SOLUTION: Melvin notices that his wife, Giselle, left for the airport without her favorite book. Giselle drives 40 miles per hour and has a 15-minute head start. If Melvin (with the book) dr
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Question 525292: Melvin notices that his wife, Giselle, left for the airport without her favorite book. Giselle drives 40 miles per hour and has a 15-minute head start. If Melvin (with the book) drives 60 miles per hour and the airport is 45 miles away, will he catch her before she arrives at the airport.
Answer by solver91311(24713) (Show Source): You can put this solution on YOUR website!
In the 15 minutes head-start, Giselle goes 40 miles per hour times 1/4 hour = 10 miles. Melvin is going 20 miles per hour faster, so he makes up the 10 mile difference in 10 miles divided by 20 miles per hour, or 1/2 hour. In that half hour, Giselle goes an additional 1/2 times 40 miles per hour = 20 miles. In total, by the time Melvin catches up, she will have travelled 30 miles, 15 miles short of the 45 mile distance to the airport. That is if Melvin doesn't stop at his therapist for a session to deal with his self-esteem issues caused by being teased as a kid for having such a goofy name.
John
My calculator said it, I believe it, that settles it
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