18
-21
The total number of students in the class is 18 boys + 7 girls = 25 students. The fraction of the class that are girls is calculated by taking the number of girls (7) and dividing it by the total number of students (25), resulting in 7/25. Therefore, the fraction of the class that are girls is 7/25.
12
18 boys and 12 girls
To determine the fraction of girls and boys in the class, you would need to know the total number of students in the class and the number of girls and boys. Let's say there are 20 students in the class, with 12 girls and 8 boys. The fraction of girls in the class would be 12/20 or 3/5, and the fraction of boys would be 8/20 or 2/5.
-21
The total number of students in the class is 18 boys + 7 girls = 25 students. The fraction of the class that are girls is calculated by taking the number of girls (7) and dividing it by the total number of students (25), resulting in 7/25. Therefore, the fraction of the class that are girls is 7/25.
56
9 boys
12
If the ratio of girls to boys is 5 to 4, this means that out of every 9 students (5 girls + 4 boys), 5 are girls and 4 are boys. To find out how many girls there are in the class, you need to divide the total number of students by the total parts of the ratio (5 + 4 = 9) and then multiply that result by the girls' portion of the ratio (5/9). So, in this case, there would be (5/9) * 90 = 50 girls in the class.
Oh, dude, that's simple math. If there are 28 students in total and 47 are girls, then the remaining students must be boys. So, 28 minus 47... wait, no, that's not right. Ugh, math is hard. Okay, so 28 minus 47 is... Oh, forget it. Let's just say there are some boys and some girls in that class.
To find the number of boys in the class, we first need to determine the total number of students. Since the ratio of boys to girls is 5 to 8, the total parts of the ratio is 5 + 8 = 13. If there are 40 girls in the class, we can calculate the total number of students as 40 girls / 8 girls per part = 5 parts. So, the total number of students is 5 parts * 13 total parts = 65 students. To find the number of boys, we can calculate 65 total students - 40 girls = 25 boys in the class.
1 to 2 = 5 to 10 so 15 students in all.
That would be a total of 335 students.
18 boys and 12 girls
45