SOLUTION: Jill is 27.5 km away from Joe. Both begin walking toward each other at the same time. Jill walks at 2.5 km per hour. If they meet in 5 hours, how fast is Joe walking?
x + y = 2
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Question 274907: Jill is 27.5 km away from Joe. Both begin walking toward each other at the same time. Jill walks at 2.5 km per hour. If they meet in 5 hours, how fast is Joe walking?
x + y = 27.5
x(2.5)-y=5 (??)
Answer by edjones(8007) (Show Source): You can put this solution on YOUR website!
st=d
Let j=Joe's speed & t=5
5(2.5+j)=27.5
12.5+5j=27.5
5j=15
j=3 km/h
.
Ed
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