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3 February, 11:55

On a buying trip in Los Angeles Rosario Perez ordered 120 pieces of jewelry a number of bracelets at $8 each and a number of necklaces at $11 each. She wrote a check for $1080 to pay for the order. How many bracelets and how many necklaces did Rosaria purchase?

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  1. 3 February, 12:12
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    Two equation system

    80 bracelets

    40 necklaces

    Step-by-step explanation:

    x+y=120

    8x+11y=1080

    x=120-y

    8 (120-y) + 11y=1080

    x=120-y

    960-8y+11y=1080

    x=120-y

    3y=120

    x=120-y

    y=40

    x=120-40

    y=40

    x=80

    y=40
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