11. There are 600 students in a school. If 20% students are girls, find the number of girls.​

120

Step-by-step explanation:

20% of 600

= 120 girls

Explanation

Total no. of students = 600%

20% of the total are girls

No. of girls = 20% of 600

No. of girls is 120

for this case we have by definition, if two lines are perpendicular, then the product of their slopes is -1.

then, given the following line:

so,

we are looking for m_ {2}:

then, the line is given by:

we find "b" replacing the given point:

finally, the equation is:

option c

c

step-by-step explanation: