3 years ago

Please help with these pre-calc questions im so lost

Mathematics

1 answer:

mel-nik [20]3 years ago

6 0

Answer: Question #1 B, Question #2 A: 9, –9, and Question #3 (a) A, (b) x–(1/2, 1/3, –7)= 0, and (c) 0?

Step-by-step explanation:

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Vinvika [58]

Answer:

Breyana paid 88% of the dress's original price.

Step-by-step explanation:

We are given the following in the question:

Let x be the original price of dress.

The dress is on sale for 20%.

Price of dress after discount =

$(x-0.20x)$

Breyana will also have to pay 10% sales tax on the discounted price of the dress.

Price of dress after discount =

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Total cost of dress =

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We have to calculate percentage of original price paid by Breyana

$\dfrac{(x-0.20x) + 0.10(x-0.20x)}{x}\times 100\%\\\\=\dfrac{0.80x+0.08x}{x}\times 100\%\\\\=\dfrac{0.88x}{x}\times 100\%\\\\=88\%$

Thus, Breyana paid 88% of the dress's original price.

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Step-by-step explanation:

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