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algerbra

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AN ORCHESTRA CONSISTS OF STRINGS INSTRAMENTS AND WIND INSTIMENTS IN A RATIO OF 9 TO 4. THERE ARE 91 STRINGS AND WIND INSTRUMENTS IN THE ORCHESTRA. hOW MANY STRING INSTRUMENTS ARE THERE? how many wind instruments? Use a system of equation to model each situation. solve by any method.

  • algerbra -

    let the number of string instruments be 9x
    let the number of wind instruments be 4x

    (notice 9x:4x = 9:4)

    then 9x + 4x = 91

    I will let you finish it.

  • algerbra -

    7x

  • algebra -

    63 wind and 28 string

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