A collection of stamps consists of 22¢ stamps and 40¢ stamps. The number of 22¢ stamps is three more than four times the number of 40¢ stamp

Question

A collection of stamps consists of 22¢ stamps and 40¢ stamps. The number of 22¢ stamps is three more than four times the number of 40¢ stamps. The total value of the stamps is $8.34. Find the number of 22¢ stamps in the collection

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Ladonna 4 years 2021-08-25T05:16:31+00:00 1 Answers 8 views 0

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  1. Euphemia
    0
    2021-08-25T05:18:27+00:00
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    Answer:

    27

    Step-by-step explanation:

    Let :

    Number of 40¢ = x

    Number of 22¢ = 4x + 3

    Total stamp value = $8.34 = (8.34 * 100) = 834¢

    40¢x + 22¢(4x + 3) = 834¢

    40x + 88x + 66 = 834

    128x = 834 – 66

    128x = 768

    x = 768 / 128

    x = 6

    Number of 22¢ stamp:

    4(6) + 3 = 24 + 3 = 27

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