12 Students
24/x=2/3
You solve the proportion and you get the total of the class and you find 1/3 of that number.
Well, honey, if there are 91 students in math class out of a total of 524 students in the school, you just divide 91 by 524, multiply by 100, and you've got yourself the percentage. So, 91 divided by 524 is roughly 0.1733, multiply that by 100, and you get about 17.33%. Math class is bringing in about 17.33% of the school's attendance - not too shabby, I'd say.
5
9 boys
48
56
Well, isn't that just a happy little math problem! If one third of the 21 students are girls, that means two thirds are boys. To find out how many boys are in the class, you can multiply 21 by two thirds, which equals 14 boys. Just imagine all those happy little boys and girls learning together in harmony.
Well, honey, if there are 91 students in math class out of a total of 524 students in the school, you just divide 91 by 524, multiply by 100, and you've got yourself the percentage. So, 91 divided by 524 is roughly 0.1733, multiply that by 100, and you get about 17.33%. Math class is bringing in about 17.33% of the school's attendance - not too shabby, I'd say.
5
Not very many schools allow students to eat in class. This would be a total disaster and a mess if teachers allowed students to eat during class or eat in class during their lunch time. But somewhere in the world there are schools where teachers let you eat in your classrooms. you just have to look for a school that does. Even Penta doesn't let you eat in the classrooms.
9 boys
48
18 * 35 = 630 total students 630 / 30 = 21 total classes An additional 3 classes.
56
3 boys to 7 girls is 3 boys per 10 students gives class size of 13 too small; 6 boys per 20 students gives class size of 26; 9 boys per 30 students gives class size of 39 too many; class size is 26
Total score 30 x 75 = 2250, male total 20 x 70 ie 1400, so 10 females scored total of 850, an average of 85.
You would first multiply 35 x 18 to find out how many total students there are, which is 630. Then, you would divide 630/30, since you can only have 30 students maximum in a class. This gives you the answer of 21 classes must be formed.
18