The mean age of 5 people in a room is 37 years.
A person enters the room.
The mean age is now 34.
What is the age of the person who entered the room?

Answers

Answer 1
The answer is 19. 5 x 37 = 185, 6 x 34 = 204. 204 - 185 = 19.

Related Questions

Find the volume of triangular prism. NO LINKS

Answers

Answer:

504

Step-by-step explanation:

number 4, it would help this is a final

Answers

-1,3 and 1.5 or something

a Cone
15.1: Which Has a Larger Volume?
The cone and cylinder have the same height, and the
radii of their bases are equal.
Do you think the volume of the smaller one is more or
less than the volume of the larger one? Explain your
reasoning
8
8

Answers

Answer:

The cylinder has the larger volume. this is because the formula for the volume of a cone and cylinder are the same but the cone has the fraction 1/3.

So, three cones can fit into the cylinder, so it is less then one half

Alex brought 48 cookies to school to celebrate his birthday. He gave 9 to teachers. He then shared equally the remaining cookies with his 18 classmates. How many cookies remained?

Answers

Answer:

3 cookies

Step-by-step explanation:

After he gave nine cookies to teachers,he have 39 cookies left.He shared 36 cookies to his 18 classmates at the rate of 2 cookies per person.Then,3 cookies remained.I may be wrong but,it is answer according to me.

hope it helps u and keep smiling :)

hii! please help asap. i’ll give brainliest

Answers

Answer:

The answer is letter B. the second one

100 ÷ half of 20 = What is the answer and steps Half of 20 means 10 but in BODMAS rule of means multiplication So please tell steps also

Answers

Answer:

it's 10 but i do'nt know the rule i'm sorry

Step-by-step explanation:

A dodecagonal pyramid has a surface area of 130 square inches. A similar dodecagonal pyramid has a surface area of 2080 square inches. If the larger pyramid has a height of 32, what is the height of the smaller dodecagonal pyramid?

Answers

Answer:

8 in.

Step-by-step explanation:

The ratio of the surface areas is equal to the square of the ratio of the heights

Let h = the height of the smaller dodecagonal pyramid

So,  [tex]\frac{2080}{130} = \frac{32^{2}}{h^{2} }[/tex]

[tex]h^{2} = \frac{32^{2} * 130 }{2080}[/tex]

[tex]h^{2} = 64[/tex]

h = 8 in.

PLEASE HELP FAST Looking for the bottom angle to find my answer! 30 POINTS

Answers

I believe it’s 33 degrees

x = 242.7 m

Step-by-step explanation:

First we need to find the angle at one of the parachutists:

180 - 57 - 43 = 80°

We then use sine law to find the distance between the parachutists

[tex] \frac{x}{ \sin(57) } = \frac{285 \: m}{ \sin(80) } [/tex]

Solving for x

[tex]x = (\frac{ \sin(57) }{ \sin(80) } )(285 \: m) = 242.7 \: m[/tex]

The first step when dividing 9m2 − 4m − 6 by 3m is shown. Which could be the next step? 3m − − 3m − − 3m − − 3m − −

Answers

Given:

Consider the below picture attached with this question.

The given expression is:

[tex]\dfrac{9m^2}{3m}-\dfrac{4m}{3m}-\dfrac{6}{3m}[/tex]

To find:

The next step.

Solution:

We have,

[tex]\dfrac{9m^2}{3m}-\dfrac{4m}{3m}-\dfrac{6}{3m}[/tex]

Cancel out the common factors.

[tex]=3m-\dfrac{4}{3}-\dfrac{2}{m}[/tex]

Therefore, the correct option is D.

hii i’ll give brainliest please help thanks :)

Answers

Answer:

b

Step-by-step explanation:

D should be correct :)
I recommend a show you should watch it’s called criminal minds

What is the circumference of a circle with a diameter of 72 feet? Leave your answer in
terms of pi.

Answers

Answer:

72π feet

Step-by-step explanation:

circumference of circle= 2πr

Diameter= 2(radius)

radius of circle

= 72 ÷2

= 36 ft

Circumference

= 2(π)(36)

= 72π ft

Simplify the expression below.

(xy)^8
A.
xy^8
B.
x^8y^8
C.
8xy
D.
8xy^8

Answers

Hopes this helps:

Answer: B. x^8y^8

Have a great day.

frank needs to save $600 to buy a set of golf clubs. He plans to save $75 per month. Write an equation that Frank can solve to determine the amount of money he still has to save (y) in relation to the number of months (x) in which he saved money. what is the slope of that equation?

Answers

(y) would be the amount of money he still needs to save and (x) would be the number of months he saved money. He plans to save $75 a month, and he has to save $600 in total. He still has to save 600 - 75x. So, the equation would be y = 600 - 75x.

PLSSS HELP ASAP and don’t send links I really need help this is hard ash

Answers

Answer:

[tex]b = \sqrt{ \frac{ {c}^{2} }{2 {\pi}^{2} } - {a}^{2} } [/tex]

PLZZ HELP WITH THIS FI ITS EASY FOR YOU LOL HELPPP WITH THIS

Answers

Answer:

1. Rhombus

2. Square

3. Rectangle

4. Quadrilateral

5. Parellelogram

6. Trapezoid

7. Rhombus

8. Rectangle

9. Rhombus

Answer:

Step-by-step explanation:

1. Rhombus

2. Square

3. Rectangle

4. Kite (?)

5. Parallelogram

6. Trapezoid

7. Rhombus (?)

8. Rectangle

9. Rhombus

The average daily volume of a computer stock in 2011 was million​ shares, according to a reliable source. A stock analyst believes that the stock volume in 2014 is different from the 2011 level. Based on a random sample of trading days in​ 2014, he finds the sample mean to be million​ shares, with a standard deviation of s million shares. Test the hypotheses by constructing a ​% confidence interval. Complete parts​ (a) through​ (c) below. ​(a) State the hypotheses for the test. ​: mu equals million shares ​: mu not equals million shares ​(b) Construct a ​% confidence interval about the sample mean of stocks traded in 2014. The lower bound is nothing million shares. The upper bound is nothing million shares. ​(Round to three decimal places as​ needed.) ​(c) Will the researcher reject the null​ hypothesis?

Answers

Complete question :

The average daily volume of a computer stock in 2011 was p = 35.1 million shares, according to a reliable source. A stock analyst believes that the stock volume in 2014 is different from the 2011 level. Based on a random sample of 40 trading days in 2014, he finds the sample mean to be 30.9 million shares, with a standard deviation of s = 11.8 million shares. Test the hypotheses by constructing a 95% confidence interval. Complete parts (a) through (c) below. State the hypotheses for the test. Construct a 95% confidence interval about the sample mean of stocks traded in 2014.

Answer:

H0 : μ = 35.1 ;

H1 : μ < 35.1 ;

(26.488 ; 35.312)

Step-by-step explanation:

The hypothesis :

H0 : μ = 35.1

H1 : μ < 35.1

The confidence interval :

Xbar ± Margin of error

Xbar = 30.9

Margin of Error = Zcritical * s/sqrt(n)

Zcritical at 95% = 1.96

Margin of Error = 1.96 * (11.8/sqrt(40))

Margin of Error = 4.412

Lower boundary :

30.9 - 4.412 = 26.488

Upper boundary :

30.9 + 4.412 = 35.312

Confidence interval = (26.488 ; 35.312)

Since the population mean value exists within the interval, the we fail to reject the Null.

Neighbor A can put up three 8 foot sections of wood fencing in two hours.
Neighbor B can put up 15 feet of chain link fencing each hour.
Neighbor C can put up 1 yard of vinyl fencing in half an hour.

Which neighbor's fencing project will take the least amount of time to complete?
Which neighbor's fencing project will take the most amount of time to complete?


Neighbor A can put up three 8 foot sections of wood fencing in two hours.
Neighbor B can put up 15 feet of chain link fencing each hour.
Neighbor C can put up 1 yard of vinyl fencing in half an hour.

Which neighbor's fencing project will take the least amount of time to complete?

Which neighbor's fencing project will take the most amount of time to complete?

Answers

Answer:

most is neighbor b

Step-by-step explanation:

1 yard is 3 feet

Answer:

Which neighbor's fencing project will take the least amount of time to complete?  Neighbor B

Which neighbor's fencing project will take the most amount of time to complete?  Neighbor C

please help this is due today

Answers

Answer:

Step-by-step explanation:

Heather, Jim, and Felipe served a total of 90 orders Monday at the school cafeteria. Felipe served 3 times as many orders as Heather. Jim served 5 more orders than Heather. How many orders did they each serve?

Answers

Answer:

Heather served 10 orders.

Felipe served 30 orders.

Jim served 50 orders.

What we know:

Let's refer to each person by their first initial (H, J, & F)

H + J + F = 90

F = 3 * H

J = 5 * H

Substitution:

Let's replace F and J by their equivalents in relation to H (basically making the entire left side only H)

H + (5 * H) + (3 * H) = 90

H + (5H) + (3H) = 90

9H = 90

H = 90/9

H = 10

Final Calculations

Now that we know how many orders Heather served, we can calculate how many Jim and Felipe served

F = 3 * H

F = 3 * 10

F = 30

J = 5 * H

J = 5 * 10

J = 50

One out of eight students wore white. What percent of the students wore white?

A. 18%

B. 12.5%

C. 9%

D. 0.125%

Answers

Answer:

B

Step-by-step explanation:

100/8 = 12.5

Willl give brainlyist if quick its timedd

Answers

Answer:

feel like its C

Step-by-step explanation:

What is the area of the rectangle?
A 1
3 square meter
B 1
6 square meter
C 1
6 1 square meters
D 1
3 1 square meters
1
2
2
3

Answers

Where is the rectangle

Find a single expression that represents the surface area of the rectangular prism

Answers

2(L * W) + 2(L * H) + 2(W * H) = surface area

The single expression that represents the surface area of the rectangular prism is :

S= 2lw + 2lh + 2wh

Let us assume the l is length, width is w and h is the height of the rectangular prism.

What is the rectangular prism?

In geometry, a rectangular prism can be stated as a 3-dimensional solid shape that has 6 faces with its base as rectangles.

So, the surface area S would be :

S = surface area

S= 2lw + 2lh + 2wh

where,

l= length

w= width

h = height

Therefore, the surface area of the rectangular prism is :

S= 2lw + 2lh + 2wh

check and know more about rectangular prism here :

https://brainly.com/question/14987814

#SPJ2

PLZ PLZ PLZ HELP ME WILL MARK BRAINLIEST Drag the tiles to the correct boxes to complete the pairs. Not all tiles will be used. Match each division expression with the correct quotient.

Answers

1. (16x² + 48x) ÷ 8x

[tex]\implies \sf{\dfrac{8x(2x + 6)}{8x}}[/tex]

[tex]\implies \sf{2x + 6}[/tex]

2. (56x² - 14x) ÷ 7x

[tex]\implies \sf{\dfrac{7x(8x - 2)}{7x}}[/tex]

[tex]\implies \sf{8x - 2}[/tex]

3. (20x² - 32x) ÷ 4x

[tex]\implies \sf{\dfrac{4x(5x - 8)}{4x}}[/tex]

[tex]\implies \sf{5x - 8}[/tex]

4. (18x² + 15x) ÷ 3x

[tex]\implies \sf{\dfrac{3x(6x + 5)}{3x}}[/tex]

[tex]\implies \sf{6x + 5}[/tex]

Find the value of the ratio.
Need help, please - and also need explanation.

Answers

Answer:

Step-by-step explanation:

I don’t know how to do these problems Pls help me

Answers

Answer:

The volume and area ones you just multiply the 2 numbers

if you cant multiply or is too la z. y to do so like me just g o o g l e it

Step-by-step explanation:

Top brainlist question
what is the size of angle QSR?​

Answers

Answer:

2x = 140  x = 70

Step-by-step explanation:

If you add the other 2 angles together, you get 150. Subtract 150 from 360 to get 210. Divide that by 3 and you get 70. Because QRS is 2 times the size of PQR, it is equal to 140.

Hope that this helps!

Explanation:

The sum of the interior angles of a quadrilateral is 360°.

x + 2x + 80 + 70 = 360

3x + 150 = 360

3x = 210

or

x = 70°

Therefore

angle Q = 70°

angle R = 2x = 140°

A cylinder is 5 centimeters tall and has a radius of 2.1 centimeters. Find the vilume to the nearest tenth.
A. 33.0 cm3^
B. 61.2 cm3^
C. 65.9 cm3^
D. 69.2 cm3^

BRAINLIEST TO THE CORRECT ANSWER

Answers

Answer:

The Answer is 69.27

Step-by-step explanation:

PLEASE HELP ASAP!! CORRECT ANSWER ONLY PLEASE!!!

How much would be earned on a $425 deposit earning 3% simple interest for 2 years?

A. $12.75

B. $25.50

C. $25.88

D. $38.25

Answers

Answer:

B

Step-by-step explanation:

I=prt

I=$425*2*3/100

I=25.5

find the value of x in the figure





Answers

Answer:

70degrees

Step-by-step explanation:

Using the theorem;

Angle at the vertex is the half of the difference of the angles at its intercepted arcs

Angle at the vertex = 24 degrees

difference of the angles at its intercepted arcs = 118 - x

According to the theorem;

24 = 1/2(118 - x)

Cross multiply

24 * 2 = 118 - x

48 = 118 - x

x = 118 - 48

x = 70degrees

Hence the value of x is 70degrees

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