Mathematics High School

the following are the ages in years of members of group 8, 11, 8,10 ,6, 7, 3x ,11, 11
if the mean age is 9years
find:
1.x
2.find the modal age
3.find the median​

Answers

Answer 1

Answer:

X = 3

Mode: 11median: 9

Step-by-step explanations

3x = 3*2 = 6

(6,7,8,8,9,10,11,11,11)/9 = 81/9 = 9

Answer 2

The value of X = 3

Mode: 11

Median: 9

What are mean and median?

The mean is the average value which can be calculated by dividing the sum of observations by the number of observations

Mean = Sum of observations/the number of observations

Median represents the middle value of the given data when arranged in a particular order.

Mode is that number that appears most frequently in the given set of data.

We are given that  the ages in years of members of group 8, 11, 8,10 ,6, 7, 3x ,11, 11 if the mean age is 9 years

3x = 3(2 )= 6

Mean = (6,7,8,8,9,10,11,11,11)/9

= 81/9

= 9

Learn more about mean and median;

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Related Questions

Lena's Coffee Shop makes a blend that is a mixture of two types of coffee. Type A coffee costs Lena S4.10 per pound, and type B coffee costs $5.95 per
pound. This month's blend used twice as many pounds of type B coffee as type A, for a total cost of $336.00. How many pounds of type A coffee were used?

Answers

Answer: Just bought 21 pounds of coffee A

Step-by-step explanation:

We know that she consumed twice as many pounds of Type                              B coffee as type A.Then let the total number of cafe feet A=x ; then the                              number of cafe feet B=2x . We also know that the total number of feet cost $336

And the fact that one pound of coffee A costs $ 4.1 ; and one pound of coffee B costs $ 5.95

Then :[tex]\large \boldsymbol {} 2x\cdot 5,95 +x\cdot 4,1 =336 \\\\ 11,9x+4,1x=336 \\\\ 16x=336 \\\\ \boxed{x=21}[/tex]

How many 1/4 cup servings are in 4 cups?

Answers

Answer:

16

Step-by-step explanation:

there are 4 1/4 servings in one cup

there are 4 cups so 4×4

Answer:

The answer of this would be 4.

Step-by-step explanation:

1/4 + 1/4 + 1/4 + 1/4 = 4

You bought a package of paper for $3 and some pencils for $2 each at the school store. You paid $15 for everything that you bought. How many pencils did you buy?

Answers

Answer:

6  pencils

Step-by-step explanation:

Total cost = paper * cost of a package + pencils * cost of a pencils

We bought 1 pack of paper at 3 dollars and p pencils at 2 dollars

15  = 1*3 + p*2

15 = 3+2p

Subtract 3 from each side

15-3 = 3+2p-3

12 = 2p

Divide by 2

12/2 = 2p/2

6 = p

√4x^2/3y
Please show work if you can

Answers

Answer:

√16x/3y

Step-by-step explanation:

√4x^2 = √16x /3y = can't be simplified further

what are all the possible ratios that can be made out of 32:56

Answers

Answer: 4:7

Explanation: To find the possible ratio, you first have to divide 32 and 56 into their lowest terms to find your answer. Hope this helps :)

Sonia works at a bakery. The function f(x) represents the amount of money Sonia earns per loaf, where x is the number of loaves she makes. The function g(x) represents the number of bread loaves Sonia bakes per hour, where x is the number of hours she works. Show all work to find f(g(x)), and explain what f(g(x)) represents.
f(x) = 8^2 +4
g of x equals the square root of the quantity 2 x cubed

Answers

Answer:

[tex] f(x)=8x^2+4\\ g(x)=\sqrt{2x^3}\\ f(g(x))=8((\sqrt{2x^3})^2)+4\\=16x^3+4\\=4(4x^3+1)[/tex]

The function f(g(x)) will be f(g(x)) = 4(4x³ + 1) where 'x' is the number of hours.

What is a function?

A function is an assertion, concept, or principle that establishes an association between two variables. Functions may be found throughout mathematics and are essential for the development of significant links.

The functions are given below.

f(x) = 8x² + 4

g(x) = √(2x³)

The function f(g(x)) is calculated as,

f(g(x)) = 8[√(2x³)]² + 4

f(g(x)) = 8[√(2x³)]² + 4

f(g(x)) = 16x³ + 4

f(g(x)) = 4(4x³ + 1)

The function f(g(x)) will be f(g(x)) = 4(4x³ + 1) where 'x' is the number of hours.

More about the function link is given below.

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priya has a choice for banana bread. she uses 7 1/2 cups of flour to make 3 loaves of bread.
andre will follow the same recipe. he will make b loaves of banana bread using f cups of flour. which of these equations represents the relationships between b and f

b=9/2 f
b=5/2 f
b=2/5 f
b=2/9 f

Answers

Answer:

b=2/5 F

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Answers

Answer: 3/2

Step-by-step explanation:

A can of soft drinks is $1.50 and a bottle of juice is $ 2.80 .what would it cost to buy two cans of soft drinks and a bottle of juice ?

Answers

$5.80 is the correct answer because 1.5(2)=3+2.8=5.8

y=2x =2 and y2= 4x+4

Answers

Answer:

x=−2

y=−4

y²  =−2

Step-by-step explanation:

Im going to assume youre saying to compare the two

if so, then theyre the same equation/line

2y =4x +4 is the same y = 2x + 2 since 2y = 4x + 4 is just y=2x+2 but everything is multiplied by 2

hope this helps :)

In a class of 46 students, there are 10 more girls than boys?

Answers

Answer:

28 girls

18 boys

Step-by-step explanation:

46-10=36

36÷2=18

18+10=28

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Answers

Answer:

angle NOR and SRO

Step-by-step explanation:

For each graph below, state whether it represents a function. HELP!! ​

Answers

1.Yes 2.No 3.Yes 4.Yes 5.No 6.Yes

Rewrite the quadratic function in standard form,
f(x)=3x^2-4x

Answers

Answer:

x(3x-4)

Step-by-step explanation:

-b/2(1) I think this is the formula

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Answers

Answer:

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Step-by-step explanation:

Answer: 33/16

Step-by-step explanation:  2*16 = 32...      32+1= 33

1. Refer to the equation 2x − 4y = 12.
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Answers

First, you rearrange the equation to = y.

Next, you choose a set of 4 points as your x values.

Then, plug in your x values to the rearranged equation (which I boxed in). What results are your corresponding y values.

Lastly, to check work plug in your x and corresponding y values to the original equation to make sure they all = 12.

Here’s the work written out:

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Answers

Answer:

sleep most definitely worth it

Answer:

heyyy

Step-by-step explanation:

I eat and watch TV. i also like drawing, and math a lot so i do those things too. I also kinda like sudoku LOL

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Answers

Answer:

A and C

Step-by-step explanation:

Answer:

a and c are right

Step-by-step explanation:

the base must be the number and the exponent is how many times it is multiplied

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Answers

Answer:

I think it is y=-3

Step-by-step explanation:

Answer:

y=-3

Step-by-step explanation:

what is 0.95 as a simplified fraction?

Answers

Answer:

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Step-by-step explanation:

A "simplified fraction" in this case is the ratio of two integers.

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Answers

Answer:

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Step-by-step explanation:

Let's call the original price of the jacket "x".

If the new cost of the jacket is $87, we can represent this as x/2-8=87. By solving for x, we see that the original price of the jacket is $190

Answer:

I think the answer would be 182

Step-by-step explanation:

87x2= 174

174+8= 182

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2,563

Answers

The digit in the hundreds place would be 5.

The digit in the tens place would be 6.

Good luck.

Answer:

hundreds: 5

tens: 6

Step-by-step explanation:

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Answers

I’m not sure if this is right I hope it helps but you weren’t five to the right with the negative one to the four so you have to go five to the left making it -6 for the first coordinate and then he went 13 to the left for the second coordinate so you have to go 13 to the right 6+13 is 19. So your answer is -6, 19 hope this helps!

A store is having a sale where all shoes are discounted by 25%. Diego has a coupon for 2% off of the regular price for one pair of shoes. The store first applies the reduced price. If Diego pays $24.38 for a pair of shoes, what was the original price before the sale and without the coupon?

Answers

Answer:

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Step-by-step explanation:

There are 300 people attending a conference. If each table at the conference can seat 3 people, how many tables will the conference need?

Answers

Answer:

100

Step-by-step explanation:

300 divided by 3

the 300 people would by divided into groups of three which means there would by 100 tables

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Answers

Answer:

Step-by-step explanation:

(5x +x^4) -((3x^4 )+4x), open the parenthesis and distribute the negative sign

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(-2x^4) +x

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Answers

Answer:

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Answers

Answer:

23

Step-by-step explanation:

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Answers

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Step-by-step explanation:

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Answers

Answer:

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2: 85

3: 95

4: 85

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