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masha68 [24]
3 years ago
13

A necklace regularly sells for $18.00. the store advertises a 15% discount. what is the sale price of the necklace in dollars

Mathematics
1 answer:
SSSSS [86.1K]3 years ago
6 0
I can solve with 2 methods:

I. Because the discount is 15 % of 18 $ , the price will be (100-15=85) 85 % of 18 $
18*85/100= 15,3 $ ( the sale price)

II. The discount is 15 % of 18$
15*18/100= 2,7$  ( the discount)
then I decrease it from the regularly price
18$-2,7$=15,3 $ (the sale price)

Personally I believe the first is an easier method.
I hope you understand and you can apply this in every similary problem.



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The inverse function of the function f(x) will be f⁻¹(x) = 4x + 48. Then the correct option is D.

The complete question is attached below.

<h3>What is inverse of a function?</h3>

Suppose that the given function is

f: X → Y

Then, if function 'f' is one-to-one and onto function (a needed condition for inverses to exist), then, the inverse of the considered function is

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The function is given below.

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Then the inverse function of the function f(x) will be

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Then the correct option is D.

Learn more about inverse function here:

brainly.com/question/19425567

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3 years ago
Will mark brainliest
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Step-by-step explanation:

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Step-by-step explanation:

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3 years ago
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