Expand and simplify
(x-3) (x-3) +2(x-3) -8=0
(x-3+2)(x-3)-8=0
(x-1)(x-3)-8=0
x^2 -4x +3-8=0
x^2 - 4x -5=0
x^2 -5x +x-5=0
x(x-5)+x-5=0
(x+1)(x-5)=0
x= - 1, 5
X = A/y
You divide the y from both sides
The y on the right cancels
On the left you have A/y = x
To start we need to find out the number of total students:
7+8+5+12=32
Then we know that 8 out of the 32 students chose green:
8/32=0.25
0.25•100%=25%
Answer:
$630
Step-by-step explanation:
They raised 70% of $900.
70% of $900 = 70% × $900 = 0.7 × $900 = $630
