The mean age of 5 people in a room is 39 years.
A person enters the room.
The mean age is now 40.
What is the age of the person who entered the room?

Answers

Answer 1

Answer: Answer:the person entering the room is 10 years oldStep-by-step explanation:x / 5 = 40x = 40 * 5x = 200so the total of all the ages of 5 people

Step-by-step explanation:


Related Questions

Could someone please help me with me two previous math questions?? Thx!!

Answers

I d k ok soourrrrru okokikokkkkk

Sure what questions :)

Charlotte picks up a few necessities at her local neighborhood market. Use the receipt to determine the total amount Charlotte will pay for her purchases if there is an 8% sales tax.

Answers

Answer:

29.70

Step-by-step explanation:

Add up purchases 4.35+8.20+12.45+2.5=27.50

calc sales tax 27.50 x .08=$2.20

27.50+2.20=29.70

The solution is, 29.70 is the total amount Charlotte will pay for her purchases if there is an 8% sales tax.

What is addition?

Addition is a way of combining things and counting them together as one large group. ... Addition in math is a process of combining two or more numbers.

here, we have,

given that.

from the given data, we get,

mouth wash = 4.35

detergent = 8.20

paper towels = 12.45

dish soap = 2.50

so, we get,

as total,

Add up purchases 4.35+8.20+12.45+2.5=27.50

now, we get,

calc sales tax 27.50 x .08=$2.20

so, we have,

27.50+2.20=29.70

Hence, The solution is, 29.70 is the total amount Charlotte will pay for her purchases if there is an 8% sales tax.

To earn more on addition click:

brainly.com/question/29560851

#SPJ2

Pls help And explain!!

Find the numbers between 1 and 50 that
are even, multiples of 6 and when divided
by 5 have a remainder of 2.
and

Answers

Answer:

12

Step-by-step explanation:

Divide 12 by 5 to get about 2 as the remainder. 12 is also a multiple of 6!

I hope this helps! Can you please mark brainliest!

What is the lateral surface area?

5 mm
5 mm
5 mm

Answers

The lateral surface of an object is all of the sides of the object, excluding its base and top. The lateral surface area is the area of the lateral surface. This is to be distinguished from the total surface area, which is the lateral surface area together with the areas of the base and top.

what is 6÷2 squaredwhat is 6 ÷ 2 squared ​

Answers

Answer:

(6/2)² = 3² = 9

6²/2² = 36/4 = 9

Answer:

9

Step-by-step explanation:

6/2 is 3

squaring three we get 3 to  the power of two or 3x3

3x3=9

3 squared is 9

The perimeter of a rectangle is 202020 centimeters. The length is 666 centimeters. What is the area of the rectangle?

Answers

Answer: 24 cm²

Step-by-step explanation:

To find the area, first find the width of the rectangle.

Perimeter = (2 * Length) + (2 * Width)

20 = (2 * 6) + (2w)

20 = 12 + 2w

2w = 20 - 12

w = 8/2

w = 4 centimeters

Area = Length * Width

= 6 * 4

= 24 cm²

12 + x/4 = 9
Simplify Plz need ASAP

Answers

Answer: X = -12

Step-by-step explanation:  1)  12 + x/4 = 9

                                              2)  12 + x/ 2^2 = 9

                                              3)   x/ 2^2  + 12 = 9  

Write as an algebraic expression: Five times
the difference of the cube of y and the
square of x
A. 5y3 + 5x2
B. (5y)3 - (5x)2
C. 5(y3 - x2)
D. (5y - 5x)^6

Answers

Given:

The statement is "Five times the difference of the cube of y and the square of x".

To find:

The algebraic expression for the given statement.

Solution:

We know that,

Cube = Power 3

Square = Power 2

Difference = Minus (-)

Times = Multiplication (×)

Now,

Cube of y = [tex]y^3[/tex]

Square of x = [tex]x^2[/tex]

Difference of the cube of y and the square of x = [tex]y^3-x^2[/tex]

Five times the difference of the cube of y and the square of x is:

Required expression = [tex]5(y^3-x^2)[/tex]

Therefore, the correct option is C. The required algebraic expression for the given statement is [tex]5(y^3-x^2)[/tex].

I NEED TO PASS SO I CA GO TO A CONCERT AND GET MY PHONE BACKKK I WILL GIVE 15 POINTS!! :)

Answers

Answer:

Step-by-step explanation:

Answer:

x=-5, y= 52

x=-1, y= 12

x=0, y= 2

x=1, y= -8

PLEASE ANSWER HONESTLY (PLEASE BE HELPFULL I HAVE BEEN STUCK ON THIS PROBLEM) WILL MARK BRANIEST IF CORRECT. (no links my computer is slow and no ctrl c ctrol v if possible (see picture below)

Answers

Answer:

down below

Step-by-step explanation:

so the volume of a cone is 1/3 of the volume of the cylinder.

[tex]V=\frac{1}{3} *108\pi \\V=36\pi[/tex]

Answer:

B) 36π

Step-by-step explanation:

cone volume = 1/3 cylinder volume so:

1/3(108π) = 36π

Lucy Liu went shopping at Hollister with her friends together they spent a mean price of $40 on eight sweaters the first step and sweaters cost $50 $55 $30 $35 $39 $40 and $42 how much in dollars does the eighth sweater cost

Answers

Answer:he eighth sweater costs $29

Step-by-step explanation:

Let the price of the eighth sweater be re[presented as X

We know that

Mean Price =Total sum of cost of sweater bought/ Number of sweater'

Plugging in our known values we have that  

40=$50+ $55+ $30+ $35+ $39+ $40 + $42+X  /8

8 X 40 =291 +X

320=291 +X

X =320-291

X=29

Therefore, the eighth sweater costs $29

Answer: 29

Step-by-step explanation:

I got a question and im  anwsering here bc i want the points either way how is this a high school question im in 6th this is a hw problem

A scatter plot with a line is shown below.

Graph shows numbers from 0 to 10 at increments of 1 on the x axis and number s from 0 to 15 at increments of 1 on the y axis. Scatter plot shows ordered pairs 0, 1 and 1, 1 and 2, 3 and 3, 5 and 4, 6 and 5, 7 and 6, 7 and 7, 8 and 8, 9 and 9, 11 and 10, 15. A line joins ordered pairs 0, 1 and 8, 15.

Which statement is most likely correct about the line?

It can be the line of best fit because it is closest to most data points.
It can be the line of best fit because it passes through all the scatter points.
It cannot be the line of best fit because it is not closest to most of the points.
It cannot be the line of best fit because it does not show positive association.

Answers

Answer:

A)

Step-by-step explanation:

Answer:

c

Step-by-step explanation:

If \orange{\angle ADC}∠ADCstart color #ffa500, angle, A, D, C, end color #ffa500 measures 23^\circ23 ∘ 23, degrees, what does \blue{\angle ABC}∠ABCstart color #6495ed, angle, A, B, C, end color #6495ed measure?

Answers

Answer:

23 degrees

Step-by-step explanation:

First add a diameter. The triangle \pink{ABD}ABDstart color #ff00af, A, B, D, end color #ff00af is isosceles as \pink{AB}ABstart color #ff00af, A, B, end color #ff00af and \pink{BD}BDstart color #ff00af, B, D, end color #ff00af are radii, so must be equal. Therefore, \pink{\angle{BAD}}∠BADstart color #ff00af, angle, B, A, D, end color #ff00af and \orange{\angle{ADB}}∠ADBstart color #ffa500, angle, A, D, B, end color #ffa500 are equal. Since, the angles in a triangle sum to 180^\circ180   180∠ABD+∠BAD+∠ADB∠ABD+2⋅∠ADB∠ABD===180∘180∘180∘−2⋅∠ADB

So, \blue{\angle{ABE}} = 2 \cdot \orange{\angle{ADB}}∠ABE=2⋅∠ADBstart color #6495ed, angle, A, B, E, end color #6495ed, equals, 2, dot, start color #ffa500, angle, A, D, B, end color #ffa500. We can also create an isosceles triangle, \pink{BCD}BCDstart color #ff00af, B, C, D, end color #ff00af.Using the same argument we can find that, \blue{\angle{CBE}} = 2 \cdot \orange{\angle{CDB}}∠CBE=2⋅∠CDBstart color #6495ed, angle, C, B, E, end color #6495ed, equals, 2, dot, start color #ffa500, angle, C, D, B, end color #ffa500.∠ABC=∠ABE−∠CBEstart color #6495ed, angle, A, B, C, end color #6495ed, equals, start color #6495ed, angle, A, B, E, end color #6495ed, minus, start color #6495ed, angle, C, B, E, end color #6495ed

\orange{\angle{ADC}} = \orange{\angle{ADE}} - \orange{\angle{CDE}}∠ADC=∠ADE−∠CDEstart color #ffa500, angle, A, D, C, end color #ffa500, equals, start color #ffa500, angle, A, D, E, end color #ffa500, minus, start color #ffa500, angle, C, D, E, end color #ffa500

Hint #1010 / 11

Since \blue{\angle{ABE}} = 2 \cdot \orange{\angle{ADE}}∠ABE=2⋅∠ADEstart color #6495ed, angle, A, B, E, end color #6495ed, equals, 2, dot, start color #ffa500, angle, A, D, E, end color #ffa500 and \blue{\angle{CBE}} = 2 \cdot \orange{\angle{CDE}}∠CBE=2⋅∠CDEstart color #6495ed, angle, C, B, E, end color #6495ed, equals, 2, dot, start color #ffa500, angle, C, D, E, end color #ffa500, \blue{\angle{ABC}} = 2 \cdot \orange{\angle{ADC}}∠ABC=2⋅∠ADCstart color #6495ed, angle, A, B, C, end color #6495ed, equals, 2, dot, start color #ffa500, angle, A, D, C, end color #ffa500

Hint #1111 / 11

So, \orange{\angle{ADC}} = \frac{1}{2} \cdot \blue{46^\circ} = 23^\circ∠ADC=  

2

1

​  

⋅46  

=23  

start color #ffa500, angle, A, D, C, end color #ffa500, equals, start fraction, 1, divided by, 2, end fraction, dot, start color #6495ed, 46, degrees, end color #6495ed, equals, 23, degrees

Which of the following changes is a chemical change?
A ice me

Answers

Answer:

Step-by-step explanation:

The question got caught off. Can't read any of the other examples. I can tell you though that ice melting is a physical change, not a chemical change.

11. Which is an equation of the circle whose center is
(5,1) and whose radius is 3?
A. (x + 5)2 + (y 1)2 = 9
B. (x + 5)2 + (y 1)2 = 3
C. (x 5)2 + (y + 1)2 = 9
D. (x 5)2 + (y + 1)2 = 3

Answers

I think that it is b sorry if I’m wrong

Can you slove this 6=2(y+2)

Answers

Answer:

y=1

Step-by-step explanation:

Step 1: Simplify both sides of the equation.

6=2(y+2)

6=(2)(y)+(2)(2)(Distribute)

6=2y+4

Step 2: Flip the equation.

2y+4=6

Step 3: Subtract 4 from both sides.

2y+4−4=6−4

2y=2

Step 4: Divide both sides by 2.

2y/2  2/2

what is the average rate of change of h(x) over the interval -13

Answers

The average rate of change of h(x) in the closed interval [ a, b ] is

Here [a, b ] = [ - 2, 2 ], thus
f(b) = f(2) = × 2³ - 2² = 1 - 4 = - 3
f(a) = × (- 2)³ - (- 2)² = - 1 - 4 = - 5
average rate of change = = =

in the year 2001, a person bought a new car for $22000. for each consecutive year after that, the value of the car depreciated by 5%. how much would the car be worth in the year 2005, to the nearest hundred dollars

Answers

Answer:

To the nearest hundred dollars, the car will be worth $17,900 by 2005

Step-by-step explanation:

Firstly, we need to write the depreciation equation

We have this as:

V = I(1 - r)^t

V is the present value which is what we want to calculate

I is the initial value, the amount the cad was bought which is $22,000

r is the rate of change which is 5% = 5/100 = 0.05

t is the time difference which is 2005-2001 = 4

Substituting all these into the depreciation equation, we have it that

V = 22,000(1 -0.05)^4

V = $17,919.1375

To the nearest hundred dollars, that would be;

$17,900

Simplify the expression.
-10a -
3a

Answers

Answer:

-13a

Step-by-step explanation:

they are like terms so it means they will add each other giving you -13a

:)

Answer:

-13a

Step-by-step explanation:

-10a-3a=13a

hope it helps.

In the figure to the right, if AC = 20 and BC = 17, what is the
radius?
А
8
The radius is approximately (Round to the nearest tenth as needed)

Answers

Answer:

Step-by-step explanation:

What is the value of the expression “three less than the quotient of ten and a number, increased by six” when n = 2?
A. 2
B. -7/4
C. 8
D. 19/2

Answers

Answer: 8

Step-by-step explanation:

Right on edge!

The amount of days in between payments is known as what?

Answers

Answer:

Days payable outstanding (DPO)

What is the volume of this prism?

Answers

Answer:

94.88

Step-by-step explanation:

V=Ah

A=5/2x4x2.75

V=27.5x3.45

= 94.875

Triangle PQR is a right triangle. Triangle P Q R. Angle P is 90 degrees, angle Q is x degrees, angle R is 2 x degrees. Which equation could be used to find the measure of Angle Q? 180 = 3 x 180 = 3 x + 90 180 = 2 x + 90 90 = x + 2 x

Answers

Answer:

180 = 3x + 90°

Step-by-step explanation:

180 = x + 2x + 90

Answer:

B

Step-by-step explanation:

Got it right on edgy

HELP PLS
have this math assignment due in an hour

Answers

30.- 12*9/2 = 54

29.- 20*16/2 = 160

16.- The number one

And last image 343yd

can someone please help me with this question? (no links!!)

Answers

Answer:

95.03

Step-by-step explanation:

half the radius- 11/2=5.5

A=πr^2

=πx5.5^2

how to solve (2^3)^4

Answers

Answer: 2^12

Step-by-step explanation:

Answer: 4096

Step-by-step explanation:

whats the answer to multiply (-3)(7)?

Answers

Answer:

-21

Explanation:

3 · 7 = 21

When any number being multiplied is a negative, the output becomes a negative

-3 · 7 = -21

Answer:

-21

Step-by-step explanation:

7 X 3= 21 and because the 3 is negative you get a negative product which is -21

I NEED HELP WITH THIS PLEASE HELLP ME!

Answers

Heyyyyyy, use https://www.bartleby.com/  it has helped me out a lot . Its actual tutors/teachers who answer your questions in about 30 minutes !!!!!!!!

Compare using >is greater than, 2/3 or 9/12

Answers

2/3 > 9/12 because 2/3 is closer to a whole

Answer:

Step-by-step explanation:

i dont know what ur asking but

9/12 > 2/3

Other Questions
A polygon has a perimeter of 36 inches. Each side is exactly 6 inches long. Which of the following figures does this describe?A. RectangleB. SquareC. Regular Octagon D. Regular hexagon Who claimed the United States ought to declare war on Mexico and make Mexico take new Mexico back? a. Bill Richardson c. George Curry b. Teddy Roosevelt d. General William T. Sherman in an exothermic reaction, chemical energy is converted to ____ energy. FILL IN THE BLANK. MECHANICAL OR THERMAL. A jar contains only pennies, nickels, dimes, and quarters. There are 27 pennies, 13 dimes, and 24 quarters. The rest of the coins are nickels. There are 87 coins in all. How many of the coins are not nickels? If n represents the number of nickels in the jar, what equation could you use to find n? How did the war over Falkland Islands affect Argentina?A. Argentina gained its independence from Spain.B. Argentina's military dictatorship fell from powerC.Argentina conquered the Falkland Islands.D.Argentina's democratic government was overthrown by the military. Sara bought shoes for $39.95 and x pairs of socks for $1.99 each. Which expression shows the total money spent? What is the solution for the equation?Negative five-halves = three-fourths + nn = Negative StartFraction 13 over 4 EndFractionn = negative start Fraction 7 over 4 EndFractionn = StartFraction 7 over 4 EndFractionn = StartFraction 13 over 4 EndFraction Someone help me ASAP!!!!!!! I DONt get what im suppose to do!!! I will mark brainliest! Sophie runs 4 1/2 miles on Saturday. Aubrey jogs 2/3 of that distance. So what is the distance Aubrey jogs in miles? PLEASE HELP ONLY IF U KNOW!This map shows the spread of the red fire ant after its introduction into the United States in Mobile, Alabama, in the 1930s:Which statement best describes an abiotic factor that contributed to the success of this invasive species?Presence of disease in the origin statesMutual competition in the invaded statesLimited moisture across the Southern statesIncrease in food availability in the invaded states The Summer of the Pestilence. Fiction: Angel Agnes For awhile Agnes seemed to be wandering, or perhaps she was dreaming; for her eyes were closed as though in slumber, and a smile like she used to smile, flitted over her pale face, as she stretched out her arms to embrace some one. Nonfiction: The Summer of the Pestilence I found that Edmund had come home sick a little while before, with all the symptoms of yellow feverviolent pains in the head and back, a yellow infusion in the eyes, a dark coating down the middle of the tongue, while the edges of the tongue appeared almost raw, and a very rapid pulse. What statement best describes how death is shown in these excerpts? A.The nonfictional excerpt shows great interest in scientific details. B.The fictional excerpt shows great character development. C.The fictional excerpt is more poetic than the nonfictional excerpt. D.The fictional excerpt has a stronger plot than the nonfictional excerpt. Imagine riding on a sled, or in a wagon, or perhaps a school bus that stops quickly or suddenly. What happens to your body if you are not expecting the sudden stop? Solve for all values of x by factoring.x^2-11x+10=0 Use the right triangular prism to answer the question belowright triangular prismWhat is the surface area of the right triangular prism? PLEASE HELP ME ON PRE ALGEBRA (b) Why is nitrogen used for storage of semenin artificial insemination? how has the role of marketing changed the way agribusiness operate? help will mark brainliest 25 points, from usa test prepThe story is Creative Cuisine by Marie DeversTo help the reader to feel a part of the story, the author uses...a. a happy endingb. only one main characterc. rollicking rhymes that amused. imagery to appeal to the reader's senses How does the reference to chemotherapy as a treatment for cancer relate to a main idea in the blog post?