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:
24.5
Step-by-step explan ation:
y=7
x=6
7/6 y/-21
6y=-21x7
6y=-147
y=24.5
brainliest pls thank you!
Answer:
x=6
Step-by-step explanation:
(1/3x+2=4)x3
x+6=12
x=12-6
x=6
Answer:
Step-by-step explanation:
X^2-3x=7/4 should first be rewritten in standard form, which here would be:
x^2 - 3x - 7/4 = 0.
1. Identify the coefficient of the x term and take half of that number:
-3/2
2. square this result: (-3/2)^2 = 9/4
3. add this last result, 9/4, between the -3x term and the -7/4 term, and then subtract it as shown:
x^2 - 3x + 9/4 - 9/4 - 7/4 = 0
4. Rewriting the first 3 terms as the square of a binomial, we get:
(x - 3/2)^2 - 16/4 = 0, or (x - 3/2)^2 = 16/4
5. Take the square root of both sides, obtaining:
x - 3/2 = ±√4/2 or ±√2
6. Write out the two roots: x = 3/2 + √2
and x = 3/2 - √2
Answer:
-1+i
Step-by-step explanation:
(8+10i)-(9+9i)
8+10i-9-9i
8-9+10i-9i
-1+10i-9i
-1+i
