Can someone help me with this problem thank you very much

Mathematics

1 answer:

lara31 [8.8K]3 years ago

7 0

Let's go through this step by step:
The salesperson sells the car for 25% more than the auction price, which is $15,800 + $15,800 * 25% = $19,750. This is the markup price.
The salesperson gets a 25% commission on the <u>difference</u> between the markup price and the original price.
The difference between the markup and the original is $19,750 - $15,800 = $3,950.
25% of this amount is $987.50

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Step-by-step explanation:

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For the series 16, 24, 36, 54,... find S7.

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24 - 16 = 8
36 - 24 = 12
54 - 36 = 18

So, obviously, this isn't an arithmetic sequence.

24/16 = 3/2
36/24 = 3/2
54/36 = 3/2

Aha! This is a geometric sequence.

Now, let's find the 7th term in this sequence!

$a_n = a_1 \cdot r^{n-1}$

We're trying to solve for a_7.
We know that a_1 is 16
We know that n = 7
We know that r = 3/2 or 1.5

Plug it in!

$a_n = a_1 \cdot r^{n-1}\\\\a_7 =16 \cdot 1.5^{7-1}\\\\a_7 = 16 \cdot 1.5^6\\\\a_7 = 16 \cdot 11.390625\\\\\boxed{\bf{ a_7 = 182.25}}$

The seventh term is 182.25

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3 years ago

Let f(x)=x^2+5x−8. What is the average rate of change from x = 2 to x = 6?

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Answer:

does not exist

Step-by-step explanation: