There are 21 students in a class. the ratio of the number of boys to the number of girls is 4: 3. how many girls are in the class?

9

Step-by-step explanation:

Given : There are 21 students in a class.

It is given that the ratio of the number of boys to the number of girls is 4:3.

Let 4x be the number of boys and 3x be the number of girls in class.

According to the question , we have

Now, the number of girls in class = 3x= 3(3)=9

Hence, there are 9 girls in class.

1

x = 1

step-by-step explanation:

0 ÷ x = 0

0 ÷ 1 = 0

answer:

c) the x-coordinate of the center of the circle increases by 3