SOLUTION: Two people are 3 � miles apart and walking towards each other. Their uniform walking rates differ by 1 mph. They will meet in � hour. What is the uniform rate of slower walker? How

Question 187902: Two people are 3 � miles apart and walking towards each other. Their uniform walking rates differ by 1 mph. They will meet in � hour. What is the uniform rate of slower walker? How much of the distance will he/she travel?
Answer by ptaylor(2198) (Show Source): You can put this solution on YOUR website!

Distance(d) equals Rate(r) times Time(t) or d=rt; r=d/t and t=d/r
Let r=rate of slower walker
Then r+1=rate of faster walker
Distance slower walker walks=r*(1/2)
Distance faster walker walks=(r+1)*(1/2)
Now the above two distances must add up to 3.5 mi, so:
0.5r+0.5(r+1)=3.5 get rid of parens
0.5r+0.5r+0.5=3.5 subtract 0.5 from each side
0.5r+0.5r+0.5-0.5=3.5-0.5 collect like terms
r=3 mph----------------------rate of the slower walker
In 1/2 hour the slower walker will walk (1/2)*3=1.5 mi
r+1=3+1=4 mph-----------------rate of faster walker
CK
0.5*3+0.5*4=3.5
1.5+2=3.5
3.5=3.5

Hope this helps---ptaylor

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