mathneeder mathneeder

16-10-2018
Mathematics

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A bag contains yellow marbles and red marbles, 31 in total. The number of yellow marbles is 1 less than 3 times the number of red marbles. How many yellow marbles are there?

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middlebrotherrandel middlebrotherrandel

17-10-2018

There are 15 yellow marbles and 16 red marbles

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