answer by josgarithmetic(39799) (Show Source): You can put this solution on YOUR website!
Trip__________speed____________time_______________distance
reaching______480______________( d/480 )_______________d
returning_____640______________( d/640 )_______________d
Total Time______________________7_________________

Find d.
Going to target and returning takes 7 hours combined.

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