According to the given data we have the following equation:
|-ax-b|=c
So, to calculate the value of x we would have to apply the following property:
absolute rule
if |uI=a, a>o, then u=a or u=-a
Therefore, considering the propert above the calculation of would be as follows:
if a<0
-2x-1=-2
-2x=-1
x=1/2
if a>0
-2x-1=2
-2x=3
x=-3/2
The value of x would be 1/2 and -3/2
To find percentage: divide the given value by the total and multiply by 100
546/1300 x 100 = 42%
4 groups of 3 girls and 3 boys. Then there would be an extra three girls
