Mathematics Middle School

The average age of 3 girls is 17years 4 months
The average age of 2 of them is 17 years 3 months
How old is the third girl.

please explain your answer.
Thank you​
This the correct question

Answers

Answer 1
The third girl is 17 years 6 months old.
The Average Age Of 3 Girls Is 17years 4 MonthsThe Average Age Of 2 Of Them Is 17 Years 3 MonthsHow Old
Answer 2
17 years and 6 months

Related Questions

A. does 24 ft = 2in ?

Answers

No, your answer should be,

[tex]\Huge\boxed{288}[/tex]

To convert feet into inches, you multiply the length value by 12. Your mistake is you got it mixed-up. 24ft doesn't equal 2in, but 24in equals 2ft, because instead of multiplying 12, you divide by 12.

24ft → 288in

24 × 12 = 288

24in → 2ft

24 ÷ 12 = 2

Hence, 24ft doesn't equal 2in.

24 doesn’t equal 2.

Please I need help like now if you show your work I'll mark brainiest.

1 = [tex]x/25[/tex]

Answers

Answer:

x=25

Step-by-step explanation:

x = 25x1

x = 25

Answer:

x=25

Step-by-step explanation:

Multiply both sides by 25  

1 x 25=x

Simplify 1x 25125 to 25

switch sides:

x=25

I really need help!! Which box doesn't belong??

Answers

Answer:

I think it's C

Step-by-step explanation:

A is go up one time

B is go down one time

C is... not sure what's going on there

And D is multiply by 8

I'm confused.

Helppppppppppp. Pleaseeeeeeeeeeeeeeeeeeeeeeeeeeee

Answers

Answer:

7

Step-by-step explanation:

form a proportion

12/2=42/x

cross multiply

12x=84

x=7

10. Which equation below is equivalent to 3x + 2y = -2?
a. y = -2/3x – 5
b. y = 3/2x + 7
c. y = -3/2x - 1 d. y = 2/3x + 4
e. NOthing

Answers

Answer c, you have to put the equation in slope intercept form which is y=Mx+b so you would subtract the 3x and move it to the other side of the equal sign before the -2 so it would be 2y=-3x-2 then you would divide the 2 on both sides to separate the 2 from the y. -3x/2 is -3/2x 2/-2 is -1 so you answer would be C y= -3/2x - 1 Hope this makes since! Good luck!
Answer :C
Explanation here
Hope this help

help plzzzzzzzzzzzzzzzzzzzz

Answers

Answer:

Draw coorinate grids. Find the point where it stops at make it on the grid.

Step-by-step explanation:

I’m fairly certain it is graph 2

look at the photo due soon

Answers

Answer:

a= 6x+12

a= 6(x+2)

Step-by-step explanation:

Kinda confused but I hope this helps

Answer:

6x+12 & 2(3x+6)

Step-by-step explanation:

2(3x+6)

distribute

6x+12

Help fast don’t understand

Answers

Answer:

Part A: (-3, -2) and (4, 3)

Part B: 24 units

mr cho travel 30 1/5 miles in 2/3 of an hour. what is the average speed, in miles per hour, of the car?

Answers

151/5 / 2/3 , 151x3 , 456/10
ANSWER: 45.6MPH

Answer:

45.6

Step-by-step explanation:

And also weltonlogan0 They got the same awnser “45.6”

HeLp! ;^;

(05.05)The width of a rectangle is shown below:

A coordinate plane with a point A at negative 3, 3 and C at negative 3, negative 2.

If the area of the rectangle to be drawn is 20 square units, where should points B and D be located if they lie to the right of points A and C?

B(1, 3) and D(1, −2)
B(3, 3) and D(3, −2)
B(2, 3) and D(2, −2)
B(1, 2) and D(1, −3)

Answers

The answer is B

Hope this Helps!

will mark branliest
equation 5(7j + 6 + 3j)

use mathematical properties to create two expressions that are equivalent to the expression you created in Question 1. Make sure you show all steps in your work.

Answers

Answer:

50j+30 and 5(10j+6)

Step-by-step explanation:

5(7j+6+3j)

First, do the parenthesis

5(10j+6)

Distribute

50j+30

Hey, I agree with the first person

The data set shows the ages of everyone in a dance class. 4, 17, 17, 17, 17, 17, 18, 18, 18. Select the statement that correctly describes the data. .
A. The typical value is 17. Most values are close to 17, except 4, which is an extreme value.
B. The typical value is 18 because it is the maximum.
C. The typical value is 4 because it is the minimum.
D. The typical value is 9 because that is the total number of people.​

Answers

Answer:

A, I MIGHT BE WRONG DONT BLAME ME I TRY

Step-by-step explanation:

Answer: I think its D

Step-by-step explanation:

Yu-Xi draws triangle with two angles measuring 79° and 23°. What is the measures, in degrees, of the third angle? ​

Answers

Answer:

79+23=102

180-102=78

the third angle is 78 degrees

Answer:

The answer is A. 78 degrees!

Step-by-step explanation:

Hope this helped! Have a fantastic rest of ur day/night! :)))

the price of a shirt was $16. there is a price increase of 4%. which of the following expression gives the new price of the shirt?

Answers

Answer:

$16.64

Step-by-step explanation:

$16 + 4% = $16.64

Alan is spreading fertilizer on a field to get it ready for planting. The directions say to use of a quart of fertilizer for each acre of land. Alan has two fields, one that is acres and one that is acres.

How much total fertilizer will Alan need for his two fields?

A.6-3/4
quarts
B. 28-1/8
quarts
C. 48- 3/5
quarts
D. 47- 4/5
quarts

Answers

Go to tinyurl com wtjfavyw and Get help good luck

Help please pleaseee

Answers

Answer:

27$

Step-by-step explanation:

Answer:

$27.00

Step-by-step explanation:

3 x 2 x 1 = 6 m³

6 m³ x $4.50 = $27.00

what is the bottom and what is the frequency???

Answers

What do you mean? I need more information!!!
I don’t understand and what is frequency!!?

There is approximately 3.3 x 10*8 people in the United States of America in 2018. The average person consumed about 3.4 x 10*2 milligrams of sodium each day. Approximately how much sodium was consumed in the USA in one day in 2018?

Answers

(3.3 x 10^8) x (3.4 x 10^2) = 1.22 x 10^11

Tyler used
1 1/4 gallons of paint to paint
5/7 of a fence. How many gallons will it take to paint the whole fence? Write a multiplication equation or a division equation to represent this question, then find the answer.

I also need an explanation for the answer and I need it today :)

Answers

Answer:

1 3/4 gallons of paint

Step-by-step explanation:

sorry if wrong

You need to find a common denominator I chose 28 so I multiplied 4 by 7 and that gives you 28 and you have to do the same thing to the top that you did to the bottom so I multiplied 11 by 7 as well which gave me a fraction of 77/28 then I multiplied 7 by 4 to get 28 and multiplied the top by 4 to get a fraction of 20/28 then I added 8 to 20/28 and to 77/28 to get 28/28 (the whole fence) and 85/28 (the paint you need to cover the whole fence) then I simplified my answer by seeing how many times 28 fit into 85 and it fits 3 times with a remainder of 1 so the simplified answer I got was 3 and 1/28 gallons of paint to cover the whole fence.

Number 1 is the question. the second picture is the one i want you to draw the answer on please ty

Answers

So 4:30 and then the second one is 15:75

Chris borrowed $1,500 at a simple interest rate of 5% to buy a computer. He plans to have the loan paid back in 2.5 years. How much simple interest will Chris pay
work needs to be shown

Answers

Your Answer:

$75

Step-by-step explanation:

1. 5% to a decimal: 0.05

2. 0.05 × 1,500 = 75

Hope this helped

it would be $75 it’d be sick if you can give me branliest

hey luvs help would be very much appreciated pls need it by the end of the day<3

Answers

Answer:

it eather abc or d

Step-by-step explanation:there is a 1 in 4 chan of getting it correct so 25 percent chance good luck i dont know it lol

Answer:

x - 2y > -4

       ............

-6x ≤ 12
solve and show work

Answers

Answer:

x = -2

Step-by-step explanation:

- x - = positive

-6 x -2 = 12

Answer:

Step-by-step explanation:

-6x ≤ 12

Divide both sides by (-6). When dividing by negative number ≤ will change to ≥

-6x/-6 ≥ 12/-6

x ≥ -2

please help me with my math HM pleeease

Answers

Reflection then clockwise rotation. And yes they are congruent, it’s still the same shape, all they did was move it around. They didn’t change the size, or move the points. Congruent is defined as “identical in form”, but it’s ok if they’re rotated or flipped.

Solve for x.
3x + 4x = 14
X =

please explain how you got the answer too

Answers

X=2
You add 3x and 4x which is 7x then divide 14 by 7 which is 2

can anyone help me? ill give brainiest if its correct!

Which value is MEAN of the data set?

A) 480
B) 485
C) 500
D) The MEAN cannot be determined from the available information.

Answers

C) 500

Explanation:
The middle of the box and whisker plot is the line in the middle of the box. That line is over the number 500 on the number line meaning the C would be the correct answer.
I got B because to find the mean you have to add all numbers then divide by how many number there are

hi! can someone please help? i added a pic so that u can see what i need help on. hopefully it helps

Answers

Answer:

I'm pretty sure that the answers would go, Wrong, increased, 9 1/2 points, 6 5/8 points, dropped, 12 3/4 points.

Step-by-step explanation:

The reason why it would be wrong is because the amount of points lost was less than the total amount of points gained.

In week one and two the company gained 9 1/2 points and 6 5/8 points. When you add them together, you get 16 1/8 points.

In week three the company lost 12 3/4 points. If you multiply the fraction to change the denominator to 8, the mixed fraction becomes 12 6/8.

16 1/8 - 12 6/8 = 3 3/8

As you can see, there are still points left over.

In the fourth week, they ended up losing all of their points and then some more, but from my understanding it's just asking about the third week.

Hope that this helps!

help pls i don't do good on these

Answers

Answer:

its 90

Step-by-step explanation:

don't feel like explaining

Two bags each contain black and white marbles, as shown below. If Karl draws one marble from each bag, what is the probability that they will both be black?
A.3/7
B.1/6
C.11/12
D.3

Answers

Answer:

The answer is A

Step-by-step explanation:

Hope this helps!

:)

Answer:

I think A. But I'm not 100% sure.

Step-by-step explanation:

which vaule is farthest away form 0 on the number line -16, 15.5, |15|, |16.5|

Answers

|16.5|
EXPLANATION.
the farthest away number on the number line is the greatest number. (don’t worry about - its the same distance on left and right of the number line)
So if we look at the numbers it is clear that 16.5 is the greatest number. meaning it is the farthest from 0.
The answer is 16.5 because if you look at the number line it is farthest away
Other Questions
I need help with an essay about 'the house next to the river' 200-250 words At West Painting, they get about three calls a day asking for an estimate of the cost for having the interior of a house painted. To write up an estimate for the cost of a job, they need to know how much paint a job will take. If they average painting 3/4 of a room with 2/5 of a gallon of paint, then they can paint, on average, rooms per gallon. Write the name of each decimal place indicated answer I think is most correct gets marked brainly ist How can you become self-reliable What's the side effects of the flu vaccine nasal spray Marking as brainliest!!! PLEASE HELP!!!! WITH EXPLANATION PLEASE :)) WILL MARK BRAINLIEST!!!Which historical detail from the speech is also included in the story?A. If a woman wrote a book, her husband owned the copyright.B. A widow usually inherited only a small part of her husband's estate.C. Married women had no legal rights and could not even sue someone.D. Married women did not have any right to raise their own children. So far this semester, Warren is averaging a score of 72 points on math tests, which is 20% lower than his average last semester. What was the average of his scores last semester? Which advertising technique does not create positive feelings in the audience?A.headlinesB.plagiarismC.idiomsD.slogans Why was the revolution of March 1917successful? Write an emergency that could happen that would have a financial cost what is a molecule?? Function NotationIf f(x) = -3x2 + 2x - 8, find each of the following:f(-1)f(0)f(3)f(1/3) In a Roman veristic portrait, one would most expect to see: Assume v is a vector in R^5. You wish to compute a vector w such that the th entry of w, denoted wi, is the sum of vi-1,vi, vi+1. For example wi is the sum of ,vo,v1 and v2. For elements at the endpoints of w, you will only account for two elements in your sum. For example wo, (assuming zero-based indexing) is the sum of vo and v1. Construct a matrix A such that Av=w. 4. Regulation of clearcutting in public forests can:(a) Provide income for the State through taxes andpermits.(b) Provide oversight to ensure sustainable practices.(c) Provide income and jobs for workers.(d) All of the above. uh please read this and answer them for me it would mean a lot to me Carrie found the difference 11/12 -- 2/3. she said * i found a common denominator 12,then subtracted the numerators to get 9/12* is carrie correct? Explain why she is or not correct. Which statement best describes the function?O A. The function is increasing when x < 0.B. The function is decreasing when x > 0.C. The function is never increasing.D. The function is always increasing.