SOLUTION: A certain screw machine can produce a box of parts in 3.3h . A new machine is to be ordered having a speed such that both machines working together would produce a box of parts in

Question 1055671: A certain screw machine can produce a box of parts in 3.3h . A new machine is to be ordered having a speed such that both machines working together would produce a box of parts in 1.4h . How long would it take the new machine alone to produce a box of parts?
Answer by Fombitz(32388) (Show Source): You can put this solution on YOUR website!
Rate*Time=Output
For the first machine,

For the machines together,

Substituting,

So then,

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