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5 November, 12:11

a business executive bought 40 stamps for $12.08 there were some 32 Cent stamps and some 23-cent stamps how many of each kind did the executive Buy

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  1. 5 November, 15:59
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    x*.32 + (40-x) *.23 = 12.08

    distribute

    .32x + 9.20 -.23x = 12.08

    combine like terms

    .09x + 9.20 = 12.08

    subtract 9.20

    .09x = 2.88

    divide by. 09

    x=32

    40-32 = 8

    He bought 32 32cent stamps and 8 23 cent stamps
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