You know that she runs 4 miles every day, so we can set up the equation:

For any given day you just plug that number in for 'd' and it will give you the total number of miles.
Answer:

Step-by-step explanation:
![\frac{1}{\sqrt[5]{7}}=\frac{1}{7^{1/5}}=7^{-1/5}](https://tex.z-dn.net/?f=%5Cfrac%7B1%7D%7B%5Csqrt%5B5%5D%7B7%7D%7D%3D%5Cfrac%7B1%7D%7B7%5E%7B1%2F5%7D%7D%3D7%5E%7B-1%2F5%7D)
15 gallons of gas is how much
Answer:
w = -3/8
General Formulas and Concepts:
<u>Pre-Algebra</u>
Order of Operations: BPEMDAS
- Brackets
- Parenthesis
- Exponents
- Multiplication
- Division
- Addition
- Subtraction
Equality Properties
Step-by-step explanation:
<u>Step 1: Define Equation</u>
-6(w + 2) = w - 9 + 3(3w + 1)
<u>Step 2: Solve for </u><em><u>w</u></em>
- Distribute: -6w - 12 = w - 9 + 9w + 3
- Combine like terms: -6w - 12 = 10w - 6
- Add 6w to both sides: -12 = 16w - 6
- Isolate <em>w</em> term: -6 = 16w
- Isolate <em>w</em>: -3/8 = w
- Rewrite: w = -3/8