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6 July, 17:17

A bag contains white marbles and green marbles, 52 in total. The number of white marbles is 3 less than 4 times the number of green marbles. How many white marbles are there?

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Answers (2)
  1. 6 July, 17:19
    0
    Step-by-step explanation:

    w + g = 52

    w = 4g - 3

    (4g - 3) + g = 52

    5g - 3 = 52

    5g = 52 + 3

    5g = 55

    g = 55/5

    g = 11 ... there are 11 green marbles

    w + g = 52

    w + 11 = 52

    w = 52 - 11

    w = 41 <== = there are 41 white marbles
  2. 6 July, 17:38
    0
    white marbles = 41

    Step-by-step explanation:

    Set up the equation

    52 = (4g-3) + g

    g = green marbles

    white marbles are represented by 4g-3

    these are added together to equal 52

    solve for g, combine like terms

    52 = 5g - 3

    g = 11

    4g - 3 = white marbles

    (4x11) - 3 = white marbles = 41
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