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A bag contains yellow, green, blue, and white marbles.  The ratio of yellow, green, blue, and white marbles is 1:2:3:4.  If the bag contains 180 marbles, then how many blue marbles are there?

 Jun 24, 2023
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We need to add all the ratio numbers which equal 10. 

 

10x = 180

x = 18

Blue = x multiply 3

 Jun 26, 2023

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