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23 September, 00:17

One day a store sold 32 sweatshirts, white ones cost $11.95 and yellow ones cost $11.50. in all, $373.40 worth of sweatshirts were sold. how many of each color were sold?

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  1. 23 September, 00:39
    0
    Let

    W=white

    Y=yellow

    11.5 (32-w) + 11.95w=373.40

    Solve for w

    W=12

    Y=32-12=20
  2. 23 September, 02:37
    0
    32=w+y, w=32-y ...

    11.95w+11.5y=373.4, using w from above gives us:

    11.95 (32-y) + 11.5y=373.4

    382.4-11.95y+11.5y=373.4

    -.45y=-9

    y=20

    So 20 yellow and (32-20) 12 white shirts were sold.
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