Answer:
A. 156 students are in choir
Step-by-step explanation:
It states that for every 3 students in choir equals 1 student in band which give you the equation 1x3. So if band has 52 students then your new equation is 52x3 which is 156! Hope this helps!:)
Answer:
x = -3
y = 4
Step-by-step explanation:
7x + 2y = -13
-7x + y = 25
3y = 12
-7x + y = 25
y = 4
-7x + 4 = 25
y = 4
-7x = 21
y = 4
x = -3
there is only 1 solution for this equation is (-3,4)
C. f(x)= log 1/x^2 , c=/ 0
4 x -5 = -20 then 12 + -20 = -8
32x + 55 = 185
32x = 130
x = 4.0625