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user100 [1]
3 years ago
14

Chelsea spent $26 on a magazine and some notepads. If the magazine cost $2 and each notepad cost $4, then how many notepads did

she buy?
Mathematics
2 answers:
miss Akunina [59]3 years ago
7 0

Answer:

6

Step-by-step explanation:

i did

26-2=24 because one magazine is $2 and she only got one

then i

24/4=6 because the rest of her money was used for the notepads.

i hope that makes sense.

sesenic [268]3 years ago
6 0

Answer:

6

Step-by-step explanation:

26-2=24  24/4=6

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Find the limit, if it exists. (If an answer does not exist, enter DNE.)
lys-0071 [83]

let's change some the 0.1 to say 1/10, just the fraction version of it.

\bf \lim\limits_{x\to \left( \frac{1}{10} \right)^-}~\cfrac{10x-1}{|10x^3-x^2|}\implies \lim\limits_{x\to \left( \frac{1}{10} \right)^-}~\cfrac{10(-x)-1}{10(-x)^3-(-x)^2}

\bf \cfrac{-10x-1}{-10x^3-x^2}\implies \cfrac{-10\left( \frac{1}{10} \right)-1}{-10\left( \frac{1}{10} \right)^3-\left( \frac{1}{10} \right)^2}\implies \cfrac{-1-1}{-\frac{1}{100}-\frac{1}{100}}\implies \cfrac{-2}{\frac{-2}{100}} \\\\\\ \cfrac{~~\begin{matrix} -2 \\[-0.7em]\cline{1-1}\\[-5pt]\end{matrix}~~}{1}\cdot \cfrac{100}{~~\begin{matrix} -2 \\[-0.7em]\cline{1-1}\\[-5pt]\end{matrix}~~}\implies 100

when checking an absolute value expression, we do the one-sided limits, since an absolute value expression is in effect a piecewise function with ± versions, so for the limit from the left we check the negative version.

8 0
3 years ago
While I was jogging I was able to run 5 miles in 30 minutes from this information we can determine my?
Vikentia [17]
You can determine your speed that is Speed = (distance/Time). Mind you in this cast time should be in hour, so 30 min - 1/2 hour or 0.5 Hour

Your speed is 5/0.5 = 10 mi/hour
6 0
3 years ago
The following six independent length measurements were made (in feet) for a line: 736.352, 736.363, 736.375, 736.324, 736.358, a
horrorfan [7]

Answer:

Assuming population data

\sigma = \sqrt{0.000354}=0.0188

Assuming sample data

s = \sqrt{0.000425}=0.0206

Step-by-step explanation:

For this case we have the following data given:

736.352, 736.363, 736.375, 736.324, 736.358, and 736.383.

The first step in order to calculate the standard deviation is calculate the mean.

Assuming population data

\mu = \frac{\sum_{i=1}^6 X_i}{6}

The value for the mean would be:

\mu = \frac{736.352+736.363+736.375+736.324+736.358+736.383}{6}=736.359

And the population variance would be given by:

\sigma^2 = \frac{\sum_{i=1}^6 (x_i-\bar x)}{6}

And we got \sigma^2 =0.000354

And the deviation would be just the square root of the variance:

\sigma = \sqrt{0.000354}=0.0188

Assuming sample data

\bar X = \frac{\sum_{i=1}^6 X_i}{6}

The value for the mean would be:

\bar X = \frac{736.352+736.363+736.375+736.324+736.358+736.383}{6}=736.359

And the population variance would be given by:

s^2 = \frac{\sum_{i=1}^6 (x_i-\bar x)}{6-1}

And we got s^2 =0.000425

And the deviation would be just the square root of the variance:

s = \sqrt{0.000425}=0.0206

6 0
3 years ago
TELL ME THE POINTS TO GRAPH TO BE MARKED BRAINLIEST
scoundrel [369]
Solve by elimination
multiply top by -1

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2(6) - y = 4
12-y = 4
-8 = -y
so y = 8

(-6,8)

6 0
3 years ago
A ferris wheel is drawn on a coordinate plane so that the first car is located at the point ​(0​,40​). What are the coordinates
natulia [17]

Answer:

(40,0)

Step-by-step explanation:

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(x,y)\rightarrow (y,-x)

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According to the given rule, the image point after a rotation of 270 degrees° counterclockwise about the​ origin have the coordinates (40,0) (see attached diagram for details).

4 0
3 years ago
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