10.99x = 3.99x + 280
7x = 280
x = 40
They must sell 40 T-shirts to break even
Answer:
58.86 mg
Step-by-step explanation:
8 mg = 16 kg
1 kg = 2.2 lb
use substitution
8 mg = 16 (2.2 lb)
8 mg = 35.2 lb
8 mg / 35.2 lb = x mg / 259 lb
2072 = 35.2 x
x = 58.86 mg
Answer:

General Formulas and Concepts:
<u>Pre-Algebra</u>
- Order of Operations: BPEMDAS
<u>Algebra I</u>
- Slope Formula:

Step-by-step explanation:
<u>Step 1: Define</u>
Point (-6, -1)
Point (6, 2)
<u>Step 2: Find slope </u><em><u>m</u></em>
- Substitute:

- Add:

- Simplify:

63 = 1 x 63
63 = 3 x 21
63 = 7 x 9
Hope that helps
Those are a few different ways for the answer