Question

What is $20\% $ of $\$ 17.99$?

Answer 1

Hint: Percent means out of one hundred. In mathematics, a percentage is a number of ratios expressed as a fraction of a hundred. It is denoted by the symbol $\% $.and the discount is equal to the original price multiple by discount percent divided by hundred. And the final price is equal to the differences between the original price and discount.

Formula used:
Final price = original price - Discount
Discount = original price $\times \dfrac{{ \text{discount}\% }}{{100}}$;

Complete answer:
Before we solve the problem, we must realize what percentage is.
Percentage means out of one hundred.
Therefore, twenty percent is equal to twenty divided by a hundred. So we get,
$20\% = \dfrac{{20}}{{100}}$
Simplify this, we get,
$20\% = 0.20$
We have to find the value of twenty percent of the dollar$17.99$
$20\%$ of $\$ 17.99$
Therefore, we will multiply the discount amount from the original amount of $\$ 17.99$.
Therefore, we have $0.20 \times \$ 17.99$
$ = 3.598$;
Simplify this value, we get, $\$ 3.60$
Finally, the discount amount is $3.60$dollars.
Then we subtract this discount amount from the original.
Therefore,
final price = original price - discount;
Apply the values in the formula, we get
$ = \$ 17.99 - \$ 3.60$
Multiply this values we get,
$ = \$ 14.39$
Therefore, you pay $14.39$ dollars after $20\% $ of a cost.

Additional Information:
Here we do this problem in another simple method. We know the formula of discount and final price. Just apply the values in the formula. We get the answer simply. We know that,
Discount = original price $\times \dfrac{{discount\% }}{{100}} $
Discount $= 17.99 \times \dfrac{{20}}{{100}} $
$ = \$ 3.60 $
$ = 17.99 \times 0.2 $
Final price = Original price - Discount
$ 17.99 - 3.60 = 14.39$
Substitute the values in the formula, we get,
Discount $= 17.99 \times \dfrac{{20}}{{100}}$
$ = 17.99 \times 0.2$
 $ = \$ 3.60$
Therefore by the discount, we save the amount $3.60dollars$.
Now subtract the discount valve from the original price.
Final price = original price - discount;
Substitute the values in the formula. we get,
$17.99 - 3.60 = 14.39$
Therefore we get the answer.

Note:
The term percent means out of a hundred. In mathematics, percentages are used as fractions and decimals. When using percentages the whole is considered to be made up of a hundred parts. We will see the percentages in almost all places like offers, discounts, etc…