Answer:
7/3 or 2 1/3
Step-by-step explanation:
8/3 -2/6
Need a common denominator
Multiply 8/3 × 2/2
16/6 - 2/6
Subtract the numerators
14/6
simplify
7/3 or 2 1/3
Answer:
1. 18 preferred ECQ
2. 15 preferred GCQ
3. 12 preferred both ECQ AND MECQ
12x+4y=60
3x+y=15. Then y=15-3x
12x+4(15-3x)=60
12x+60-12x=60
0x=0
Then every x and every y is solution.
Answer:
1080°
General Formulas and Concepts:
<u>Math</u>
<u>Pre-Algebra</u>
Order of Operations: BPEMDAS
- Brackets
- Parenthesis
- Exponents
- Multiplication
- Division
- Addition
- Subtraction
<u>Geometry</u>
- Sum of Angles: 180(n - 2)°
Step-by-step explanation:
<u>Step 1: Define</u>
We are given a 8 sided polygon (a octagon)
n = 8
<u>Step 2: Find Sum</u>
- Substitute in <em>n</em> [Sum of Angles]: 180(8 - 2)°
- (Parenthesis) Subtract: 180(6)°
- Multiply: 1080°