Mathematics Middle School

Rosie had 10 boxes of drawing pins.
She counted the number of drawing pins in each box.

The table gives information about her results.


Work out the mean number of drawing pins in a box.

Rosie Had 10 Boxes Of Drawing Pins.She Counted The Number Of Drawing Pins In Each Box.The Table Gives

Answers

Answer 1

Answer:

(29(2) + 30(5) + 31(2) + 32(1))/10 =

(58 + 150 + 62 + 32)/10 =

302/10 = 30.2 drawing pins per box

Related Questions

I need help with this!

Answers

the correct statement will be the student earns 7.75 more per hour as a store clerk

Answer:

C

Step-by-step explanation:

522.20 divided by 55

yeyeyeyeyeyey

im cool at good answers

Hey Help me please.. (middle school)

Answers

Step by Step Explanation:

Need answer asap, when answr pls put number next to it, will give brainly if they're all right, tysm

Answers

Answer:

the interior angles measures=#7:7+7+7+7+7+7+7+7+7=63

the interior angles measures=#6:6+6+6+6+6+6+6=48

Determine whether the survey question may be biased.
Do you agree that an extremely costly and dangerous skate park should be built in our town?

Answer A or B.

Answers

Answer:

this is a biased question

reasons = The statement clearly is against the skate park and says how it's costly and dangerous clearly showing the speaker is against its creation

Answer:

The survey question may be biased as it is leading the respondents to a particular answer. A more balanced survey question would be to ask the respondents if they agree or disagree with the proposal to build an extremely costly and dangerous skate park in the town.

Step-by-step explanation:

Three friends each have some ribbon. Carol has 90 inches of ribbon, Tino has 4.5 feet of ribbon, and Baxter has 4.5 yards of ribbon. Express the total length of ribbon the three friends have in inches, feet, and yards.

Answers

Answer:
Total inches: 306
Total feet: 25.5
Total yards: 8.5

Explanation:
90 inches converted to inches= 90 inches
4.5 yards converted to inches= 162 inches
4.5 feet converted to inches= 54 inches
90 + 162 + 54= 306 inches

90 inches converted to feet= 7.5
4.5 yards converted to feet= 13.5
4.5 feet converted to feet= 4.5
7.5 + 13.5 + 4.5= 25.5 feet

90 inches converted to yards= 2.5
4.5 yards converted to yards= 4.5
4.5 feet converted to yards= 1.5
2.5 + 4.5 + 1.5= 8.5 yards

Answer:

Step-by-step explanation:

Let's convert every measurement into inches for now.

90 inches = 90 inches

4.5 feet = 54 inches

4.5 yard = 162 inches

Now, 90 + 54 + 162 = 306 inches

90 inches = 7.5 feet

4.5 feet = 4.5 feet

4.5 yard = 13.5 feet

Now, 7.5 + 4.5 + 13.5 = 25.5 feet

90 inches = 2.5 yards

4.5 feet = 1.5 yards

4.5 yards = 4.5 yards

Now, 2.5 + 1.5 + 4.5 = 8.5 yards

Hope this helps

Complementary and Supplementary angles.

Answers

Answer:

Supplementary 102° and 78°

Complemantary 78° and 12°

Step-by-step explanation:

complementary Angles add up to 90°

supplementary angles add up to 180°

12. Which statement is true? Mark all that apply.

A. 60 is 50% of 120.

B. 120 is 25% of 30.

C. 60 is 30% of 200.

D. 30 is 75% of 40.

E. 20 is 10% of 120.

Answers

The answer to your question are letters A,C,D

Answer:

The first one is correct aka 60 is 50% of 120

Step-by-step explanation:

120 x 30

100

= 36

Have a good day

HELP ASAP!!
In 2-5 (IMAGE) for each expression write an

equivalent expression. Show your steps

Answers

Answer:

see below

Step-by-step explanation:

just open up all brackets

2. x+16

3. 30x

4. 6x+12

5. 30+2x

2. (6+x)+10

we can use the distributive property.

Step 1: simplify by multiplying each term

10(6) + 10(x)

Step 2: find the product

60 + 10x

The answer is 60 + 10x.



3. (5x) • 6

we can just multiply this expression.

Step 1: find the product.

5 • 6 = 30

Step 2: add the variable.

30x

The answer will be 30x.


4. 6(x + 2)

we can use the distributive property for this expression.

Step 1: simplifying by multiplying each term.

6(x) + 6(2)

Step 2: find the product.

6x + 12

The answer will be 6x + 12.



5. 2(15 + x)

we can use the distributive property for this expression as well.

Step 1: simplify by multiplying each term.

2(15) + 2(x)

Step 2: find the product.

30 + 2x

The answer will be 30 + 2x.

Delancey plans to run at least three miles each week for her health. Delancey has a circular route in the neighborhood to run. Once around that route is 220 yd. If Delancey runs that route 40 times during the week, will she cover at least 3 mi explain

Answers

Answer: Yes

Step-by-step explanation:

Since she wants to run the route 40 times we have to multiply the 220 yd route with how many times she wants to run it

40 x 220 = 8800 which is 5 miles

She reaches her goal and beyond that

Yes, because if you multiply 220 by 40, you will get 8,800, which is 5 miles.

The length-to-width ratio of a television screen is 4 to 3. Mya bought a television with a length of 60 inches. What is the width of the television?

a. 45 inches

b. inches

c. 50 inches

d. 52 inches

Answers

Answer:

A

Step-by-step explanation:

Since the first screen, the length is 4 and width is 3, you multiply until you get to 60. 4×15=60, so what is 3×15? 45.

Answer: A

Step-by-step explanation:

Length ratio = 4x

Width ratio = 3x

Length = 60

∴ So, that means, 4x = 60

x = 15

Now, Width = 3*15 = 45 inches

Option (a) is correct

Please mark me the BRAINLIEST!!

Write an expression to represent "nine minus the quotient of two and a number x." (use / for division)

Answers

Answer: 9-2x

Step-by-step explanation: Please make me the brainliest

9- 2/x


“Nine minus” is “9 -“

“Quotient of 2 and a number” is “2/x”

Mrs. Boyle buys 2g pounds of beef Mrs. Anand buys 1.5 pounds less than Mrs. Boyle.
a) If the amount Mrs. Anand buys is d pounds of beef, express d in terms of g.

b) State the independent and dependent variables in the equation.

Answers

Answer:

a) d= 2g-1.5

b) g is independint d is dependent

Step-by-step explanation:

hope it helps

Answer: hope this helps ♡

Mrs Anand = 2g - 1.5g

Mrs Anand's beef = d

a) d = 2g - 1.5g        (d = 0.5g)

b) The independent variable is g & the dependent variable is d.

Which expression is equivalent to 9 ( w + 8)?
Group of answer choices
9w + 8
72w
17w
9w + 72
Thanks!

Answers

Answer:

9w + 72

Step-by-step explanation:

This question is for practicing the distributive property.

The 9 will distribute (like being passed out) to both the w and the 8.

9(w + 8)

= 9•w + 9•8

= 9w + 72

9w + 72

The beson above me is right

.Help
I need help with these questions, I got confused

Answers

Answer:

Step-by-step explanation

*1:  the hundred thousand place

*2: The hundredths place

*3: The thousands place

*4: The thousands place

*5: The hundred thousand place

*6: The digit is 9

*7: The ten's place.

*8:  The One's place

9* The ten's place

Helppp fastttttttttttt

Answers

Answer:

1

Step-by-step explanation:

The less classes, the less cost

Simplify 7x times (2x^4)^3
Middle school
Show work on how you got your _ Answer
Please help its for a test due tomorrow
A.42x^12
B.14x^13
C.42x^13
D. 56x^13

Answers

Answer:

D

Step-by-step explanation:

7x(2x^4)^3

7x(8x^12)

56x^13

It’s D I hope that helps you

1. The surface area of the prism is square units. All measurements in the image below are in units. (Input whole number only.)

A triangular prism is shown with 2 right triangular sides having legs 8 and 6 and hypotenuse 10. The length of the prism is 7.5


2. A solid is composed of squares and equilateral triangles. Its net is shown below:

A triangular prism and its net are shown. The net is three squares with side length 7 units. Attached above and below the middle square are equal sized triangles.

The area of each triangle is 21 square units. The surface area of the triangular prism is square units. (Input whole number only)


3. A polygon is shown:

A polygon MNOPQR is shown. The top vertex on the left is labeled M, and rest of the vertices are labeled clockwise starting from the top left vertex labeled, M. The side MN is parallel to side QR. The side MR is parallel to side PQ. The side MN is labeled as 3 units. The side QR is labeled as 9 units. The side MR is labeled as 3 units, and the side NO is labeled as 2 units.

The area of polygon MNOPQR = Area of a rectangle that is 9 square units + Area of a rectangle that is square units. (Input only whole numbers, such as 8.)


3. On a coordinate grid, the coordinates of vertices P and Q for Polygon PQRS are P(1, 3) and Q(−2, 3). What is the length of Side PQ of the polygon?
a
2 units
b
3 units
c
4 units
d
6 units


4. The length of a rectangle is shown below:

On a coordinate grid from negative 6 to positive 6 on the x-axis and on the y-axis, two points A and B are shown. The point A is on ordered pair 2, 1, and the point B is on ordered pair negative 4, 1. A straight line joins the points A and B.

If the area of the rectangle to be drawn is 18 square units, where should points C and D be located, if they lie vertically below the line that connects B and A, to make this rectangle? (1 point)

a
C(−4, −5), D(2, −5)
b
C(−4, −8), D(2, −8)
c
C(−4, −6), D(2, −6)
d
C(−4, −2), D(2, −2)


5. Figure ABCD has vertices A(−5, 2), B(4, 2), C(4, −5), and D(−5, −3). What is the area of Figure ABCD?

a
9 square units
b
45 square units
c
54 square units
d
122 square units

Answers

the answer is 2a pls give brainliest

the 96th annual hot dog eating contest begins at noon. you need to eat 208 hot dogs in 10 minutes to break last year's record. your best friend got caught in traffic and arrives halfway through the event

A: how many hot dogs have you consumed?

B: assuming you eat at the average rate needed, after the arrival of your best friend, how many total hot dogs will you consume in one minute? two minutes? three minutes?

C: identify and define the independent and dependent variables with their units of measure or this situation.

E:Which equation can be used to calculate the number of hot dogs consumed, given the time in minutes since 12:05 P.M.?

F:How long after 12:05 P.M. will it take you to consume 187 hot dogs?

G:When would you have consumed a total of 83 hot dogs?


When solving the equation, t will equal ___ which means I will have consumed 83 hot dogs at __ P.M.

Answers

Answer:I need help

Step-by-step explanation: plssssss

Which expression has a value that is equivalent to 5n + 13 when n=−5?

A).4n + 8
B).n² + 13
C).n + 8
D).2n + 2

Answers

A, it equals -12 like the one in the question

Answer:Option A

Step-by-step explanation:

Because 5(-5) = -25 + 13 = -12

And 4 x n = -20 + 8 = -12

Thus making both equal. Option a is correct

Please help me ASAP!! what is the answer to 5[tex]\frac{3}{4}[/tex] + 2[tex]\frac{3}{5}[/tex] ?

Answers

Answer:

8  7/20

Step-by-step explanation:

The 7/20 is a fraction and the 8 is a whole

The answer for that question is 8 7/20

8 5/12 - 6 3/4 (be sure to simplify if necessary)

Answers

Answer: 1 8/12 or simplified as 1 2/3

Step-by-step explanation: add 1/4 or 3/12 to the question to make it 8 5/12 - 7 and then use basic facts to get an answer of 1 5/12. Plus the addition of 3/12 we added before to get your final answer 1 8/12 simplified as  1 2/3.

Step-by-step explanation:

8 5/12 - 6 3/4

convert to improper fraction

8 x 12 + 5 = 101/12

6 × 4 + 3 = 27/4

101/12 - 27/4

write all the numerators above least common denominators

101 - 81/12

20/12

cancel out the common factor of 4

5/3

What value is a sulution of 8+2x≥12 but is not a solution of 8+2x>12?

Answers

Answer:

2

Step-by-step explanation:

We know that in 8 + 2x >= 12, x must be 2 or greater

If we plug in the value 2 in the SECOND equation: 8 + 2x > 12, it won't work because 8 + 2(2) = 12

So we know that the value is 2

Which expression could be used to calculate the perimeter of this rectangle?
Group of answer choices
2x + 9
4x + 9
4x + 18
2x + 18
Thanks!

Answers

i think the answer would be 4x + 18
4x+18 should be the answer

Help me please i dont understand.

Answers

Answer: 54

Step-by-step explanation:

A of sq. = 3*3 = 9 cm sq

A of rect = 5*9 = 45 cm sq

Total area = 45 + 9 = 54 cm sq

Hope it helped. Pls mark me the BRAINLIEST!

Solve the system of linear equations by substitution
5y=10
x-3y=4

Answers

Step-by-step explanation:

To solve the system of linear equations by substitution, we'll use the equation 5y = 10 to solve for y. We'll substitute this value of y into the second equation to get an equation in terms of x. Then, we'll solve for x and substitute the value of x back into one of the equations to find y.

Starting with the first equation:

5y = 10

y = 2

Next, we'll substitute this value of y into the second equation:

x - 3y = 4

x - 3(2) = 4

x - 6 = 4

x = 10

Now that we have found x, we can substitute it back into one of the equations to find y:

5y = 10

y = 2

So the solution to the system of linear equations is (x, y) = (10, 2).

Answer: (x, y) = (10 , 2)

Step-by-step explanation: 1. Solve the equation for y: {y=2

                                                                                            {x-3y=4

2. Substitute the given value of y into the equation x-3y=4: x-3x2=4

3. Solve the equation for x: x=10

4. The possible solution of the system is the ordered pair (x, y): (x, y)=(10, 2)

5. Check if the given ordered pair is the solution of the system of equations: {5x2=10

                  {10-3x2=4

6. Simplify the equalities: {10=10

                                             {4=4

7. Since all of the equalities are true, the ordered pair is the solution of the system. --> (x, y)=(10, 2)

So then, in conclusion, the solution must be, (x, y)=(10, 2).                                                                                              

Suppose 52.5 liters of water came out of a faucet today. If 4.2 liters of water come out each minute, for how many minutes was the faucet on?

Answers

Answer: the faucet was on for 12.5 minutes

Step-by-step explanation:

52.5/4.2 = 12.5

what is the answer 6 – 2(x + 4) ≤ 8?

Answers

Answer:

x ≥ -5

Step-by-step explanation:

1. Distribute the -2 through the parentheses

 -2(x + 4) = -2x - 8

2. Combine like terms ( 6 plus -8)

6 - 2x - 8 ≤ 8  

-2 - 2x ≤ 8

3. Move the constant to the right-hand side and change its sign

-2x ≤ 8 + 2

4. Combine like terms

-2x ≤ 8 + 2

-2x ≤ 10

5. Divide on both sides

-2x /-2= cancels out ≤ 10/-2 = -5

x ≥ -5

Tip: if you have a negative x value you must flip the sign

If you need any math help check out Brian McLogan

Hope I helped!

Answer x > -5



explanation:

help! 3m + 8 1/4 = 9

Answers

Answer:

did you forget to add multiply sign between 8 and 1/4?

Does 18 yd = 6ft? please
help

Answers

Answer: no its 54 feet

No it equals 54ft bc 18*3 equals 54 anytime u are not sure about how much feet it equals multiply by 3 like for example 42Yd=126ft bc 42 * 3 is 126
:)

Which of the following graphs represent a function?

Answers

Answer:

The third graph

Step-by-step explanation:

Number three shows a function
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