Mathematics Middle School

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Answers

Answer 1

PLEASE GIVE BRAINLIEST!

thank you and have a good day :)

Answer:

First question's answer: 28y

Second question's answer: c + 12

Step-by-step explanation:

first question explanation:

7(4y) =28y

7 times 4 is 28, simply attach the y on.

Second question explanation

(0 + c) + 12 = c + 12

0 + c simplifies to just c

c + 12 cannot be simplified even more

hope this helps :)

Answer 2

Answer:

1. 28y

2. c + 12

Related Questions

help me please if you know how to do this

Answers

Answer:hi

Step-by-step explanation:

sorry i needed the points

Answer:

135.6 ft²

Step-by-step explanation:

Surface area of triangular pyramid:

In the triangular pyramid, base is an equilateral triangle, and the lateral faces are congruent triangles. So, to find the surface area add the area of base triangle with the area of 3 lateral triangles.

a) Base area of pyramid:

b= 8 cm

h = 6.9 cm

[tex]\boxed{\bf base \ area \ of \ pyramid = \dfrac{1}{2}*b*h}[/tex]

[tex]= \dfrac{1}{2}*8*6.9\\\\=4*6.9\\\\= 27.6 \ ft^2[/tex]

b) Area of one lateral surface area of pyramid:

b = 8 cm

slant height = l = 9 cm

[tex]\boxed{\text{\bf area of one lateral surface area of the pyramid = }\dfrac{1}{2}b*l}[/tex]

[tex]\sf = \dfrac{1}{2}*8*9\\\\= 4 * 9\\\\= 36 \ ft^2[/tex]

c) Lateral surface area of the pyramid = 3 * area of one lateral surface area of pyramid

= 3 * 36

= 108 ft²

d)TSA of pyramid:

[tex]\boxed{\text{\bf Total surface area of pyramid = base area + lateral surface area}}[/tex]

= 27.6 + 108

= 135.6 ft²

Please help I am le dum

Answers

Answer:

p = 2x + 14

Step-by-step explanation:

Perimeter

p = 2l + 2w

p = 2(x + 2) + 2(5)

p = 2x + 4 + 10

p = 2x + 14

Perímetro = 2(5 + (x + 2))
Perímetro = 2(x + 7)

What is the ordered pair Pls hurry up !!!!!
y=3x +8
5x+8y=6

Answers

5x+8(3x+8)=6
5x+24x+64=6
29x+64=6
29x=-58
X=-2

Y=3(-2)+8
Y=-6+8
Y=2
(-2,2)

(-2,2) is the correct answer

If rectangle ABCD is transformed to create rectangle A’B’C’D’, and the rule used was (x, y) --> (x, -y), which transformation has occurred?

A) Reflection across the y-axis
B) Reflection across the x-axis
C) Rotation of 90° around the origin
D) Translation

Answers

Answer: A) Reflection across the y-axis

guys i need help on my aleks topics pls!

Answers

No aswer is correct

Step-by-step explanation:

Alright so..

For a) it should be the second choice. You can clearly see as months pile on, so does the money. Now they ask for the rate. Let’s do the 6 months one. 423/6 is 70.5.

So the rate is for every 1 month, it’s $70.50 added. And if I’m not wrong, I believe she started with $70.50 in the bank. She rich rich

Ashley is digging for rocks at a geological site. She has 140 meters of rope and 4 stakes to mark off a rectangular area. Which set of dimensions will create a rectangle using all the rope Ashley has with her?

A: 14 m x 10 m
B: 70 m x 70 m
C: 60 m x 10 m
D: 55 m x 10 m

Answers

- A is the correct answer

The correct answer is A: 14 m x 10 m

One of the tables shows a proportional relationship.

Graph the line representing the proportional relationship from this table.

Also if you could have and image of where everything is supposed to be graphed that would be awesome.

Answers

Answer:

Table C.

Step-by-step explanation:

------> x = -2, y = -4 --->k = -4 / -2 = 2

------> x = -1, y = -2 --->k = -2 / - 1 =2

------> x = 1, y = 2 --->k = 2/1 = 2

------> x = 2, y = 4 --->k = 4/2 = 2

Table C, has the same value of k

Thus, table c represent a " proportional relationship "

Learn more here:

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A set of eight cards were labeled with D, I, V, I, S, I, O, N. What is the sample space for choosing one card?
S = {V, S, I, D, I, I, N, O}
S = {D, I, S, O, N}
S = {V, I, O}
S = {D, I}

Answers

Answer:S = {V, S, I, D, I, I, N, O}

Step-by-step explanation: Im not sure but im pretty sure that this is the answer

Please help ASAP 20 points

Answers

for 7 minutes the calories would be 28 and for 10 minutes the calories would be 40. for the constant of proportionality i’m not sure, maybe just 12/1 = 12, 20/1 = 20, 28/1 = 28, and 40/1 = 40.

12/1 = 12, 20/1 = 20, 28/1
= 28, and 40/1 = 40 would be the answer

On Wednesday, 50 cars received parking tickets. The next day only 24 cars received parking ticket.
What is the percent change?

Answers

Answer: -52

Step-by-step explanation:

Answer: -52%

Step-by-step explanation: Number of tickets received on Wednesday = 50
Number of tickets received on the next day = 24
Difference = 24 - 50 = 26
Percentage = -26/50 x 100% = -52%

A structure covering a sports practice field has the shape of half of a cylinder, as shown. What is the total surface area of the structure to the nearest square yard? Use 3.14 for pi.

Answers

Answer: E

Step-by-step explanation: Because yes

Determine which integers in the set S: {−2, −3, −4, −5} will make the inequality 2p − 8 < 5p + 4 true.

S:{−2, −3}
S:{−3, −4}
S:{−4, −5}
S:{−2, −5}

Answers

Shaun v 174738272 she’s

You flip a coin 8 times and get heads 6 times. so the probability is 6/8

Answers

Answer:

yes

Step-by-step explanation:

yes

Yes if you flip a coin eight times and get heads six times your probability is 6/8

help ASAP please, tysm!

Answers

Answer:

Step-by-step explanation:

Area of rectangle: 6

Area of triangle: 4+3+1 = 8

8x7=56/2 =28

28-6=22

Answer: 22

Step-by-step explanation:

First, you want to find the area of the triangle with the formula 1/2 × b × h.

1/2 x 8 x 7 = 28

Next, you want to find the area of the smaller rectangle with the formula, b x h

3 x 2 = 6

Then, you subtract the two numbers

28 - 6 = 22

If the Percent of Discount is 15% and the Sale Price is $146.54 what the Original Price? PLS Y'ALL GET 100 POINTS FOR DIS! PLS HELP ME!!??

Answers

Answer: the original price of the item was $172.40.

Step-by-step explanation: If the percent of discount is 15% and the sale price is $146.54, we can use the following formula to find the original price:

Original price = Sale price / (1 - Percent discount as a decimal)

First, we need to convert the percent discount to a decimal by dividing it by 100:

15% = 0.15

Substituting the given values into the formula, we get:

Original price = 146.54 / (1 - 0.15)

Original price = 146.54 / 0.85

Original price = $172.40

Therefore, the original price of the item was $172.40.

Answer:

172.40

Step-by-step explanation:

w-[0.15]=146.54

so w-85p=146.54

146.54 divided by 80=1.724 so when you make it a percent it turns it into 172.40 which is the final answer for the money.

The graphs of six linear equations are shown below. Which of these graphs have a greater rate of change than the equation y=1/2 x+3?

Answers

there is not graph shown but to find rate of change from a graph of a simple line or line segment, you find two points you can identify. Look for points with integer coordinates. Find the slope between those points by (y₂ - y₁)/(x₂ - x₁).

help me pls i dont get this

Answers

Answer: 0.12, 1/8, 14%, 0.2

Step-by-step explanation:

We can try and convert everything to a decimal in order to make things easier. 0.12 and 0.2 are already given to us. Now we convert 1/8 to a decimal by dividing 1 by 8 and you should get 0.125. Next convert 14% to a decimal by moving the decimal place 2 places foward, which gives you 0.14. Your numbers are 0.12, 0.2, 0.125, and 0.14 now you place them into order from least to greatest. Since one of them is three digits you can make the rest three digits to make it easier. 0.120, 0.200, 0.125, 0.140.

Your final answer would be 0.12, 0.125, 0.14, 0.2

Please help!
Thank you

Answers

Answer:

The answer is 11/12! Hope it helps!

1/4 * 2 3/4
= 1/4 * 11/4
= 11/16

help me pls, i need correct answers

Answers

Answer:2.16

Step-by-step explanation:

Which expression has a coefficient of 2? Choose All
A. x + 2y + 18
B. 1.2a + 4b + 2
C. 24k divided by 12
D. 17 + 2j
E. 2t divided by 100

Answers

Answer: A, D, E

Step-by-step explanation:

A. Is correct because the coefficient of 2y is 2. D. is correct because the coefficient of 2j is 2. Lastly, E. is correct because 2t has the coefficient of 2.

i need points but probably e i’m probably wrong

Candy has some money
She bought a drink for £ 1.45 and a piece of cake for £ 1.20
She now has two thirds of her money left.

How much money did Candy have to start with

Answers

Answer:

7.95

Explanation:

1.45+1.20= 2.65

2.65x3=7.95

HELp
what the least possible digit u can make using 2,0,2,3. AND this number has to be divisible by 4

Answers

Answer:

0232

Step-by-step explanation:

0232/4 = 58

a
15°

b
25°

c
30°

d
60°

Answers

∠CAB +∠ CBA +∠ ACB = 180°

Sum of all angle of triangle is 180° ..

75 + 75 + ∠ACB = 180°

∠ACB = 180° - 150°

∠ACB = 30°

Now ,

x = ∠ACB ( being vertically opposite angle)

x = 30°

The angle measure of x is 30°.

What is a Triangle?

The polygon known as a triangle has three sides and three vertices.

The triangle's total angle is 180 degrees.

Given that a triangle has 2 known angles measuring 75° and 75°.

Let the third missing angle measure is y.

And y and x are opposite angles in the diagram.

So, x = y.

The sum of all the interior angle measures of a triangle is 180°.

So, 75 + 75 + y = 180

y = 180 - 150

y = 30°

So x = y = 30°

Therefore, x = 30°.

To learn more about the triangle;

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What is the volume of the prism?

Answers

Answer:

Step-by-step explanation:

The volume of a prism is the product of the area of the base and the height of the prism. Prism volume (V) = B × h, where, B is the area of the base and h is the height of the prism. = l × w × h, where l, w, and h are the length, width, and height of the rectangular prism.

The volume of the triangular prism with dimension 2.5 cm, 3.2 cm and 8 cm is 32 cm³.

Given is a triangular prism with dimension 2.5 cm, 3.2 cm and 8 cm.

We need to find its volume.

The volume of the triangular prism = base area × height

Here,

Base area = area of the triangle

= 1/2 × base × height

= 1/2 × 3.2 × 2.5

= 4 cm²

And,

Height of the prism = 8 cm

Substituting the values,

V = 4 × 8

V = 32 cm³

Hence the volume of the prims is 32 cm³.

Learn more about triangular prism click;

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I don't really understand this question.

Answers

Answer:

a) 3/2 or 1 1/2

b) 5/3 or 1 2/3

Step-by-step explanation:

1/2 + 1/2 + 1/2 =

3 x 1/2 =

3/2 or 1 1/2

1/3 + 1/3 + 1/3 + 1/3 + 1/3 =

5 x 1/3 =

5/3 or 1 2/3

Answer: (a) 1 1/2 and (b) 1 2/3

Step-by-step explanation: (a) 1/2 + 1/2 + 1/2 = 1/2 x 3

= 3/2
Now convert this into mixed fractions (basically divide the smaller number of the improper fraction by the the bigger one).

Therefore, 3/2 = 1 1/2 ( 1 1/2 is 1 whole and 1/2)

(b) 1/3 + 1/3 + 1/3 + 1/3 + 1/3 + 1/3 = 1/3 x 5
= 5/3

mixed number = 1 2/3 ( 1 2/3 is 1 whole and 2/3)

50 POINTS AND BRAINLIEST TO CORRECT ANSWER!!
Answer the following linear equations: x3+y3+z3=k
2x – y = 6, x – y = 2
and ax + by = a-b, bx – ay = a+b
TYVM!! :)

Answers

Answer:

Linear Equation 1 — 3xyz

Linear Equation 2 — x = 4 and y = 2

Linear Equation 3 — x = 1 and y = (-1)

Step-by-step explanation:

(Linear Equation 1)
The equation x3+y3+z3=k is known as the sum of cubes problem. While seemingly straightforward, the equation becomes exponentially difficult to solve when framed as a "Diophantine equation" -- a problem that stipulates that, for any value of k, the values for x, y, and z must each be whole numbers.

The required result must be 3xyz.
(Linear Equation 2)

2x − y = 6 ....(1)

x − y = 2 ....(2)

Equation(2)−Equation(1) we get

x − y − 2x + by = 2 − 6

(−x) = (−4)

x = 4

Substitute x = 4 in (1) we get

2x − y = 6

2*4 − y = 6

8 − y = 6

(−y) = 6 − 8

y=2

(Linear Equation 3)

ax + by = a − b .......... (1)

bx − ay = a + b .......... (2)

Multiply equation (1) with a and equation (2) with b ,

a²x + aby = a² − ab ..........(3)

b²x − aby = ab + b² ......... (4)

Adding (3) and (4), we get,

(a² + b²)x = a² + b²

x = 1

Now, from (1),

ax + by = a − b

a + by = a − b

by = (−b)

y = (−1)

Hope my answer helps you ✌️

Mark BRAINLIEST

There are 30 businesses with 4 executives each for the new office building. Each business needs one office for each of its
executives. The building has 1,440 offices. What is the proportion of executives to offices?
A 1 to 12
B
4 to 1
C
1 to 6
D
6 to 1

Answers

Answer:

A. 1 to 12

Step-by-step explanation:

if each business has 4 executives there is a total of 120 executives

30(4) = 120

to find the proportion of executives to offices we divide the number of offices by the number of executives

1440/120 = 12

a more in depth look is

1440 offices / 120 executives

"offices" and "executives" cannot divide each other out, but the 1440 and 120 can so it would be

12 offices / 1 executive

Question is in picture down below
PLEASE include explaination

Answers

Answer: 3 units (look at the image for the solution)

Step-by-step explanation:

Answer:

109-5h

Step-by-step explanation:

Idek

A student wants to know the approximate distance between London and Beijing. Using a string, she finds that the distance on a globe between London and Beijing is about 36 centimeters and between London and New York is about 22 centimeters. The actual distance between London and New York is about 5000 kilometers. If she lets d represent the approximate distance in kilometers between London and Beijing, what is d rounded to the nearest whole number?

Answers

Answer: 8182

Step-by-step explanation:A correct proportion to use is 22 over 5,000 = 36 over d

rite an addition equation to show how you decomposed
7/6
.

Answers

Answer:

For the fraction model, fill the whole left bar, and only 1 in the right bar.

The addition equation is:

⅙ + ⅙ + ⅙ + ⅙ + ⅙ + ⅙ + ⅙ = 7/6

Explanation:

Since the bar is divided into sixths (1/6 each), just count by 1/6 each time you fill each one and use the equation to represent the process.

Other Questions

Describe two theories of active audience and any one theory of of passive audience In an essay form of two pages including the References what u.s. agency enforces regulations on product advertising and labeling? Which of these statements is true about seat belts on heavy equipment?A. If a vehicle doesn't have a rollover protective structure, you may not have to wear a seatbelt.B. You must wear seat belts that meet OSHA standards.C. You don't have to wear a seatbelt on equipment that is only designed for standup operation.D. All of these statements are true. Everyone who owns or manages a business is an entrepreneur.A. TrueB. False Here are pictures of six different types of dwellings you could find in different francophone countries. Pick one you would like to stay in as an exchange student. Indicate the number of the home you are describing. Explain in one or two sentences why it is your favorite. Perhaps there are cafes and boutiques to enjoy, or calming lakes and trees nearby. Which expression is equivalent toO132/2 I will give brainliest and ratings if you get this correct Explain 3 different purposes behind an authors work the viscosity of blood is ________ proportional to the number of erythrocytes and _______ proportional to the amount of fluid. Henry buys candy that costs $4 per pound. He will spend at most $20 on candy. What are the possible numbers of pounds he will buy?Use p for the number of pounds Henry will buyWrite your answer as an inequality solved for p. consequences of not reporting foreign contacts travel or business dealings may result in I need some help I'm confused which molecule did carl woese study to produce his tree of life? which statement about demand and supply is true? multiple choice question. an increase in the price of a good shifts the supply curve to the left. an increase in consumer income is likely to increase the demand for a normal good. an increase in consumer income shifts the demand curve to the left. an increase in the price of a good is likely to decrease the supply of the good. In the linear equation y=2x+3, if x increases by 4 points, how much will y increase? What is the meaning of "influence bargaining"? Look at the picture below which study as the most obvious beneficence? group of answer choices a social psychology study examining conformity a developmental psychology study examining moral development in preschoolers a health psychology study aimed at minimizing risk of cancer a clinical psychology study examining dosage for anxiety medication What effect did the Great Recession have on manufacturing employment?An average of more than 50,000 jobs was lost every month for 10 years.An average of more than 100,000 jobs was lost every year for 10 years.An average of more than 500,000 jobs was lost every year for 10 years.An average of more than 10,000 jobs was lost every month for 10 years. 5. In humans, normal skin color (A) is dominant over albino (a) and diabetehas been found to be inherited (in some cases) through a recessiveallele. A diabetic albino man marries an normal woman whose motherwas an albino and whose father was diabetic. What are the genotypesof the man and woman? What percentage of their children would beexpected to be both non-diabetic and have normal color?