Question: Set up appropriate equations and solve the given stated problems. All numbers are accurate to at least two significant digits. One automatic packaging machine can

Set up appropriate equations and solve the given stated problems. All numbers are accurate to at least two significant digits.

One automatic packaging machine can package 100 boxes of machine parts in 12 min, and a second machine can do it in 10 min. A newer model machine can do it in 8.0 min. How long will it take the three machines working together?

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