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stepladder [879]
2 years ago
6

Mary lives 1365 miles from Brady. Brady drives at a constant rate of 60 mph and Mary travels at a constant rate of 45 mph. If th

ey start driving toward each other at the same time on the same road, how many hours will it take them to meet?
A. 10
B. 11
C. 12
D. 13
Mathematics
2 answers:
storchak [24]2 years ago
8 0

Let m= distance Mary drives; let b=distance Brady drives. Then m+b=1365:


(45 mph)(t) + (60 mph)(t) = 1365 mi


Then (105 mph)(t) = 1365 mi, and


1365 mi

t = ----------------- = 13 hours: time req'd for the 2 to meet.

105 mph

Stels [109]2 years ago
7 0

Answer: 13 hours

Step-by-step explanation:

60 + 45 = 105

1365 / 105 = 13

Hope this helps you! :)

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