SOLUTION: My friend Amie and I just finished a meal at in n out burger. She leaves the restaurant and drives at a constant rate of 65 mph. 5 minutes later I leave the restaurant. We went to

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Question 1054365: My friend Amie and I just finished a meal at in n out burger. She leaves the restaurant and drives at a constant rate of 65 mph. 5 minutes later I leave the restaurant. We went to meet at an outlet mall 30 miles down the road. How fast must I drive if we both want to arrive at the mall at the same time? Is it possible, practically speaking? Explain.
Found 2 solutions by Fombitz, stanbon:
Answer by Fombitz(32388) About Me  (Show Source):
You can put this solution on YOUR website!
Since she drove at 65 mph, you'll have to drive even faster to cover the same distance in less time.
R%2At=d
R%2A%2825%2F60%29=30
R=1800%2F25
R=72mph
Not sure about the speed limits near you but that's a fast rate of speed.

Answer by stanbon(75887) About Me  (Show Source):
You can put this solution on YOUR website!
My friend Amie and I just finished a meal at in n out burger. She leaves the restaurant and drives at a constant rate of 65 mph. 5 minutes later I leave the restaurant. We went to meet at an outlet mall 30 miles down the road. How fast must I drive if we both want to arrive at the mall at the same time? Is it possible, practically speaking? Explain.
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Friend DATA:
rate = 65 mph ; dist = 30 miles ; time = d/r = 30/65 = 6/13 hr
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Other DATA:
dist = 30 miles ; time = (6/13)hr - (1/12)hr = (72-13)/(12*13) = 0.378 hr
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Ans: rate = d/t = 30/0.378 = 79.37 mph
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Cheers,
Stan H.
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