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?

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) (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        =  = 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   = 1.5 miles per hour.


You get the same answer.

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