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bagirrra123 [75]

3 years ago

11

What is the median of 154 119 139 115 152 140 154 120 143 103 126 126 137 165 165 129 100 148

1 answer:

Bumek [7]3 years ago

6 0

The median is 138. First you arrange the numbers in order: 100,103,115,119,120,126,126,129,137,139,140,143,148,152,154,154,165,165. Next you find the middle of the set of number, which is 137 and 139. Next, you need to find the middle of those number, so add 137 and 139 to get 276. Finally you divide them by 2 to get 138.

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Can someone please explain to me step by step how to solve this problem. <br><br> 4y-(3+y);y=2

avanturin [10]

Answer:

The answer is 3

Step-by-step explanation:

Plug in 2 for all the y variables and solve:

4(2)-(3+2)=

8-5=3

5 0

3 years ago

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Solve for x:<br> -1/3(4x+2)=1/3(x+11)<br><br> A. -13/3<br> B. -3<br> C. -13/5<br> D. -9/5

Nataly_w [17]

X=-13/5

Simplify both sides of the equation, isolate the variable, and then you get your answer.

7 0

3 years ago

Which could be used to evaluate the expression -6(4 2/3)

olasank [31]

Answer:

-28

Step-by-step explanation:

4 2/3=14/3

-6(14/3)=-2*14=-28

6 0

3 years ago

The marketing manager of a large supermarket chain would like to use shelf space to predict the sales of pet food. For a random

Pavlova-9 [17]

Answer:

$m=\frac{27.75}{375}=0.074$

Nowe we can find the means for x and y like this:

$\bar x= \frac{\sum x_i}{n}=\frac{150}{12}=12.5$

$\bar y= \frac{\sum y_i}{n}=\frac{28.5}{12}=2.375$

And we can find the intercept using this:

$b=\bar y -m \bar x=2.375-(0.074*12.5)=1.45$

So the line would be given by:

$y=0.074 x +1.45$

C. = 1.45 + 0.074x

Step-by-step explanation:

The data given is:

x: 5,5,510,10,10, 15,15,15, 20,20,20

y: 1.6,2.2,1.4, 1.9, 2.4,2.6, 2.3,2.7, 2.8,2.6, 2.9, 3.1

For this case we need to calculate the slope with the following formula:

$m=\frac{S_{xy}}{S_{xx}}$

Where:

$S_{xy}=\sum_{i=1}^n x_i y_i -\frac{(\sum_{i=1}^n x_i)(\sum_{i=1}^n y_i)}{n}$

$S_{xx}=\sum_{i=1}^n x^2_i -\frac{(\sum_{i=1}^n x_i)^2}{n}$

So we can find the sums like this:

$\sum_{i=1}^n x_i = 150$

$\sum_{i=1}^n y_i =28.5$

$\sum_{i=1}^n x^2_i =2250$

$\sum_{i=1}^n y^2_i =70.69$

$\sum_{i=1}^n x_i y_i =384$

With these we can find the sums:

$S_{xx}=\sum_{i=1}^n x^2_i -\frac{(\sum_{i=1}^n x_i)^2}{n}=2250-\frac{150^2}{12}=375$

$S_{xy}=\sum_{i=1}^n x_i y_i -\frac{(\sum_{i=1}^n x_i)(\sum_{i=1}^n y_i)}{n}=384-\frac{150*28.5}{12}=27.75$

And the slope would be:

$m=\frac{27.75}{375}=0.074$

Nowe we can find the means for x and y like this:

$\bar x= \frac{\sum x_i}{n}=\frac{150}{12}=12.5$

$\bar y= \frac{\sum y_i}{n}=\frac{28.5}{12}=2.375$

And we can find the intercept using this:

$b=\bar y -m \bar x=2.375-(0.074*12.5)=1.45$

So the line would be given by:

$y=0.074 x +1.45$

C. = 1.45 + 0.074x

8 0

3 years ago

Which of these numbers is the greatest? A. 3,213,213 B. 7.8 x 10 C. 6.3 x 10 D. 11,014,114

vichka [17]

Answer:

B

Step-by-step explanation:

7 0

3 years ago

Read 2 more answers