The product of a nonzero rational number and an irrational number
2 answers:
Answer:
The product of a non-zero rational number and an irrational number is irrational.
Step-by-step explanation:
If you multiply any irrational number by the rational number zero, the result will be zero, which is rational.
However, the product of a non-zero rational number and an irrational number is irrational.
Example-
So, its irrational.
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Hope this help’s you out.
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%.