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college algebra

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A paint-mixing machine has 2 inlet pipes. One takes 1 hour less than the other to fill the tank. Together they fill the tank in 3 hours. How long would it take each of them alone to fill the tank?

Thank you!!!

  • college algebra -

    time=1/(1/timefast + 1/(timefast+1)

    3(1/timefast + 1/(timefast+1))=1

    solve for timefast. For the other unit, add one hour.

    multiply tf(tf+1) to each side to get started.

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