Class of students - number of students that are boys = numbers of students that are girls
30 - 13 = 17
To change the number of students that are girls into percentage...
17/1 * 1/100 = 17/100
17/100 in a % form = 17%
The percentage of girls in the class is 17%
V= A(h/3) is the formula used for finding square pyramid.
Explanation:
In the above equation V stands for volume , A stands for base area, h stands for height. For finding the volume of square pyramid we need to follow certain steps, they are as follows:
First we need to measure all the side lengths present in the base. Secondly we need to calculate the base area , where the area of one sided square is a*a , then finally we need to multiply the base area with the height of the pyramid . To find the area of the square pyramid we use the formula-
A= a2+2a root over( a2/4+h2 )
You could re-write this to make it into an equation, you want to isolate the y, for a slope-intercept form. So you +8 to the other side; so it would be 7x+8=14y, then divide it by 14. And your equation would be y=4/7+x/2.
y=3x-2 y=-2x+8
3x-2=-2x+8 (plus 2 each side)
3x=-2x+6 (plus 2x each side)
5x=6 (divide by 5 each side)
x=1.2
Plug x back into an equation
y=3(1.2)-2
y=3.6-2
y=1.6
Answer: (1.2, 1.6)
