the ratio of blue marbles to white marbles in a bag is 4 to 5 . at this rate, how many blue marbles are there if there are 15 white marbles

asked May 6, 2016 196k views

1 vote

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1 vote

4/5 = B/W = B/15
B = 4*15/5 = 12

Cfreear answered May 9, 2016

7.1k points

5 votes

4:5 = x : 15
let x be blue marbles
4(15) = 5x
x = 12
therefore 12 blue marbles

Maria Ivanova answered May 11, 2016

8.0k points

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