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ankoles [38]
3 years ago
15

Average of 6 numbers is 4, if the average of 2 numbers is 2 what is the average of other 4

Mathematics
1 answer:
RideAnS [48]3 years ago
4 0

Answer:

5

Step-by-step explanation:

Let's just pretend the 6 numbers are: a,b,c,d,e,f.

Then (a+b+c+d+e+f)/6 =4 (given by first statement.)

Let's pretend the average of 2 numbers is 2 means they are talking about the a and b.

So (a+b)/2=2.

Now we want to find (c+d+e+f)/4 as requested by their question.

So first step multiply both sides of our first equation by 6 giving us:

a+b+c+d+e+f=24

So the second step multiply both sides of our second equation by 2 giving us:

a+b=4.

Now if a+b+c+d+e+f=24 and a+b=4, then c+d+e+f=20 since 20+4=24.

So the average of the four numbers c,d,e, and f is 20/4=5.

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Kimora’s cell phone company charges her $35 a month for phone service plus $.05 for each text message sent. How many text messag
professor190 [17]

Given that Kimora’s cell phone company charges her $35 a month for phone service plus $.05 for each text message sent.

Kimora's cell phone bill for one month is $52.

We need to determine the number of text messages Kimora sent for one month.

Also, we need to write and equation and solve it.

<u>The equation:</u>

Let x denote the number of text messages Kimora sent for one month.

Thus, the equation is given by

35+0.05x=52

Therefore, the equation for the number of text messages Kimora sent for one month is 35+0.05x=52

<u>Solving the equation:</u>

We need to solve the equation 35+0.05x=52

Subtracting both sides of the equation by 35, we get;

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Dividing both sides of the equation by 0.05, we get;

x=340

Therefore, the number of messages sent is 340.

3 0
3 years ago
For each sequence find the first 4 terms and the 10th term
jolli1 [7]

Answer:For these, n is equal to the term you want. So you substitute the number in for whichever term you want. This means:

a) 1 (1st term) + 5 = 6

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4 (4th term) + 5 = 9

10 (10th term) + 5 = 15

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b) 2(1) - 1 = (2x1) - 1 = 1

2(2) - 1 = (2x2) - 1 = 3

2(3) - 1 = (2x3) - 1 = 5

2(4) - 1 = (2x4) - 1 = 7

2(10) - 1 = (2x10) - 1 = 19

Hope this helps :)

4 0
3 years ago
there are 36 people in the newtown hiking club. 2/3 of the club must vote yes if the club is to hike the northern trail. 20 peop
ivolga24 [154]
36/3=12
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4 more votes are needed
3 0
3 years ago
What is the volume of a sphere that has a radius of 6
Leya [2.2K]

Answer:288pi

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8 0
3 years ago
Read 2 more answers
|r|=-2 solve the equation and graph the solution if possible
S_A_V [24]
That bracket symbol, with an r in it, means "the absolute value of r". 
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r= 2
6 0
3 years ago
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