Marisol and Mimi walked the same distance from their school to a shopping mall. Marisol walked 2 miles per hour, while Mimi left 1 hour later and walked 3 miles per hour. If they reached the mall at the same time, how far from the mall is their school?

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Answer 1 · 2017-06-23T23:12:30

#6# miles.

# d = t xx 2 mph#

# d = (t -1) xx 3 mph #

The distance to the mall is the same so the two times can be set equal to each other.

# t xx 2mph = t-1 xx 3 mph#

# 2t = 3t - 3 #

Subtract 2t and add 3 to both sides of the equation

# 2t- 2t +3 = 3t -2t - 3 + 3# This gives:

# 3 = t #

the time equals three hours.

# d = 3 h xx 2mph #

# d = 6 # miles.