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3 years ago

The average of six numbers is 4. if the average of two of those numbers is 2, what is the average of the other four numbers

Mathematics

2 answers:

Otrada [13]3 years ago

7 0

The average of the other four numbers must be six because (6 + 2 ) ÷ 2 = 4
Hope this helps!

maksim [4K]3 years ago

7 0

Answer:5

Step-by-step explanation:

Let the 6 numbers be a,b,c,d,e,f

a+b+c+d+e+f ÷6 = 4 (given)

So a+b+c+d+e+f = 6×4 = 24 ------>1

a+b÷2 =2(given)

So a+b = 4 ------->2

so from equation 1 and 2

c+d+e+f= 24 - 4 = 20

So the average of 4 numbers = 20/4 = 5

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The function h(x)=x^2+3 and g(x)=x^2-6 if g(x)=h(x)+k what is the value of k

riadik2000 [5.3K]

Answer:

hello : k = - 9

Step-by-step explanation:

h(x) =x²+3 and g(x) = x² - 6.....(*)

g(x) = x² +3 + k.....(**)

by (*) and (**) : 3+k = -6

3+k - 3 = - 6 - 3

k = - 9

8 0

3 years ago

7(x + 4) + 5(x-6) please expand and simplify

Neporo4naja [7]

Answer:

12x − 2

Step-by-step explanation:

7(x+4)+5(x−6)

Distribute:

=(7)(x) + (7)(4) + (5)(x) + (5)(−6)

=7x + 28 + 5x − 30

Combine Like Terms:

=7x + 28 + 5x − 30

=(7x+5x) + (28−30)

= 12x − 2

8 0

3 years ago

Read 2 more answers

What is the missing number in the pattern above? 12,84,588,___,28,812

lara31 [8.8K]

Answer:

4,116

Step-by-step explanation:

Multiply by 7

12x7=84

84x7=588

and 588x7=4,116

So there's your answer 4,116

8 0

3 years ago

Plz help me people guys xx :)

kaheart [24]

Answer:

48.9

Step-by-step explanation:

Subtract 2 from 99.8 = 97.8

Divide 97.8 by 2 - 48.9

6 0

3 years ago

The table gives the average age of airplanes per airline at Camila’s local airport. By what percent is the number of airlines wi

VladimirAG [237]

The percentage that the number of airlines with an average airplane age of 14 is less than the number of airlines with an average airplane age of 11 is:

B. 20%.

<h3>What is a percentage?</h3>

The percentage of an amount a over a total amount b is given by a multiplied by 100% and divided by b, that is:

$P = \frac{a}{b} \times 100\%$

The percentage of airlines with an average age of 14 years is:

$P = \frac{2}{15} \times 100\% = 13.33\%$

The percentage of airlines with an average age of 11 years is:

$P = \frac{5}{15} \times 100\% = 33.33\%$

The difference is:

33.33% - 13.33% = 20%.

Hence option B is correct.

More can be learned about percentages at brainly.com/question/10491646

#SPJ1

6 0

2 years ago