Question

A school has 1800 students. 55% of the students are
girls. How many boys are in the school?...(solve by letting x)
​

Answer 1

Answer:

810

Step-by-step explanation:

boys: x

girls: 1800 - x

0.55(1800) = 1800 - x

990 = 1800 - x

810 = x

Answer 2

Answer:

810 students = 45

Step-by-step explanation:

total no. of students=1800 let the no. of girl students be x since it is given 55% so make it 55x ,. so the formula for percentage is upon 100 so 55/100*1800=990, so it is the no. of girls student , so if the no. of girls student that is 55%so the remaining percent is 45 percent so we will substract 1800-990=810 so the no. of boys is equal to 810 that is 45% (I know I have not explaine in a good way ) so sorry'for that