SOLUTION: At the beginning of a walk Roberto and Juanita are 7.7 miles apart. If they leave at the same time and walk in the same direction, Roberto overtakes Juanita in 11 hours. If they
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-> SOLUTION: At the beginning of a walk Roberto and Juanita are 7.7 miles apart. If they leave at the same time and walk in the same direction, Roberto overtakes Juanita in 11 hours. If they
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Question 448811: At the beginning of a walk Roberto and Juanita are 7.7 miles apart. If they leave at the same time and walk in the same direction, Roberto overtakes Juanita in 11 hours. If they walk towards each other, they meet in 1 hour what are their speeds? Answer by mananth(16946) (Show Source):
You can put this solution on YOUR website! Roberto x------ speed
Jaunita ------------y speed
x+2y=1 .............1
1x-1y=0.7.............2
Eliminate y
multiply (1)by 1
Multiply (2) by -2
x+2y= 1
-2x+2y=-1.4
Add the two equations
-1x=-0.4
/-1
x=0.40
plug value of x in (1)
1x+2y=1
0.4+2y=1
2y=1-0.4
2y=0.6
y=0.30
