The equation represent the situation is:
First let x be number of small apartment
Since the total apartment is 18
Then number of large apartment is 18 – x
So the equation is:
17,600 = 800x + 1200(18-x)
Simplifying
17,600 = 800x + 21,600 – 1200x
400x = 4000
X = 10
Answer:
-3 or -1 is a valid value for x
Step-by-step explanation:
We start by cross multiplying;
So the expression becomes;
x^2 + 5x + 6 = 1(x + 3)
x^2 + 5x + 6 = x + 3
x^2 + 5x -x + 6-3 = 0
x^2 + 4x + 3 = 0
x^2 + x + 3x + 3 = 0
x(x + 1) + 3(x + 1) = 0
(x + 3)(x + 1) = 0
x + 3 = 0 or x + 1 = 0
x = -3 or x = -1
B. sometimes
C. never
Answer:
The answer is A. always
Step-by-step explanation:
Answer:
15
Step-by-step explanation:
You take 5 times 3.