Given:
The formula for total cost is
where, p is the price of item and s is the sales tax rate (as a percent).
You pay $14.77 for an item priced at $14.
To find:
The the tax rate.
Solution:
You pay $14.77 for an item priced at $14. So,
Total cost (T) = $14.77
Price of item (p) = $14
Putting T=14.77 and p=14 in given formula, we get
Multiply both sides by 100.
Divide both sides by 14.
Therefore, the tax rate is 5.5%.
Answer:
y = -5x - 9.
Step-by-step explanation:
(-2, 1)
(0, -9)
(1 - -9) / (-2 - 0) = (1 + 9) / (-2) = 10 / (-2) = 5 / (-1) = -5
Since -5 is the slope, and the y-intercept is at (0, -9), we have an equation of y = -5x - 9.
Hope this helps!
Answer:
U-A empty
Step-by-step explanation:
all in a is in u in u is in a therfore empty is found on u but not in a
Answer:
500
Step-by-step explanation:
is 100 is 20%, multiply 100 by 5
Answer:
-213
General Formulas and Concepts:
<u>Pre-Algebra</u>
Order of Operations: BPEMDAS
- Brackets
- Parenthesis
- Exponents
- Multiplication
- Division
- Addition
- Subtraction
Step-by-step explanation:
<u>Step 1: Define</u>
3|x + y|² - (xy)²
x = 3
y = -5
<u>Step 2: Evaluate</u>
- Substitute: 3|3 - 5|² - (3(-5))²
- Multiply: 3|-2|² - (-15)²
- Exponents: 3|-2|² - 225
- Absolute Value: 3(2)² - 225
- Exponents: 3(4) - 225
- Multiply: 12 - 225
- Subtract: -213
