A class had 50 students in one room. 60% of them are girls. How many girls are in the class?

Pls, hurry!
I need a whole page

30

Step-by-step explanation:

Total number of students in the room = 50

60% of them are girls.

Percentage is usually divided by 100.

Divide the given percentage by 100 and multiply the result with the total number of students in the room.

Therefore,

60% /100% x 50

0.6 x 50

30

The number of girls is 30

n=9

step-by-step explanation:

7 times a number = 7n

decreased by 13 = 7n-13

same as is =

5 times the number = 5n

increased by 5 = 5n+5

7n-13 = 5n+5

2n=18

n=9

proofs involving isosceles triangles often require special consideration because an isosceles triangle has several distinct properties that do not apply to normal triangles.(more about triangle types) therefore, when you are trying to prove that two triangles are congruent, and one or both triangles, are isosceles you have a few theorems that you can use to make your life easier.

step-by-step explanation:

an isosceles triangle has two congruent sides and two congruent angles. the congruent angles are called the base angles and the other angle is known as the vertex angle. ∠bac and ∠bca are the base angles of the triangle picture on the left. the vertex angle is ∠abc