SOLUTION: If a new machine can make one toy in two hours and an old machine can make one toy in 5 hours how long would it take them to make one toy together?

Algebra.Com
Question 782518: If a new machine can make one toy in two hours and an old machine can make one toy in 5 hours how long would it take them to make one toy together?
Answer by josmiceli(19441)   (Show Source): You can put this solution on YOUR website!
Add their rates of making toys
( 1 toy ) / ( 2 hrs ) + ( 1 toy ) / ( 5 hrs ) = ( 1 toy / t hrs )

Multiply both sides by




It will take them 1 hr and 26 min

RELATED QUESTIONS

I have been struggling with this for the last hour... Three machines are twisting... (answered by Alan3354,josmiceli)
a new machine can make 10000 cans three times faster than an older one. With both... (answered by ankor@dixie-net.com)
A motor cycle helmet forming machine can make 100 helmets in a day. If the first machine... (answered by richwmiller)
If a new machine can make 10,000 aluminum cans three times faster than an older machine. (answered by richwmiller)
Having problems pulling out an equation from: An office has an old copying machine and a (answered by scott8148)
an office has an old copying machine and a new one. Working together, it takes both... (answered by ankor@dixie-net.com)
An office has an old copying machine and a new one. Working together, it takes both... (answered by richwmiller)
An office has an old copying machine and a new one. Working together it takes both... (answered by checkley77)
First I just hope I'm in the right section, I have been trying to figure out how to solve (answered by drk,edjones,richwmiller)