There are 77 students in the syudent council. The ratio of girls to boys is 7:4. How many girls are in the student council?
To find out how many girls are in the student council, we'll first calculate the total number of parts in the ratio. Since the ratio of girls to boys is 7:4, there are 7 + 4 = 11 parts in total.
Next, we'll find the value of each part. To do this, we divide the total number of students by the total number of parts: 77 / 11 = 7.
Finally, we'll calculate the number of girls by multiplying the value of each part by the number of parts representing girls: 7 * 7 = 49.
Therefore, there are 49 girls in the student council.
To find the number of girls in the student council, we need to use the given ratio of girls to boys, which is 7:4.
First, we need to find the total number of parts in the ratio, which is 7 + 4 = 11.
Next, we can calculate the number of parts that represent the girls by dividing the total number of students in the student council by the total number of parts in the ratio.
77 (total students) ÷ 11 (total parts) = 7 (number of parts representing girls)
Finally, we can find the number of girls in the student council by multiplying the number of parts representing girls by the value of one part in the ratio.
7 (number of parts representing girls) * (77 ÷ 11) = 7 * 7 = 49
Therefore, there are 49 girls in the student council.
7/11 = x/77
Cross multiply and solve for x.