Answer:
D
Step-by-step explanation:
Using cosine formula, we have
Answer:

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

Step-by-step explanation:
<u>Step 1: Define</u>
Point (40, 3000)
Point (60, 4000)
<u>Step 2: Find slope </u><em><u>m</u></em>
- Substitute:

- Subtract:

- Divide:

This is the equation you need to use: y = kx
So, let's put it this way:
y can be the total amount of money you spend (so $48), and x the number of people (6)
y=kx
48=k*6
k = 48/6
k = 8
The constant variation, and the price of one ticket is 8.
When one number is negative and the other is positive.
Answer:
2d-388 or 2(d-194)
Step-by-step explanation:
25(d-10)-23(d+6)
25d-250-23d-138
25d-23d-250-138
2d-250-138
2d-388
factor out or simplify,
you get 2(d-194)