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3 years ago

The cost of a skateboard is $60. it went on sale and is now 33% off. what is the amount of the skateboard now?

Mathematics

2 answers:

katrin2010 [14]3 years ago

6 0

$19.8 change into decimal and times by the original

Law Incorporation [45]3 years ago

4 0

To find the answer for this question, you need to convert your percent to a fraction. (33/100) You will multiply 60 by 33/100, and get 19.8. That shows you the discount you are getting. Finally, you need to subtract 19.8 from 60, getting you a final answer of $40.2.

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For this case we have the following functions:

$p (x) = x ^ 2-1\\9 (x) = 5 (x-1)$

We must find $(p-9) (x).$ By definition of composition of functions we have:

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$(p-9) (x) = x ^ 2-1- [5 (x-1)] = (x ^ 2-1) -5 (x-1)$

Thus, the correct option is option C.

Answer:

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Option C

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