Answer:
mAB = 7
General Formulas and Concepts:
<u>Pre-Algebra</u>
Order of Operations: BPEMDAS
- Brackets
- Parenthesis
- Exponents
- Multiplication
- Division
- Addition
- Subtraction
Equality Properties
<u>Algebra I</u>
- Terms/Coefficients/Degrees
Step-by-step explanation:
<u>Step 1: Define</u>
<em>Set up equation.</em>
mAB + mBC = mAC
x + 4 + 4 = 3x + 2
<u>Step 2: Solve for </u><em><u>x</u></em>
- Combine like terms: x + 8 = 3x + 2
- Isolate <em>x</em> terms: 8 = 2x + 2
- Isolate <em>x </em>term: 6 = 2x
- Isolate <em>x</em>: 3 = x
- Rewrite: x = 3
<u>Step 3: Find AB</u>
- Define: mAB = x + 4
- Substitute in <em>x</em>: mAB = 3 + 4
- Add: mAB = 7
Answer:
15
Step-by-step explanation:
multiply both sides by 15
45x=675
Divide both sides by 45
x=15
Answer:
Step-by-step explanation:
B = 2/5(A - 9)
(5/2)B = A - 9
A = 9 + (5/2)B
False, I don't think it makes any sense.
Answer:
35 multiplied by 12
Step-by-step explanation:
Because either you multiply it or you do sohcahtoa
