adenhuang2006p29ar5 adenhuang2006p29ar5

11-01-2019
Mathematics

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Of 560 marbles in a bag, 65% are red and the rest are blue. After 28 red marbles are replaced with blue ones, how many blue marbles need to be added to the bag so that the 65% of all marbles are blue?

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bandrew23 bandrew23

11-01-2019

Answer:

140

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