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seraphim [82]
3 years ago
11

PLEASE HELP! Which statement is true?

Mathematics
1 answer:
Gekata [30.6K]3 years ago
7 0
2nd one is correct answer
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A hair salon increased their prices by 10%. if a haircut was originally $20,what is the new price?
Dovator [93]

Answer:

22

Step-by-step explanation:

new price = original price + increase

new price = 20 + 20*10%

 Change to decimal form

                 = 20 +20*.10

                  = 20 +2

                   =22

4 0
3 years ago
Total blood cholesterol level was measured for each of
laiz [17]
<h3>Answer: Mean = 218.9.</h3><h3>Median = 229</h3><h3>Mode = Zero mode.</h3>

Step-by-step explanation:

Given blood cholesterol level was measured for each of 8 adults (in mg/dL) are:

264, 191, 160, 148, 262, 212, 268, 246

In order to find the mean, we need to add all those 8 numbers and divide by 8.

Therefore, mean = \frac{264+191+160+148+262+212+268+246}{8} =\frac{1751}{8} =218.9.

<h3>Mean = 218.9.</h3>

In order to find the median, we need to arrange them in ascending order:

148, 160, 191, 212, 246, 262, 264, 268.

The middle most two values are 212 and  246.

Therefore, median = \frac{212+246}{2} =\frac{458}{2} = 229.

<h3>Median = 229.</h3>

\mathrm{The\:mode\:is\:the\:term\:in\:the\:data\:set\:that\:appears\:the\:most.}

\mathrm{If\:there\:is\:more\:than\:one\:term\:that\:appears\:the\:most,\:then\:there\:is\:no\:mode.}

\mathrm{Count\:the\:number\:of\:times\:each\:element\:appears\:in\:the\:list}

\begin{pmatrix}148&160&191&212&246&262&264&268\\ 1&1&1&1&1&1&1&1\end{pmatrix}

\mathrm{The\:most\:common\:element\:is\:not\:unique,\:so\:there\:is\:no\:mode}

<h3>Therefore, Mode = Zero mode.</h3>
5 0
4 years ago
(Middle school math) I just need to know the probabilities for letter a. Thank you.
lisov135 [29]

Answer:

use a tree diagram to get a visual representation over it then calculate you're probability.

4 0
3 years ago
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Which graph matches the following description?
skad [1K]

Answer:

The third image is the correct answer.

Step-by-step explanation:

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HELP FAST FAST FAST PLS ILL LOVE YOU FOREVER &lt;3
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Answer:

5

Step-by-step explanation:

2x5x7=70

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