SOLUTION: A small airplane flies 750 miles with an average speed of 250 miles per hour. 1.75 hours after the plane leaves, a Boeing 747 leaves from the same point. Both planes arrive at the

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Question 921782: A small airplane flies 750 miles with an average speed of 250 miles per hour. 1.75 hours after the plane leaves, a Boeing 747 leaves from the same point. Both planes arrive at the same time; what was the average speed of the 747? I can't figure out how to set up the problem..
Found 2 solutions by josgarithmetic, MathTherapy:
Answer by josgarithmetic(39625) About Me  (Show Source):
You can put this solution on YOUR website!
RT=D, basic rule for uniform travel rates.

Setup a data table. Variables implied.

__________________rate__________time_________distance
PLANE_____________250___________t+1.75_______750
747JET____________r_____________t____________750

Answer by MathTherapy(10555) About Me  (Show Source):
You can put this solution on YOUR website!

A small airplane flies 750 miles with an average speed of 250 miles per hour. 1.75 hours after the plane leaves, a Boeing 747 leaves from the same point. Both planes arrive at the same time; what was the average speed of the 747? I can't figure out how to set up the problem.. 


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