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3 years ago

Which value can be added to the set below without changing its mean?

Mathematics

2 answers:

Ipatiy [6.2K]3 years ago

6 0

The answer you are looking for is B. 15

maksim [4K]3 years ago

3 0

Answer:

value that can be added to the set without changing its mean is:

Step-by-step explanation:

we are given the data set:

{4, 10, 14, 18, 22, 22}

Mean of this set is= (4+10+14+18+22+22)/6

= 90/6

= 15

if we add 0 in this set then

new mean=90/7=12.86

if we add 15 in this list then

new mean = 105/7=15

if we add 16 in this list

new mean=106/15=7.066

if we add 22 in this list

new mean=112/15=7.466

Hence, on adding 15 the mean of the data set do not change

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Item 5Find the percent of the number.175% of 54 is .

max2010maxim [7]

Hello,

The answer is "x=94.5".

Reason:

54/x=100/175
(54/x)*x=(100/175)*x - we multiply both sides of the equation by x
54=0.57142857142857*x - we divide both sides of the equation by (0.57142857142857) to get x
54/0.57142857142857=x
94.5=x
<span>x=94.5

</span>If you need anymore help feel free to ask me!

Hope this helps!

~Nonportrit

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fiasKO [112]

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Umnica [9.8K]

Answer:

Step-by-step explanation:

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3 years ago

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8090 [49]

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4 0

3 years ago

Read 2 more answers

Find value of x, show your work

Zina [86]

Here is your answer

$\huge x=\frac{35}{2}cm= 17.5cm$

REASON :
AB//CD

So,

/_A=/_D ... (alternate int. angles)

/_B=/_C ... (alt. int. angles)

So,

Tri.ABE~Tri.DCE... (by AA similarity)

Therefore,

Corresponding sides are proportional

i.e.

$\frac{AE}{DE}=\frac{AB}{DC}$

$\frac{5}{x}=\frac{4}{14}$

$x=\frac{5×14}{4}$

$x=\frac{5×7}{2}$

$x=\frac{35}{2}$

HOPE IT IS USEFUL

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3 years ago