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bekas [8.4K]
3 years ago
14

HELPEHELP

Mathematics
1 answer:
xz_007 [3.2K]3 years ago
3 0

Answer:

The equation should be 2.5x+1.8=59.3

Step-by-step explanation:

First, subtract the 1.8 dollars from the 59.3. You will get 57.5. Divide it by 2.5 and you will get the number 21 as x.

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The Wikipedia article on the length of dictionaries suggests there are 171,476 unique words in the English language. How many un
katrin2010 [14]

Answer:

806 million years

Step-by-step explanation:

From the information given:

Firstly, we need to determine the no. of ways we can choose n many words in the dictionary & array them in (^{171476}_{n}) * n! ways.

Thus, the no. of unique books possible of length till K is:

\sum \limits^k _{n=0} ( ^{171476}_{n}) * n! \\ \\ = \sum \limits ^k_{n=0} \dfrac{171476!}{(171476-n)!}

where K = 6, we have the value to be:

= 25420530373932821216635722990977

Thus, the time required to write all possible texts of 6 is:

=  (25420530373932821216635722990977)/10⁶

≅ 806 million years.

8 0
3 years ago
Please show work thanks!
Ainat [17]
Masha's speed was 4 km/h

5 0
4 years ago
Read 2 more answers
No link or bot answer the question
sesenic [268]

Hello there! :)

\sqrt{81}

It's rational

it's an integer

Hope it helps!

~Just an emotional teen listening to her favorite song "Try Everything"

SilentNature

6 0
3 years ago
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Which represents the solution(s) of the system of equations, y = x2 - 2x - 15 and y = 8x - 40? Determine the solution set
suter [353]

Answer:no solution??

8 0
3 years ago
Find the selling price of a $20 item after a 20% markup.
nevsk [136]

Answer:

$24

Step-by-step explanation:

For a markup, use the formula <em>a = ( 1 + p ) × w. </em>

!!! Remember, <em>a </em>is the selling price, and <em>w </em>is the original price !!!

!!! The <em>p </em>is the percent in decimal form. 20% as a decimal is 0.20 (move the decimal twice to the left) !!!

<em />

Inserting the values, it should look like <em>a = ( 1 + 0.20 ) × 20 </em>

<em>a = 1.20 × 20 </em>

<em>a = 24</em>

<em />

Hence, the new selling price is $24.

Hope this helps! :)

4 0
3 years ago
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