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Today, 02:52

Mark and Don are planning to sell each of their marble collections at a garage sale. If Don has 7 mo

than 3 times the number of marbles Mark has, how many does each boy have to sell if the total numbe

of marbles is 103?

Mark has Number

marbles to sell.

Don has Number

marbles to sell.

+2
Answers (2)
  1. Today, 03:09
    0
    Mark has 24

    Don has 79
  2. Today, 06:44
    0
    Mark has 24

    Don has 79

    Step-by-step explanation:

    Let x = marbles mark has

    don has 3x+7

    Together they have 103

    mark + don = 103

    x + (3x+7) = 103

    Combine like terms

    4x+7 = 103

    Subtract 7

    4x = 96

    Divide by 4

    x = 96/4

    x = 24

    Mark has 24

    Don has 103 - 24

    Done has 79
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