Question 980007: Hi can someone please help me with my assignment? Please. So, here's the question...
'2 hikers, Arione and Jairus, started from the same place at the same time and walked towards Lipa Cty, which is 90 km away from their place. Arione walked 1 km/hr faster than Jairus and reached Lipa 1 hour before him. Find the rate of each hiker.'
Answer by josgarithmetic(39616)   (Show Source):
You can put this solution on YOUR website! Two hikers, Arione and Jairus, started from the same place at the same time and walked towards Lipa Cty, which is d km away from their place. Arione walked k km/hr faster than Jairus and reached Lipa h hour before him. Find the rate of each hiker.'
Let t be the time that Arione needed to reach destination at distance d.
Let r be Jairus's speed or rate.
Let d be the destination distance, d=90.
k=1,
h=1
_________________rate____________time____________distance
Arione___________r+k______________t_______________d
Jairus____________r______________t-h______________d
Unknown variables are r and t.
You may be tempted to immediately form RT expressions for d and equate the terms. Do not.
You can use one of the equations to find an expression for t, and substitute into the other equation, and solve for the value of r.
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