Final answer:
After calculating, Mya's brother's claim is incorrect. The total cost of the clothes including a 9.5% sales tax is $41.50, not $47.40.
Step-by-step explanation:
To determine if Mya's brother is correct about the total cost including sales tax, we need to follow these steps:
Calculate the Total Cost of the Items
Add the cost of the pair of jeans, which is $20.95, to the cost of the shirt, which is $16.95.
$20.95 + $16.95 = $37.90
Calculate the Sales Tax
Convert the sales tax rate from a percentage to a decimal by dividing by 100: 9.5% becomes 0.095. Next, multiply the total cost of the items by the sales tax rate to find the amount of sales tax.
$37.90 × 0.095 = $3.60 (rounded to the nearest cent)
Add the Sales Tax to the Cost of the Clothing
Combine the total cost of the items with the sales tax to find the total amount Mya paid.
$37.90 + $3.60 = $41.50
Proving Mya's Brother Right or Wrong
Given that the total amount with sales tax is $41.50, Mya's brother's claim that Mya paid $47.40 is incorrect.
Mya actually paid a total of $41.50 for the jeans and shirt, including sales tax.