SOLUTION: Josh can deliver his newspapers in 30 minutes. If Amber helps him, it takes 12 minutes working together. How long would it take amber working by herself? I think that the minutes h
Algebra.Com
Question 260617: Josh can deliver his newspapers in 30 minutes. If Amber helps him, it takes 12 minutes working together. How long would it take amber working by herself? I think that the minutes have to be put into a fraction of the number over 60 but i am not sure..
Answer by nerdybill(7384) (Show Source): You can put this solution on YOUR website!
Josh can deliver his newspapers in 30 minutes. If Amber helps him, it takes 12 minutes working together. How long would it take amber working by herself?
.
Let x = minutes it takes Amber to deliver by herself
then
12(1/30 + 1/x) = 1
Multiply both sides by 30x:
12(x + 30) = 30x
12x + 360 = 30x
360 = 18x
360/18 = x
20 minutes = x
RELATED QUESTIONS
trent can deliver his newspapers in 30 minutes. it takes lois 20 minutes to do the same... (answered by ptaylor)
Trent can deliver his newspapers in 30 minutes. It takes Lois 20 minutes to do the same... (answered by ptaylor)
Trent can deliver his newspapers in 30 minutes. It takes Lois 20 minutes to do the same... (answered by josmiceli)
trent can deliver his newspapers in 30 minutes. It takes Lois 60 minutes to do the same... (answered by checkley79)
Trent can deliver his newspapers in 20 minutes. It takes Lois 30 minutes to do the same... (answered by josgarithmetic,Edwin McCravy,Alan3354)
Amiri can deliver his newspapers in 86 minutes. It takes Horus 64 minutes to do the same... (answered by ankor@dixie-net.com)
Amiri can deliver his newspapers in 83 minutes. it takes Horus 65 minutes to do the same... (answered by Alan3354)
Amiri can deliver his newspapers in
80 minutes. It takes Horus
63 minutes to do the... (answered by josgarithmetic)
It takes one boy 30 minutes to deliver his newspapers. It takes another boy 20 minutes to (answered by checkley71)