Answer:
D. (1, -2)
General Formulas and Concepts:
<u>Pre-Algebra</u>
- Order of Operations: BPEMDAS
- Equality Properties
<u>Algebra I</u>
- Solving systems of equations using substitution/elimination
Step-by-step explanation:
<u>Step 1: Define systems</u>
5x - 2y = 9
3x + 4y = -5
<u>Step 2: Rewrite systems</u>
10x - 4y = 18
3x + 4y = -5
<u>Step 3: Solve for </u><em><u>x</u></em>
- Add to equations together: 13x = 13
- Divide 13 on both sides: x = 1
<u>Step 4: Solve for </u><em><u>y</u></em>
- Define: 3x + 4y = -5
- Substitute in <em>x</em>: 3(1) + 4y = -5
- Multiply: 3 + 4y = -5
- Isolate <em>y </em>term: 4y = -8
- Isolate <em>y</em>: y = -2
And we have our final answer!
Answer:
oof ok i tried really hard hope you can read it... hope this makes mlre sense.
Answer: y= 9x+1
Step-by-step explanation:
Even though I'm only in 7th grade....
Divide 19/2= 9. Something
19-1=18, and 18/2=9
Do the same to others to check
Answer:
Step-by-step explanation:
(−4.46)(11)=−49.06
70% because there are 7 out of the 10 years that have more than 5 inches of rain so you do 7/10 x 100 = 70%
