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2 September, 08:37

A bag contains green marbles and blue marbles, 44 in total. The number of green marbles is 5 more than 2 times the number of blue marbles. How many green marbles are there?

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  1. 2 September, 09:03
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    31 green marbles.

    Step-by-step explanation:

    Let G = # of green marbles.

    Let B = # of blue marbles.

    G + B = 44

    G = 5 + 2*B

    Solve by substitution

    (5 + 2*B) + B = 44

    5 + 3B = 44

    3B = 39

    B = 13

    so G = 31 green marbles
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