84.5 is x because 169 divided by 2 is 84.5. After that you are left with x=84.5. Hope this helps.
Answer:
use so cratic app i
Step-by-step explanation:
Answer:
x = ±1
Step-by-step explanation:
Step 1: Define variables
f(x) = x² + 1
f(x) = 2
Step 2: Substitute
2 = x² + 1
Step 3: Solve for <em>x</em>
0 = x² - 1
0 = (x - 1)(x + 1)
x - 1 = 0
x = 1
x + 1 = 0
x = -1
∴ x = ±1
Let: x = number of copies sold
We can formulate the following equation to solve for x:
1.50x - 0.9x - 600 = 0
x = 1000
Therefore, the club must sell 1000 copies to break even. Among the choices, the correct answer is A.
Detailed Answer:
An algebraic equation can be defined as a mathematical statement in which two expressions are set equal to each other.
Example of Algebraic Equations:
Eg. 1) x + 10 = 20
Eg. 2) 5x + 10 = 20
Eg. 3) 2x + 2 = 4
