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A furniture store is having a weekend sale and is offering a 20% discount on patio chairs and tables. The sales tax on furniture is 6.25%. Using function composition, how can you represent the total amount, A, that you would need to pay for furniture that costs x dollars?

Respuesta :

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First, we subtract 20% of the amount from x, so the initial cost of the furniture should be 80% of x or 0.80x. Then, due to the sales taxs, this amount should be added with 6.25% of itself. Such that,
                                   A = 0.80x + 0.0625(0.80x)
                                       = 0.85x
Cricetus

Answer:

P(x)=0.085x

Step-by-step explanation:

Let the cost of the item be x

Discount = 20% of x

We know that 20%=[tex]\frac{20}{100}[/tex]

Hence

Discount = 0.02x

Selling Price = x - 0.02x

Selling Price = 0.08x

Tax = 6.25% of Selling price

Tax = 0.0625*(0.08)x

Tax=0.005x

Net payment to be made = selling price + Tax

Net Payment = 0.08x+0.005x

Net payment = 0.085x

Hence we can write our function as

P(x)=0.085x

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