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10 December, 05:05

Mabel has a total of 54 beads. Some beads are black and some are white. The ratio of the number of black beads to the number of white beads is 7:2. How many more black beads than white beads?

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  1. 10 December, 05:06
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    7x+2x = 54

    9x = 54

    X=6

    Black 7 (6) = 42

    White 2 (6) = 12

    =54
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