In lowest terms, it is 4 to 3.
8:7
18 boys and 12 girls
In a class of 30, if there are 12 boys then there must be 18 girls. This would make the ratio: 18:12 or 3:2 (girls:boys)
3+7=10 (3 and 7 are both ratio numbers) 420/10=42 (10 is the sum of both ratio) 3x42=126 girls (3 is ratio of girls) 7x42=294 boys (7 is ratio of boys)
The ratio is 7 to 8
8:7
18 boys and 12 girls
If the ratio of boys to girls at summer camp is 10:1, and there are 30 boys, you can set up the ratio equation: ( \frac{30}{g} = 10 ), where ( g ) is the number of girls. Solving for ( g ) gives ( g = \frac{30}{10} = 3 ). Therefore, there were 3 girls at the camp.
In a class of 30, if there are 12 boys then there must be 18 girls. This would make the ratio: 18:12 or 3:2 (girls:boys)
heya...... ratio is 30:70
If the ratio of boys to girls is 3:7, this means that for every 3 boys, there are 7 girls. To find out how many boys there are, you would need to divide the total number of children by the sum of the parts in the ratio (3 + 7 = 10) and then multiply that result by the number of boys' parts in the ratio (3). So, if there are 30 children in total, there would be 9 boys (30 divided by 10, times 3).
2 to 3
3+7=10 (3 and 7 are both ratio numbers) 420/10=42 (10 is the sum of both ratio) 3x42=126 girls (3 is ratio of girls) 7x42=294 boys (7 is ratio of boys)
13 to 17
The ratio is 7 to 8
There are 6 girls and 24 boys. Algebraic solution: Let G = number of girls, B= number of boys G+B = 30 B = 4G Substitute to form G + 4G = 30 5G = 30 G = 6 B = 4G = 4 x 6 = 24
the ratio is 3:5 what you do is make a fraction out of it (18/30) and then reduce and put a colon in it