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The ratio of girls to boys in a certain school is 85. if the school has 221 students how many are boys?
To find the number of boys in the school, we first need to determine the total number of parts in the ratio, which is 85 (girls) + 1 (boys) = 86 parts. Then, we divide the total number of students by the total parts in the ratio: 221 students / 86 parts = 2.57 students per part. Since we can't have a fraction of a student, we round down to the nearest whole number, which means there are 2 boys in the school.
How many students in a class of 108 students are girls if the ratio of girls to boys is 5 to 4?
Well, isn't that a happy little math problem! If the ratio of girls to boys is 5 to 4, that means for every 5 girls, there are 4 boys. To find out how many girls in a class of 108 students, we first need to divide 108 by the total parts in the ratio (5+4=9), which is 12. Then, we multiply 108 by the girls' share (5/9) to find there are 60 girls in the class.
What angle is made by the hands of the clock at four o'clock?
120 degrees is the angle made by the hands of a clock at 4 o clock. To get this answer, you could divide the clock into equal parts (12), and find the ratio of the time in terms of parts to the total number of parts of the clock (which would be 4/12 in this case). Then, you cross multiply the ratio you got, to the ratio of the unknown degrees to the total number of degrees in a circle (x/360). (4 * 360 = 12x). The answer should be 120 degrees.
If there is a 3 to 7 ratio of boys to girls how many boys are there?
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).
How can you find the total number in a whole given the percent and the number of parts?
====== Answer 1: ----------- proportion... A portion of the total is to its percentage of the total as the total is to 100%.
If the ratio of boys to girls in a class is 5 to 8 and there are 40 girls how many boys are in the class?
Since the ratio of boys to girls is 5 to 8, the total ratio parts is 5 + 8 = 13. To find how many boys are in the class, divide the total number of girls (40) by the total parts of the ratio (13), then multiply by the number of boys parts (5). Thus, there are 15 boys in the class.
How do yo do ratio maths?
To share in a given ratio 1) Simplyfy the given ratio by putting each part of the ratio over the LCD 2) find the total no. of parts (add up the simplified ratio) 3) no. of parts / total no. of parts x total amount to be shared = the amout each person reacieves
Divide 100 pounds into three parts in the ratio 10 13 2?
Total number of parts is 25 therefore each part is 4 pounds, so your answer is 40, 52 and 8.
How many students in a class of 108 students are girls if the ratio of girls to boys is 5 to 4?
Well, isn't that a happy little math problem! If the ratio of girls to boys is 5 to 4, that means for every 5 girls, there are 4 boys. To find out how many girls in a class of 108 students, we first need to divide 108 by the total parts in the ratio (5+4=9), which is 12. Then, we multiply 108 by the girls' share (5/9) to find there are 60 girls in the class.
A number used to multiply both parts of a ratio to be equal?
That is necessary if trying to find an equivalent ratio: not otherwise.
What angle is made by the hands of the clock at four o'clock?
120 degrees is the angle made by the hands of a clock at 4 o clock. To get this answer, you could divide the clock into equal parts (12), and find the ratio of the time in terms of parts to the total number of parts of the clock (which would be 4/12 in this case). Then, you cross multiply the ratio you got, to the ratio of the unknown degrees to the total number of degrees in a circle (x/360). (4 * 360 = 12x). The answer should be 120 degrees.
If there is a 3 to 7 ratio of boys to girls how many boys are there?
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).
Kaitlin Deasia and Aisha share 126 sweets in the ratio 2 3 4. How many sweets do they each get?
Oh, dude, let me break it down for you. So, first, you add up the parts of the ratio, which is 2 + 3 + 4 = 9. Then, you divide the total number of sweets by 9 to find out how many each part represents, which is 126 ÷ 9 = 14. Finally, you multiply each part of the ratio by 14 to find out how many sweets each of them gets: Kaitlin gets 2 x 14 = 28, Deasia gets 3 x 14 = 42, and Aisha gets 4 x 14 = 56. Voilà!
What is the ratio of the number of equally likely outcomes in an event to the total number of possible outcomes?
You find the total number of outcomes by adding the first part of the odds to the second part of the odds. For example: 1:1 The total number of outcomes would be 2. To find the ratio of equally likely outcomes to the total number, find the number of outcomes, and put it on the left of the semicolon. Then put the total number on the right side. For the same example: (outcomes)->1:2<-(total)
How can you find the total number in a whole given the percent and the number of parts?
====== Answer 1: ----------- proportion... A portion of the total is to its percentage of the total as the total is to 100%.
A box contains apples and oranges. The ratio of apples to oranges is 53. If there are 15 oranges in the box how many apples are in the box?
To find the number of apples in the box, we first need to determine the total number of parts in the ratio, which is 5 (5 parts for apples + 3 parts for oranges). Since the ratio of apples to oranges is 5:3, we can divide the total number of parts by the number of parts for apples (5) to find the multiplier, which is 15. Therefore, there are 5 * 15 = 75 apples in the box.
A piece of timber has been cut into two lengths in the ratio of 7 to 2 if the original piece of timber was 828 cm longhow long is the larger of the cut lengths?
To find the lengths of the two pieces, you first need to find the total number of parts in the ratio, which is 7+2=9 parts. Then, divide the total length of the original timber by the total number of parts to find the length of one part: 828 cm / 9 = 92 cm per part. Finally, multiply the length of the larger part (7 parts) by the length of one part to find the length of the larger cut: 7 parts * 92 cm = 644 cm. Therefore, the larger cut length is 644 cm.
