It is already in its simplest ratio because 17 is a Prime number but if it were 7 boys to 21 girls then the ratio would be 1 to 3
Girls - 21 letters/minute Boys - 17 letters/minute
B/G = 4/3 so 3B = 4G B+G = 21 Multiply by 3: 3B+3G = 63 But 3B = 4G so 4G+3G = 63 ie 7G = 63 so that G = 9 So B+G=21 means B = 12 3 more boys so B' = 12+3 = 15 1 more girl so G' = 9+1 = 10 So new ratio = B'/G' = 15/10 = 3/2 or 3 to 2
7 boys
12/21 or 4/7
Oh, dude, the ratio of 105 to 85 is 21:17. It's like dividing both numbers by their greatest common factor, which in this case is 5. But hey, who's counting, right?
The ratio of girls to boys is 21/14 = 3/2 = 1.5 . The ratio of boys to girls is 14/21 = 2/3 = 0.66 .
The ratio of girls to boys in Charlotte's class is 3:2. This is found by dividing the number of girls by the number of boys to get 21/14 = 3/2.
The ration of girls to boys is 21:6To simplify this divide both numbers by 3 = 7:2
87
21 boys + 14 girls = 35 studentsThis also works for math and social studies classes.
Girls - 21 letters/minute Boys - 17 letters/minute
There are 21 boys. Boys = 30% Girls = 70% = 49 40/.7 = 70 70 - 49 = 21
B/G = 4/3 so 3B = 4G B+G = 21 Multiply by 3: 3B+3G = 63 But 3B = 4G so 4G+3G = 63 ie 7G = 63 so that G = 9 So B+G=21 means B = 12 3 more boys so B' = 12+3 = 15 1 more girl so G' = 9+1 = 10 So new ratio = B'/G' = 15/10 = 3/2 or 3 to 2
21
7 boys
Asking us multiple choice questions without letting us see the choices isn't really fair, but if one of them was 21 girls and 9 boys, choose that one.
Sure! A ratio is a comparison of two quantities. It is typically written as a fraction or with a colon. For example, the ratio of boys to girls in a class of 20 students could be written as 3:2 if there are 12 boys and 8 girls. Ratios can be simplified by dividing both parts by their greatest common factor.