SOLUTION: Fred begins walking toward John's house at 3 mi/h. John leaves his house at the same time and walks toward Fred's house on the same path at a rate of 2 mi/h. How long will it be

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Question 171100This question is from textbook PRENTICE HALL MATHEMATICS
: Fred begins walking toward John's house at 3 mi/h. John leaves his house at the same time and walks toward Fred's house on the same path at a rate of 2 mi/h. How long will it be before they meet if the distance between the houses is 4 miles? This question is from textbook PRENTICE HALL MATHEMATICS

Answer by scott8148(6628) About Me  (Show Source):
You can put this solution on YOUR website!
they "close" the distance between them at a rate of 3+2 or 5mph

t=d/r __ t=4/5 __ t=.8hr or 48min