SOLUTION: Stan can load his truck in 24 min. If his brother helps him, it takes them 15 min to load the truck. How long does it take Stan's brother alone?
Please show work. How would I se
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Question 133988: Stan can load his truck in 24 min. If his brother helps him, it takes them 15 min to load the truck. How long does it take Stan's brother alone?
Please show work. How would I set this up in a chart? Thanks!
Answer by checkley71(8403) (Show Source): You can put this solution on YOUR website!
24x/(24+x)=15
24x=15(24+x)
24x=360+15x
24x-15x=360
9x=360
x=360/9
x=40 min. for his brother working alone.
proof:
24*40/(24+40)=15
960/64=15
15=15
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