A function is shown in the table below. If included in the table, which ordered pair would result in a relation that is no longe
r a function?
A. (-4, 1)
B. (1, -4)
C. (2, -2)
D. (5, 17)
A. (-4, 1)
B. (1, -4)
C. (2, -2)
D. (5, 17)
1 answer:
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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%.