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hoa [83]
3 years ago
11

A bookstore manager marks down the price of older hardcover books, which originally sell for b dollars, by 42%. Part 1 out of 4

Enter an expression for the markdown using a decimal. The markdown is ..... (Answer this question piece)
Mathematics
1 answer:
BigorU [14]3 years ago
6 0

Answer:

0.42

Step-by-step explanation:

The original price of the old hardcover books was sold for b dollars. But the manager markdown the hardcover books by 42%.

The expression of the markdown using a decimal can be represented below.

Recall the markdown is 42 %. If you want to convert from percentage to a decimal, you have to move the decimal point two places to the left . The percentage sign is removed at this stage and the value is represent in decimal.  Or you can just divide the percentage value by 100.

In our case the percentage value can be solved as 42/100 = 0.42 in decimal or by just simply moving the decimal points two places to the left which is 0.42.

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Answer:

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Step-by-step explanation:

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3 years ago
What type of function is represented by the table of values below?<br> 8<br> 12<br> 16<br> 20
Dominik [7]

Answer:

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8 0
3 years ago
The difference between the roots of the quadratic equation x2 -14x +q =0 is 6. Find q
Irina-Kira [14]

9514 1404 393

Answer:

  q = 40

Step-by-step explanation:

When the quadratic has roots p and r, it can be factored as ...

  (x -p)(x -r) = x² -(p+r)x +pr

So, the sum of the roots is 14, and their difference is 6. This lets us find the roots from ...

  p + r = 14

  p - r = 6

  2p = 20 . . . add the two equations

  p = 10

  r = 14 -p = 4

The value of interest is then ...

  q = pr = (10)(4)

  q = 40

__

The graph shows the roots to be 4 and 10, as we found.

3 0
3 years ago
Need help with this math lesson
never [62]

Answer: 50.24

3.14 x 4²

3.14 x 16

50.24

8 0
3 years ago
Simplifying the following expression:<br> 6x + 2(3x + 5) + (-9)
Nezavi [6.7K]
= <span>6x + 2(3x + 5) + (-9)
= 6x +6x + 10 - 9
= 12x + 1

In short, Your Final Answer would be 12x + 1

Hope this helps!</span>
3 0
3 years ago
Read 2 more answers
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