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3 years ago

Cost of a comic book $3.95 markup 20%

2 answers:

5 0

If you mean the price is now 120% of the original, $4.74 (3.95 * 0.8) is the new price.

If you mean the price is now 80% of the original, $3.16 (3.95 * 1.2) is the new price.

Galina-37 [17]3 years ago

3 0

3.95x20=79/100=0.79

3.95
+ 0.79
_____
4.74 is the new price

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Lisa [10]

Answer:

26 * 26^8 = 26^9

Step-by-step explanation:

Here, we want to write 26 * 26^8 in exponential form.

26* 26^8 is same as 26^1 * 26^8

According to the first law of indices, we are going to add the powers together;

Thus, this gives ; 26^(1 + 8) = 26^9

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Answer:

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y = mx + b

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3 years ago

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3 years ago

What is the solution to this equation 1/2n^2+18=0

ololo11 [35]

Answer:

n = ±6 .

Step-by-step explanation:

A quadratic equation is given to us and we need to find out the solution of the given equation . The given equation is ,

$\rm\implies -\dfrac{1}{2}n^2+18=0$

Subtracting 18 both sides ,

$\rm\implies -\dfrac{1}{2}n^2 = -18$

Multiplying both sides by -2 ,

$\rm\implies -2\times\dfrac{1}{2}n^2 = -2\times -18$

On simplyfing , we get ,

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Putting squareroot both sides ,

$\rm\implies n= \sqrt{36}$

This equals to ,

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Hence the value of n is ±6 .

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