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2 years ago

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

Mathematics

2 answers:

Ipatiy [6.2K]2 years ago

6 0

The answer you are looking for is B. 15

maksim [4K]2 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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Twenty gremlins and fifteen imps are at the Annual Mischief Convention. The imps have had a lot of in-fighting lately and refuse

harina [27]

Answer:

490

Step-by-step explanation:

Let us first count the handshakes between two gremlins. There are 20 gremlins, so there must be 20*19/2=190 handshakes between two gremlins, making sure to divide by two to avoid over-counting.

There are 15 imps that shake hands with each of the 20 gremlins, which makes 15* 20 = 300 handshakes between imps and gremlins.

Adding these up, you have $300 + 190 = 490 total handshakes.

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3 years ago

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3 years ago

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1 year ago

Work out m and c for the line: y = 8 x

Ivan

Answer:

m = 8 and c = 0

Step-by-step explanation:

The equation of a line in slope- intercept form is

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3 years ago

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