Mathematics Middle School

A balance diagram going from 10 to 20. The mean is 13.
There is 1 circle above 10 and 11.
Which value should be added to this data set to produce a mean of 13?

Answers

Answer 1

Answer:

maybe 18-

Step-by-step explanation:

not really sure

Answer 2
I think it would be 18

Related Questions

Tatiana is buying b number of books and m number of magazines at the book fair. The books cost $4 each and the magazines cost $2 each. Tatiana's total purchase can be shown with this expression: 4b + 2m. Which expression is equivalent to 4b + 2m?

Answers

Answer:

2(2b + m)

Step-by-step explanation:

We can simplify the expression given in the question using factoring:

4b + 2m

(2 x 2)b + (2 x 1)m

2(2b + m)

The equivalent expression is 2(2b + m).

What is meant by an expression?

It is a sentence with a minimum of two numbers or variables and at least one math operation.

Given that b is the number of books and m is the number of magazines.

The cost of a book = $4

The cost of a magazine = $2

The given expression for Tatianan's total purchase is 4b + 2m.

The given expression can be simplified as

4b+2m = 2(2b+m)

Hence, 2(2b+m) is the equivalent expression of 4b+2m.

To learn more about expression, use the link given below:

https://brainly.com/question/14083225

#SPJ6

What is f(-2) if f(x) =1/2x?

Answers

-1 i believe, can i get brainliest?
your answer is gonna be -1

I don’t know what to do on this question. I need this done tho AS SOON AS POSSIBLE PLEASE HELP ME

Answers

3(c+6)=24


He pain $2 of each comic book

Answer:

bottom

Step-by-step explanation:

A salesperson’s commission rate is 4%. What is the commission from the sale of $39,000 worth of furnaces? Suppose sales would double. What would be true about the commission?

Answers

Answer:

The earnings will double

Step-by-step explanation:

Step one:

given data

we are told that the sales person's earnings is 4% of the sales made.

given that the sales made is $37,000 worth of furnaces.

Step two:

we want to find 4% of $37,000

=4/100*37000

=0.04*37000

=1480

hence for $37,000 the earning will be $1480.

Now suppose sales is doubled that is 37000*2= 74000

we want to find 4% of $74,000

=4/100*74000

=0.04*74000

=2960.

the earnings is $2960.

So if sales doubles the earnings will double

if it's 3:50 p.m., what time will it be in 2 1/2 hours?
if it's 9:25 a.m., how long will it be until the time is 1:15 pm?

Answers

Answer:

1. 5:20

2. 4 hours and 10 minutes

Step-by-step explanation:

Answer:

it will be 5:20 for the first one

Step-by-step explanation:

Martha wants to give each guest the same thing in each gift bag. She has 12 chocolate bars, 24 packs of gum and 48 bags of chips.

Answers

Answer:

You could put together 12 bags and each would have 1 piece of chocolate, 2 packs of gum and 4 bags of chips

Step-by-step explanation:

Martha is able to make 12 equal bags. Each bag can contain 1 chocolate bar, 2 packs of gum and 4 bags of chips.

Which statements about experimental probability are true?

O Experimental probability is written as a ratio.

O Experimental probability includes the number of possible outcomes.

O Experimental probability is found by conducting trials of an experiment.

O Experimental probability includes the number of times an event occurs in the numerator, and the total number of trials in the denominator.

O Experimental probability includes the number of times an event occurs in the denominator, and the total number of trials in the numerator.

Answers

Answer:

A

C

D

Step-by-step explanation:

A. C. And D. Sksksdkdbdjskshsjskd

Plz Help Asap!!! MARK BRAINLIEST!!!

Answers

I think line k but I could be wrong

What is the slope of the line that passes through the points listed in the table? Table: (4,3) (7,9) A. -2 B. 2 C. 3 D. 6

Answers

Answer:

2

Step-by-step explanation:

(4,3)(7,9)

9-3/7-4=6÷3=2/1 =2

(4,3) and (7,9)
1. 9-3/7-4
2. 6/3
3. 2
So, the answer to this question is B. 2
Also, I just want to wish you a very happy new year and have a great rest of your day!
Also, can you please mark my answer as the brainliest answer?

The newest phone by Samsung finally came out and costs $499. You were one of the first people in line to buy it so you got a 15% discount and there was a 8.5% tax. What was the total cost of the phone?

Answers

Answer:

$460.20

Step-by-step explanation:

499*15% = 74.85 (total discount price)

499-74.85 = 424.15 (deduct discount from original price)

424.15*8.5% = 36.05275 (total tax from price)

424.15+36.05275 = 460.20275 (add tax to discounted price)

the answer is $460.20

2[tex]^{2}[/tex] + 5 + 50 ÷ 2(5)

Answers

Hey there!

2^2 + 5 + 50 ÷ 2(5)

2^2 = 2 • 2 = 4

4 + 5 + 50 ÷ 2(5)

4 + 5 = 9

9 + 50 ÷ 2(5)

50 ÷ 2 = 25

9 + 25(5)

25(5) = 125

9 + 125

= 134

Answer: 134 ☑️

Good luck on your assignment and enjoy your day!

~LoveYourselfFirst:)

The answer is 134 hope this helps

I need help with this problem if you know how to do it please helppppp meeeee

Answers

Answer:

I believe its -5 1/4

Step-by-step explanation:

Cymath is a good help.

It’s 5 1/4 hopefully this helps you.:;)))

please help ill give brainliest

Answers

35 miles per day! The increments change by days not hours. Therefore it’s 35 miles per day.

Answer: 35 miles per hour

Step-by-step explanation:half of 50 is 35

Which of the following best describes LCM?

a
Least Common Multiple, Skip Counting, Multiplying, Numbers that are getting larger
b
Least Common Multiple, Skip Counting, Multiplying, Numbers that are getting smaller
c
Least Common Multiple, dividing numbers, Numbers that are getting smaller

Answers

Answer:

C for sure

Step-by-step explanation:

help meee pleasee !!!

Answers

Answer:

It would be relation B and f (x)

Step-by-step explanation:

for it to be a function X (-8) can only have one outcome, however that isn't the case with A.

and I believe if I'm remembering correctly, one-to-one correspondence is each element of one set is only paired with one element of the other set which isn't true for B, so it should be f (x), though you may want to look it up for yourself to make sure.

It’s what the other person said haha

Students in a science class investigated how the speed of sound changes with the air temperature outside. The data are shown in the scatterplot.

Based on the scatterplot, what is the best prediction of the speed of sound when the air temperature is 45°C?

350 m/s

355 m/s

360 m/s

365 m/s

Answers

Answer:360 m/s

Step-by-step explanation:

The best prediction of the speed of sound when the air temperature is 45°C is 360 m/s option third is correct also the graph shows a positive correlation.

What is correlation?

It is defined as the relation between two variables which is a quantitative type and gives an idea about the direction of these two variables.

As we can see in the graph:

When the air temperature is 10°C the speed of sound is around 337m/s

When the air temperature is 20°C the speed of sound is around 344m/s

When the air temperature is 30°C the speed of sound is around 348m/s

When the air temperature is 40°C the speed of sound is around 355m/s

From the above observation, the air temperature increases the speed of the sound increases.

So when the air temperature reaches 45°C the speed of the sound will be 360 m/s.

Thus, the best prediction of the speed of sound when the air temperature is 45°C is 360 m/s.

Learn more about the correlation here:

brainly.com/question/11705632

#SPJ2

Find a solution to the equation without writing anything down.
x+1=5

Answers

X equals 4, because 4+1= 5

Answer:

4

Step-by-step explanation:

5-1=4

PLS help me with my math.

Answers

Answer: A

Step-by-step explanation: You have so much tabs open

A rectangular prism is shown below. What is the lateral surface area?

Answers

Answer:

What is the other base length?

V = a x h
Rearrange to give v / h = a
But you will need that missing side at the bottom!

Help!!!!!5th grade math

Answers

Answer:

1. $16

2.$22

3. 4yds

Step-by-step explanation:

Answer:

What is the cost of 8 yards of ribbon? - $16

EXPLANATION: At 8 (Length of Ribbon (yd) ) it is marked $16

What is the cost of 11 yards of ribbon? - $22 (Keep it as is)

EXPLANATION: At 11 (Length of Ribbon (yd) ) it is marked $22

How many yards of ribbon can she buy with $8? - 4 yards

EXPLANATION: At 8 (Total Cost of Ribbon (5) ) it is marked 4 yards on the (Length of Ribbon (yd) )

Hope this helps! :)

P.S. Pleaseeee choose me for brainliest, I'm only in 5th grade and I'm doing 6th grade/7th grade math. Anyways have a wonderful day ;)

Which is an equivalent expression of:
−2(5r+ 3) + 9r?
A) −19r – 3
B) −10r – 6
C) −10r + 3
D) −r– 6

Answers

The answer is D) -r-6

if you distribute the -2 to the 5r and 3 you get -10r and -6.

-10r + 9r = -r (then just add on the negative 6)

-r-6
Answer: D

Explanation:

Distribute -2 through the parentheses

Then combine like terms

What is wrong with this equation 7/9-8/9=1/9

Answers

Answer:

the answer would be -1/9

because you're subtracting 8/9 from 7/9, not the other way around.

Step-by-step explanation:

Answer:

see below

Step-by-step explanation:

7/9-8/9=1/9

We have a common denominator

( 7-8)        1

--------- =  ----

9                9

7 -8 is equal to -1  not 1

The answer should be -1/9  not 1/9

Please help. If you get it right I will give you brainliest.

Answers

ik the first one is true
im pretty sure its a “strong positive linear Association”

On a recent survey, 60% of those surveyed indicated that they preferred taking a trip to the beach over a trip to the mountains. If 810 people preferred a trip to the mountains, how many people were surveyed?
Question 1 options:

486


870


1,350


2,025

Answers

the third one , 870

Answer:

Its Option three, 1,350.

Step-by-step explanation:

60% of 1350 is 810.

In science class, Mrs. Moore’s students were directed to weigh a 300-gram mass on the balance scale. Tina weighed the object and reported 328 grams. Calculate the percent error. Show your work.

Answers

Answer:

Think it's 109.33

Step-by-step explanation:

look it up brodie

109.33


Explanation
I think it’s this

ASAP PLS ANSWER I DEAD

Answers

Answer:

Variables: you are correct

Coefficients: -2

Constant: 3/7

Step-by-step explanation:

Variables are letters used in math so you were correct.

Coefficients are numbers with a variable. So to find the coefficient you would look for a number "connected" to a variable. This would be -2 because it is being subtracted from the first term.

The constant is 3/7 because you could put it on a number line.

What is the equation of the line graphed?

Answers

y=3x-2 is the equation :^}

Answer:

y= 3x-2

Step-by-step explanation:

Slope intercept form is y=mx+b. M = slope. B= Y-Intercept

Slope can be found with rise/run, or y/x. The slope in this scenario is 3/1, or 3.

Y-Intercept can be found at (0,-2).

Oliver is starting a running plan to train for a race. In the first week of his running
plan, Oliver will run 14 miles. The plan calls for Oliver to increase his weekly milage
by 3.5 miles every week. If Oliver sticks to the plan, how many miles would he be
expected to run during his oth week of the training plan?

Answers

Answer:

49

Step-by-step explanation:

He starts at 14 miles and will add 3.5 miles to it every week. You are checking how many miles he will run by the 10th week so you would do 3.5 x 10 which equals 35 then add that to 14 to get your total of 49 miles. Have a good day lol

35hfxhxbxhxhhxhdhdhxhfhf

the question is down below!!

Answers

Answer: 1:2

Step-by-step explanation: you have to subtract 80 from 120 to get 40. Then you would have the ratio 40:80. Then when you simplify it would be 1:2.

The visual work:

120-80=40

40:80=1:2

i know u didnt need the explanation and all that but just wanted to show you how i got it- lol

Answer:

Answer down below!

Step-by-step explanation:

If there were 80 blue marbles, but the amount of red marbles isn't stated. First, you need to figure out how many there are. 80 + Number = 120

Number = 40

The ratio is 80:40

Cutting that in half would be 40:20

We're getting closer

20:10

This is starting to get pretty obvious what our answer could be!

If we kept cutting we would get 2:1

Your answer is 2:1!!

Sorry if I am wrong!

PLEASE HELP ME ASAP!!
Fifty percent of the area of this rectangle is shaded. What is the area of the shaded region? Explain your thinking.

Answers

Answer:

hey we cant see the rectangle but if you show me i can help

Step-by-step explanation:

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