jessicastyles1 jessicastyles1

21-03-2017
Mathematics

contestada

Two boys who live 14 miles apart start at noon to walk toward each other at rates of 3 mph and 4 mph respectively. In how many hours will they meet? 1 hr 2 hr 3 hr

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AddisonM13 AddisonM13

21-03-2017

Since you have the answers given, just track their walking.
After one hour, one guy has covered 3mi and the other 4mi, which is in total 7, not 14
After 2 hours, one guy has covered 6mi and the other 8mi, which is 14mi

The algebraic way would be:
3x +4x = 14 *x being the hour
7x = 14
x =2

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bossy634 bossy634

15-02-2019

best Answer

I think the answer is 2 hour

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