Answer:
Choice 4 (s - 3 = 12)
Step-by-step explanation:
I think you made a reading error on this question, as it said "for which equation is s = 9 <em>not</em> the solution?" No need to fret though, this can easily be solved by substituting 9 into the variable <em>s</em> of each equation.
1. We know it's not choice 1 (s + 6 = 15), because doing 9 + 6 does equal 15.
2. We know it's not choice 2 (7 + s = 19), because doing 7 + 9 does equal 16.
3. We know it's not choice 3 (13 - s = 4), because doing 13 - 9 does equal 4.
4. Choice 4 (s - 3 = 12) is the correct answer because doing 9 - 3 equals 6, not 12. Thus this equation is incorrect, meaning this is the correct choice.
Choice 4/D is the correct choice.
-2z^2+5z-5; Quadratic trinomial, 3 terms
Answer:
x=1
Step-by-step explanation:
Ⓗⓘ ⓣⓗⓔⓡⓔ
-6x+9=x+2
-7x=-7
7x=7
x=1
(っ◔◡◔)っ ♥ Hope this helped! Have a great day! :) ♥
Please, please give brainliest, it would be greatly appreciated, I only a few more before I advance, thanks!
First, let’s find how much she spent on monthly operating costs.
5250-4500=750
Then, because all 5 months have been consistent, we can divide by 5
750/5=150
The answer is C
