SOLUTION: Jill is 16 miles away from joe. both begin to walk toward each other at the same time. Jill is walking 2.5 miles per hour. they meet in 4 hours. how fast is hoe walking?

Algebra ->  Customizable Word Problem Solvers  -> Travel -> SOLUTION: Jill is 16 miles away from joe. both begin to walk toward each other at the same time. Jill is walking 2.5 miles per hour. they meet in 4 hours. how fast is hoe walking?      Log On

Ad: Over 600 Algebra Word Problems at edhelper.com


    

Question 1143020: Jill is 16 miles away from joe. both begin to walk toward each other at the same time. Jill is walking 2.5 miles per hour. they meet in 4 hours. how fast is hoe walking?
Answer by ikleyn(53765) About Me  (Show Source):
You can put this solution on YOUR website!
.

            You can solve the problem using equation/equations. 


Let x is Joe's walking rate in miles per hour, now unknown.


Then you have this "distance" equation


    4*2.5 + 4x = 16  miles,


saying that the total distance is the sum of partial distances.


     10   + 4x = 16,

     4x        = 16 - 10 

     4x        = 6

      x        = 6%2F4 = 1.5 miles per hour.


ANSWER.  Joe4's walking rate is 1.5 miles per hour.


            You also can solve the problem mentally, without using equation/equations. 


In 4 hours, Jill walked  4*2.5 = 10 miles.


Hence, Joe's part was only  16 - 10 = 6 miles.


So, Joe walked  6 miles in 4 hours.


It means that Joe's rate is  6%2F4 = 1.5 miles per hour.


You get the same answer.