The average age of 7 boys who attend school school is 9 years. If the average age of 4 of the boys is 12 years, find the average age of the remaining boys.

Answers

Answer 1

Step-by-step explanation:

The average age of 29 % boys who attend school.

Answer 2

Answer: The average age of 6 students is 11 years. If two more students of age 14 and 16 years join, their average.

Step-by-step explanation:


Related Questions

19. A pet shop owner bought 320 leashes. 30% of these leashes were pink leashes and the rest were blue and green leashes. The number of blue leashes is 3 times the number of green leashes. How many blue leashes did she buy?

Answers

The number of the blue leashes will be 240.

What are linear equations?

It is defined as the relation between two variables, if we plot the graph of the linear equation we will get a straight line.

It is given that:-

A pet shop owner bought 320 leashes. 30% of these leashes were pink leashes and the rest were blue and green leashes.The number of blue leashes is 3 times the number of green leashes.

The number of the blue leashes will be calculated as:-

L     =    320

B   +    P   +   g   =   320

{ (320  x   0.3 ) } + 0.7 ( B  +  g ) =  320

( 96 )  +   ( 2.8g )   =   320

2.8g   =   320 / 96

g   =   222  /  2.8  =  80

Now  B  =   3  x  g

B   =   3   x   80

B   =   240

Therefore the number of the blue leashes will be 240.

To know more about equations follow

https://brainly.com/question/2972832

#SPJ1

^^ Please answer it!

Answers

Answer: 5446cm^2

Reasoning: 2(47 x 37) + 2(35 x 12) + (47 x 24) = 5446
Answer would be 5446 cm squared

The student council at DMS is selling t-shirts for spirit week. The company they have chosen to make the shirts charges a one-time design fee of $50. The t-shirts will cost $5.25 per shirt. If the school collects $1362.50 for the shirts were sold?

Answers

I suppose it asks for how many have been sold.

So we have $50 for design fees.. then $5.25/shirt..

The total is $55.25 per shirt.

We divide $1362.50 to $55.25 and we get 24 shirts with $36 set loose.

Answer:

YA

Step-by-step explanation:

William has 5 black t-shirts and 7 white t-shirts If he randomly selects a t-shirt to wear, what is the probability that it is black? Write the probability as a fraction in simplest form, as a decimal, and as a percent.

Answers

The answer is 5/12 ! Because there are 12 shirts in total and 5 black shirts so there is a 5 out of 12 chance that he would wear a black t-shirt.

Answer:

a) as a simplest fraction in the simplest form, the answer would be 5/12

b) as a decimal it would be 0.41

c) as a percentage it would be 41.67%

How do you find the area of a hexagon?
(You can use any hexagon. It's too confusing for me.)

Answers

Step-by-step explanation:

To the find the area of regular hexagon,

the foumula that is used is, (3√3 s2)/2

[tex]3 \sqrt{3} \: s 2 \div 2 \\ [/tex]

here, s is the measure of one side of the hexagon

(one side because, all sides are equal in a regular hexagon)

hope it helps!!!

PLEASE MARK BRAINLIEST ♡

to find the area of a hexagon you would use the formula (n-2)•180 and the (n) would be 6 because a hexagon has 6 sides so (6-2)= 4 and then 4•180 is 720. 720 is the area and you can do this with any polygon i believe

Deli ham was on sale for $3.29 per pound. Maria's order weighed 1.2 pounds. To the nearest penny, what will Maria’s ham cost?

Please help

Answers

Answer:

365

Step-by-step explanation:

365 I’m pretty sure

Please please help! worth lot of points! Will give brainly if you anser both quetions! need this done ASAP!

1. What is the missing value in the ratio table?
7.2
1.2
10.8
6
2. What is the balance point of the data set?
4
6
9
36

Answers

Answer:

I Only know the first answer and it's 7.2

Step-by-step explanation:

when we look at the ratio table we see that for every 1x our y goes up 1.2

So, 2.4, 3.6, 4.8, 6.0, 7.2

7.2 is your answer.

Answer:

1. What is the missing value in the ratio table?

7.2

1.2

10.8

6

Step-by-step explanation:

I need help on this please!

Answers

Answer:

2.15 or 2

Step-by-step explanation:

2.15 or 2 (Hope it helps)

The bar graph shows the results of spinning a spinner 100 times. Use the bar graph to find the experimental probability of not spinning a 5.
PLEASE QUICK

Answers

Answer:

81%

Step-by-step explanation:

1.

We know that the probability of spinning a five is 19% since:

19/100 = 0.19 = 19%

However, we are looking for the probability of NOT spinning a five.  So, we will have to find the probability sum of the remaining numbers (1, 2, 3 and 4).

2.

- The probability of spinning a one is 20% since:

20/100 = 0.2 = 20%

- The probability of spinning a two is 18% since:

18/100 = 0.18 = 18%

- The probability of spinning a three is 22% since:

22/100 = 0.22 = 22%

- The probability of spinning a four is 21% since:

21/100 = 0.21 = 21%

3.

Now we will add all of these probabilities together to find the total probability of NOT spinning a five!

20% + 18% + 22% + 21% = 81%

Therefore, the probability of not spinning a five is 81%.

(While writing all of this down, I realized it was completely unnecessary)

Basically, the total probability of all of these numbers is equal to 100%.  The probability of spinning a five is 19% as we inquired above.  Therefore, all we need to do is subtract 19% from 100%!

100% - 19% = 81%

According to the graph, there is a 81% chance of not rolling the 5. If it is 19% 5’s then 100 - 19 = 81.

whats the answer
i dont know this

Answers

Answer:

9.2

Step-by-step explanation:

a^2 + b^2 = c^2 (pythogoras theorem)

7^2 + 6^2 = 85

Square root of 85 = 9.2 ( nearest tenth)

I think this is right if not srry :(

why are conclusions about a population more likely to be correct when they are based on random samples that are not random.

Answers

Answer:

1) Sampling error leads to mostly variability, nonsampling errors lead to bias. 2) Because of nonsampling error, a sample is often more accurate than a CENSUS.

Step-by-step explanation:

Conclusion’s about a population are more likely to be correct because there is less variability then there is in a random sample

HELP!! WILL MARK AS BRANLIST

Answers

Answer:

I think all of those are correct.

Step-by-step explanation:

Not sure on what you need help with...

What is exactly that you up need help with on?
If you are trying to look for exact specific answers, try using:
Quizlet
Chegg
MyStudy.Com

These will obviously give you the efficient answer.
Thank me later mate

1. What is the probability of spinning a multiple of 2 and flipping heads?

Answers

You have 1/2 of a chance
2/4 chance because x+2/4=#%q1/2

A researcher weighed pumpkins grown across a certain region. The data are rounded to the nearest pound and displayed in this histogram.

What does the second bin represent?

Select from the drop-down menu to correctly complete the statement.

Sixteen pumpkins weigh

more than 2.4 pounds but no more than 4.8 pounds
more than 2.4 pounds but no less than 4.8 pounds
at least 2.4 pounds but no more than 4.8 pounds
at least 2.4 pounds but less than 4.8 pounds

Answers

at least 2.4 pounds but no more than 4.8 pounds
At least 2.4 no more then 4.8 pounds hope this helps

1. Interpret a Solution What does the area of the parallelogram represent? Explain.

Answers

The area of a parallelogram is the space enclosed within its four sides. Area is equal to the product of length and height of the parallelogram. The sum of the interior angles in a quadrilateral is 360 degrees. A parallelogram has two pairs of parallel sides with equal measures

Someone told me to get it done so im asking brainly

Answers

The didn’t distribute the -6 properly to the fraction the second part of solving should have been -6(4x)+((-6)-2/13)
No because a negative times a negative = a positive and they left the 12/13 negative when it should’ve been changed to positive

I'm literally about to have state testing in an hour. Should I take caffeine?

Answers

Answer:

It depends, really.

Step-by-step explanation:

Caffeine will give you kick for a short time but then can make you sleepy.
Take a glass of water for sure

Pls help
How do u find the area of this figure

Answers

To find this, you have to cut the figure into familiar shapes. In this case, you can cut it into two rectangles. When you cut it, there is a missing measurement, which is the length for the small rectangle. To find that, you subtract the other two lengths given, which is 8 and 6, and thats the length for the small rectangle. Then you do l•w for both shapes.

Answer:

The answer is 52 in²

Step-by-step explanation:

You can't find the area of it all at once so you must cut it in have to have two shapes like in the picture above and then name them A and B

Now for the shapes we must use the formula Area= Lentgh times Breath

Shape A: A= L x B

8 x 6 = 48 in²

Shape B : A= L x B

2 x 2= 4 in²

now add 48 plus 4 = 52 in²

Hope this helps!

what is the measure of ∠x

Answers

Step-by-step explanation:

Here x and 80° are supplementary angle so...

x + 80° = 180°

x = 180° - 80°

x = 100°

One half of one tenth is what fraction?

Answers

Answer:  1/20  or  one twentieth

Work Shown:

1/2 = one half

1/10 = one tenth

(1/2)*(1/10) = (1*1)/(2*10) = 1/20

Basically we multiply the 2 and 10 to get 20 in the denominator.

The correct answer is 0.05 or 1/20

2 1/3 x 3 equals a whole number. How do you multiply and simplify it?

Answers

Answer: 7

Step-by-step explanation: First convert to a decimal. So 2 and 1/3 is 2.33.

Then multiply 2.33x3

We get 6.99.

Round up to 7 because we initially started with a fraction.

Hope this helped!
First convert the 2 1/3 to a improper fraction. Multiply the whole number by 3 then add the numerator. 2 • 3 = 6. + 1 = 7. Denominator stays the same. 7/3. 7/3 • 3. Since the denominator is 3 and it’s multiplied by 3 they cancel out because that’s the greatest common factor.

Pls help me with this i dont know how to do it

Answers

1/2 * base * height
=1/2 * 8 * 15
= 1/2 * 120
= 60 units ²

Answer:

60 units²

Step-by-step explanation:

Area of triangle is [tex]\frac{1}{2}[/tex]×b×h

b is the length of the base of the triangle

h is the height/altitude of the triangle

considering, you are given the base and height, inserting it into the formula will solve the problem.

WILL MARK BRIANLEST!!!!!!!!!! Find the relationship between the quantities in the table. Then use the relationship to calculate the missing value in the table.


A 2-column table with 4 rows. Column 1 is labeled x with entries 1, 2, 3, 4. Column 2 is labeled y with entries 9, 18, A, 36.


The relationship between the quantities in the table is x

+ 16

equals y.

A =

Answers

Answer: A=9

Step-by-step explanation:

The equation for this table is x+16 =Y.

To solve for Y, we must plug in. (in other words, substitute the letters with (known) numbers).

A is in the 3rd row under the Y column. Hence, we will use the X value found in the same row, which is 3.

A= x+16

A= 3+16

A= 19

Hope this helps :)), brainliest would be appreciated :D

A is equal to 19 hhhhhhhhhhhhh

50. Insert three geometric means between 2 and 512.

Answers

the three geometric means between 3 and 512 are…


8, 32, 128

OR

-8, 32, -128

Identity the correct weight to the nearest 1/8 pound,then reduce the fraction if possible,which of the following would a scale be used to measure

Answers

Answer:for the 3rd ques the answer is number 2

Step-by-step explanation:

Convert 0.ModifyingAbove 393 with bar into a fraction. 1. Assign a decimal to a variable: x = 0.ModifyingAbove 393 with bar. 2. It has 3 repeating digits. Multiply by 10 Superscript 3: (1000) x = 0.ModifyingAbove 393 with bar (1000). 1000 x = 393.ModifyingAbove 393 with bar. minus (x = 0.Modifyingabove 393 with bar). 999 x = 393. 1. Solve for x: x = question mark. Solve for the value of x: What is x = 0.ModifyingAbove 393 with bar as a fraction?


x =

ANSWER; x = 131/333

Answers

Answer:

[tex]x=\dfrac{131}{333}[/tex]

Step-by-step explanation:

Assign the decimal to a variable:

Let  [tex]x=0.\overline{393}[/tex]

Multiply both sides by 1000:

[tex]\implies x \cdot 1000=0.\overline{393} \cdot 1000[/tex]

[tex]\implies 1000x=393.\overline{393}[/tex]

Subtract the first equation from the second to eliminate the part after the decimal:

[tex]\begin{array}{r r c r}& 1000x & = & 393.\overline{393} \\\\- & x & = & 0.\overline{393} \\\\\cline{2-4} \\& 999x & = & 393 \\\end{array}[/tex]

Divide both sides by 999:

[tex]\implies \dfrac{999x}{999}=\dfrac{393}{999}[/tex]

[tex]\implies x=\dfrac{393}{999}[/tex]

Reduce the fraction:

[tex]\implies x=\dfrac{393 \div 3}{999 \div 3}[/tex]

[tex]\implies x=\dfrac{131}{333}[/tex]

131/333 ………….zzzssssss

Write and solve a proportion to answer the question. (Skills Review Handbook) 20. What percent of 60 is 18?

Answers

Answer:

30%

Step-by-step explanation:

1) Set a linear equation

[tex] \frac{18}{60} = \frac{x}{100} [/tex]

2) Cross multiply

[tex]60x = 18 \times 100[/tex]

3) Multiple the right side

[tex]60x = 1800[/tex]

4) Divide both side by 60

[tex] \frac{60x}{60} = \frac{1800}{60} [/tex]

5) Solve the linear quation

[tex]x = 30[/tex]

The 30% of 60 is 18

500 people are asked to name their favorite color. The results of this survey are shown in the pie chart below:

Each sector of the pie chart makes an angle at the center. For example, the yellow sector makes an 18 degree angle, since 18 degrees is 5% of 360 degrees.

If we consider only the people who named a rainbow color (red, orange, yellow, green, blue, or purple), what percentage of those people preferred red?

Answers

Answer:

20%

Step-by-step explanation:

Method 1

Percentage of people who preferred red:

= 13%

Percentage of people who named a rainbow color:

= 13 % + 4% + 5% + 15% + 16% + 12%

= 65%

Percentage of people who preferred red from those who named a rainbow color:

= (13% ÷ 65%) × 100

= 20%

Method 2

Number of people who preferred red:

= 13% of 500

= 13% × 500

= 0.13 × 500

= 65

                                                       

Percentage of people who named a rainbow color:

= 13 % + 4% + 5% + 15% + 16% + 12%

= 65%

Number of people who named a rainbow color:

= 65% of 500

= 65% × 500

= 0.65 × 500

= 325

Percentage of people who preferred red from those who named a rainbow color:

= (number who preferred red ÷ number named rainbow color) × 100

= (65 ÷ 325) × 100

= 20%

Pls Brainliest!

Answer:

20%

Step-by-step explanation:

The rainbow colors add up to 13 + 4 + 5 + 15 + 16 + 12 = 65 percent of the pie chart. So, 65% ∙ 500 = 325 people in the survey named a rainbow color. Of these, 13% ∙ 500 = 65 named red.

Therefore, if we consider only the 325 people who named a rainbow color, the percentage of those people who preferred red is

65/325 = 1/5 = 20%

(You may notice that the answer would still be 20% even if the total number of people in the survey were some number other than 500. This is because 13% is 20% of 65%, no matter what these are percentages of!)

Sketching a Hyperbola In Exercises 19-32, find the center, vertices, foci, and the equations of the asymptotes of the hyperbola. Then sketch the hyperbola using the asymptotes as an aid.
25. \frac{(x-1)^{2}}{4}-\frac{(y+2)^{2}}{1}=1

Answers

Step-by-step explanation:

her this is the answer for the question

Will give brainiest!! check all of these and help on the ones I haven't done Domain and Range pretty easy.​

Answers

Answer:

functions domain and range

Step-by-step explanation:

well when given a function as based by the graphs given if present with a line that passes the vertical and horizontal line test without touching the same two problems it will always be a function like 32. it would be for range would be y is greater than or equal to 1 and domain being 0 ≤ x ≥ 3

hope this helps and if I'm incorrect I apologize I haven't done this in like 2 years

you got this !! ……………
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