Alexis went back-to-school shopping. She purchased one pack of markers for [tex]\[tex]$2.50[/tex], a lunchbox for [tex]\$[/tex]5.25[/tex], and two shirts for [tex]\$7.99[/tex] each. She used a 20\%-off coupon.

How much did Alexis owe?

Show your work.



Answer :

Sure! Let's break down the problem step by step:

1. Identify the prices of the individual items Alexis bought:
- Markers: \[tex]$2.50 - Lunchbox: \$[/tex]5.25
- Each shirt: \[tex]$7.99 - Number of shirts: 2 2. Calculate the total cost of the shirts: - Cost of two shirts = \$[/tex]7.99 per shirt × 2 shirts = \[tex]$15.98 3. Calculate the total cost before applying the discount: - Total cost = cost of markers + cost of lunchbox + cost of two shirts - Total cost = \$[/tex]2.50 + \[tex]$5.25 + \$[/tex]15.98 = \[tex]$23.73 4. Calculate the discount amount: - Discount rate: 20% (which is 0.20 as a decimal) - Discount amount = total cost before discount × discount rate - Discount amount = \$[/tex]23.73 × 0.20 = \[tex]$4.746 5. Calculate the total cost after applying the discount: - Total cost after discount = total cost before discount - discount amount - Total cost after discount = \$[/tex]23.73 - \[tex]$4.746 = \$[/tex]18.984

Therefore, Alexis owed \[tex]$18.98 after using the 20% off coupon. Note: While it is precise to present \$[/tex]18.984, typically monetary amounts are rounded to the nearest cent. Thus, Alexis owed approximately \$18.98.