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29 July, 05:43

The ratio of blue marbles to red marbles in a bucket is 63 to 45. If there are 648 marbles, how many marbles are blue and how many are red?

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  1. 29 July, 08:06
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    B:R

    63:45

    63+45=108

    to find the number of blue marbles:

    63/108 * 648 = 378 blue marbles.

    to find the number of red marbles:

    45/108 * 648 = 270 red marbles

    and to check your answer,

    270+378=648
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