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Anit [1.1K]
3 years ago
6

I need the answer for 10 and how you got the answers

Mathematics
1 answer:
Katyanochek1 [597]3 years ago
6 0

Answer:

A. y=\frac{3}{4} x B. 25% discount

Step-by-step explanation:

PART A:

For the shirt:

y=Sale price of the shirt=$18

x=Cost of the shirt=$24

Now, \frac{x}{y} =\frac{24}{18} =\frac{4}{3}

⇒y=\frac{3}{4}x

For the pair of shoes:

y=Sale price of the pair of shoes=$42

x=Cost of the pair of shoes=$56

Now, \frac{x}{y} =\frac{56}{42} =\frac{4}{3}

⇒y=\frac{3}{4}x

So, the equation that represents the sale price y of an item that costs x dollars is: y=\frac{3}{4} x

PART B:

y=Sale price of an item

x=Cost of the item

Discount on the item =x-y=x-\frac{3}{4} x=\frac{x}{4}

Percentage discount on the item=\frac{\frac{x}{4} }{x}×100=25%

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