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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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):
