Answers

2015-01-08T20:55:39+05:30
5:7 , because the number of marbles are 12 and red are 5 so blue marbles=12-5=7  so the ratio of red and blue marbles is 5:7
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  • Brainly User
2015-01-08T20:55:58+05:30
Total marbles= 12
Red marbles= 5/12 or 5
Blue marbles= 1 (12/12) - 5/12
= 7/12 or 7 
Ratio= 5: 7
1 5 1
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