Answer:
(2, 4)
General Formulas and Concepts:
<u>Pre-Algebra</u>
Order of Operations: BPEMDAS
- Brackets
- Parenthesis
- Exponents
- Multiplication
- Division
- Addition
- Subtraction
Equality Properties
- Multiplication Property of Equality
- Division Property of Equality
- Addition Property of Equality
- Subtract Property of Equality
<u>Algebra I</u>
- Solving systems of equations using substitution/elimination
Step-by-step explanation:
<u>Step 1: Define Systems</u>
y = 2x
x = -y + 6
<u>Step 2: Solve for </u><em><u>y</u></em>
<em>Substitution</em>
- Substitute in <em>x</em>: y = 2(-y + 6)
- Distribute 2: y = -2y + 12
- Isolate <em>y</em> terms: 3y = 12
- Isolate <em>y</em>: y = 4
<u>Step 3: Solve for </u><em><u>x</u></em>
- Define equation: x = -y + 6
- Substitute in <em>y</em>: x = -4 + 6
- Add: x = 2
Answer:- | -7 + 4 |
= - | -3 | Since | -3 | = 3:
= - (3)
= - 3
Answer:
B) 10
Step-by-step explanation:
|5-15|
Do what is inside the absolute values signs
5-15
-10
|-10|
Absolute value means always positive so take the positive value of -10
10
Answer:
9 7/8
Step-by-step explanation:
solution by separating parts:
1) rewrite equation with parts separated
= 6 +1/4 + 3 + 5/8
2) solve whole number parts
6 + 3 = 9
3) solve fraction parts
1/4 + 5/8 = ?
- find the LCD of 1/4 and 5/8 and rewrite to solve
LCD = 8
2/8 + 5/8 = 7/8
combining the whole and fraction parts:
9 + 7/8 = 9 7/8
DH B forms a triangle.
H = 180 - 33-46 = 101
X = 180 -101 = 79 degrees.
