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Ciara has a bag of 50 colored marbles. There are yellow, green, and white marbles. She empties the bag, sorts the marbles, and counts11 yellow marbles and 19 green marbles. She wants to write a ratio of the number of green marbles to the number of white marbles. How can she find the number ofwhite marbles without counting them?

Ciara Has A Bag Of 50 Colored Marbles There Are Yellow Green And White Marbles She Empties The Bag Sorts The Marbles And Counts11 Yellow Marbles And 19 Green M class=

Sagot :

The total number of marbles is, 50.

11 yellow marbles

19 green marbles

x be the number of white marbles.

Without counting, x can be calculated as,

[tex]\begin{gathered} 11+19+x=50 \\ x=50-11-19=20 \end{gathered}[/tex]

Therefore the ratio of green marbles to white marbles is,

[tex]\frac{G}{W}=\frac{19}{20}[/tex]

Thus option B is correct.

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