Question

Samuel orders four DVDs from an online music store. Each DVD costs $9.56. He has a 25% discount code, and sales tax is 7.5%. Round sales tax amounts to the nearest cent. What is the total cost of his order?

Answer 1

The total cost of his order is $30.83

Step-by-step explanation:

Given,

Cost of one DVD = $9.56

Cost of four DVDs = 9.56*4 = $38.24

Discount = 25%

Amount of discount = 25% of 38.24

$Amount\ of\ discount=\frac{25}{100}*38.24\\\\Amount\ of\ discount=0.25*38.24\\\\Amount\ of\ discount=\ 9.56$

Cost of DVD after discount = 38.24-9.56 = $28.68

Sales tax = 7.5%

Sales tax amount = 7.5% of cost after discount

$Sales\ tax\ amount=\frac{7.5}{100}*28.68\\\\Sales\ tax\ amount=0.075*28.68\\\\Sales\ tax\ amount=\ 2.15$

Total cost of order = Discounted price + Sales tax amount

Total cost of order = 28.68 + 2.15 = $30.83

The total cost of his order is $30.83

Keywords: addition, percentage

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