Q30. - Algebra 1

Question

Find the total price of each item.

Computer: $1099.00  

discount: 25%

Step-by-Step Solution

Answer

The discounted price of the computer is $824.25.

Step 1. Use the definition of the percentage change.

The percent change is the increase or decrease in the value of a quantity. If the new value is larger than the original value then it is a percent increase and if the change in value is lesser than the original value it is called percentage decrease.

Step 2. Concept of Discount.

Discount is a percentage of the original price that is subtracted from the price of the item the final price is called selling price. It is a percent of the decrease in the cost.

Step 3. Find the new price.

We are given the following price and the discount percentages:

Computer: $1099.00  

discount: 25%  

The discount is 25%  of the price. We will subtract this amount from the original price. 

So If x represents the new price after subtracting the discount then we have:

$\begin{array}{l}x=\text{Cost - Discount}\%\text{ of Cost}\\ x=\$1099-25\%\times \$1099\\ x=1099-\frac{25}{100}\times 1099\\ x=1099-0.25\times 1099\\ x=1099-274.75\\ x=\$824.25\end{array}$

Thus, the discounted price of the computer is $824.25.