Answer:
6
Step-by-step explanation:
I think the answer is 6
She is losing $20, so it indicates a negative number when really it is positive
Answer
x=20
Step-by-step explanation:
(x-3) + (8x+3) = 180
9x = 180
x=20
Answer:
General Formulas and Concepts:
<u>Pre-Algebra</u>
Order of Operations: BPEMDAS
- Brackets
- Parenthesis
- Exponents
- Multiplication
- Division
- Addition
- Subtraction
<u>Algebra I</u>
- Standard Form: ax² + bx + c = 0
- Quadratic Formula:
Step-by-step explanation:
<u>Step 1: Define equation</u>
5m² - 11m - 42 = 0
<u>Step 2: Define variables</u>
a = 5
b = -11
c = -42
<u>Step 3: Find roots</u>
- Substitute:
- Exponents:
- Multiply:
- Add:
- Evaluate:
- Evaluate:
Answer:
12.99km
Step-by-step explanation:
Using the formula
C=2(pi)(r)