Help with 8th-grade middle school math show work

Help With 8th-grade Middle School Math Show Work

Answers

Answer 1

Answer:

So for the triangle, we have x = 25 and the angles 45-75-60.

So for the quadrilateral, we have x = 75 and the angles 70-110-75-105.

Step-by-step explanation:

For each of these problems, we can simply add the expressions of the angles given matched to the sum of the angles for the shape given below.  Once we do this, we can solve for x, and then state the given measures of each angle of the shapes.

For the triangle:

60 + ( x + 20 ) + 3x = 180

60 + x + 20 + 3x = 180

60 + 20 + x + 3x = 180

80 + x ( 1 + 3 ) = 180

80 + x ( 4 ) = 180

80 + 4x = 180

4x = 100

x = 25

We have the given angles:

x + 20 ==> 25 + 20 ==> 45

3x ==> 3 (25) ==> 75

60

So for the triangle, we have the angles 45-75-60.

For the quadrilateral:

( x - 5 ) + ( x + 35 ) + x + 1.4x = 360

x - 5 + x + 35 + x + 1.4x = 360

35 - 5 + x + x + x + 1.4x = 360

30 + x ( 1 + 1 + 1 + 1.4 ) = 360

30 + x ( 4.4 ) = 360

30 + 4.4x = 360

4.4x = 330

x = 75

So, we have the given angles:

x - 5 ==> 75 - 5 ==> 70

x + 35 ==> 75 + 35 ==> 110

x ==> 75

1.4x ==> 1.4(75) ==> 105

So for the quadrilateral, we have the angles 70-110-75-105.

Cheers.


Related Questions

Plsssss Help!!!! Answer if you know pls.
Two functions are used to solve a problem
Function A is represented by y=3x+10
Function B is represented by this table of values:

Plsssss Help!!!! Answer if you know pls. Two functions are used to solve a problem Function A is represented

Answers

Answer: The answer is Function B has greater rate of change because 9>3.

Step-by-step explanation: 13-4= 9 & 1-0= 1, so it becomes 9/1 or 9, and Function A has a rate of change of 3.

Hope this helps.

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Answers

Answer:

1)e

2)d

3)c

4)f

5)b

6)a

Step-by-step explanation:

1e
2d
3c
4f
5b
6a
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Brayden is selling lemonade in glasses that hold of a gallon? If he makes gallons of lemonade, which expression shows how many glasses he can sell?

a. 2 7/8 ÷ 12
b. 1/12 ÷ 2 7/8
c. 2 7/8 ÷ 1/12
d 1/12 ÷ 8/23

Answers

Answer:

2 7/8 ÷ 12

Step-by-step explanation:

Divide the amount of lemonade made by the amount that each glass can hold.

a. 2 7/8 divided by 12

How much time has passed from the first clock to the second clock?

How much time has passed from the first clock to the second clock?

Answers

Answer:

easy 10 hours

Step-by-step explanation:

Answer:

The time passed is less than one hour. So ten hours.

Why were the colonist fighting? Who and what were they fight for?

Answers

Answer:

The colonists fought the British because they wanted to be free from Britain. They fought the British because of unfair taxes. They fought because they didn't have self-government. When the American colonies formed, they were part of Britain.

Step-by-step explanation:

Answer: they were fighting because they wanted their own independence they were fighting for themselves and they were also fighting so they could have their own rights and not have to pay the taxes that were high and so they didn't have to house British soldiers in their own homes.

Step-by-step explanation:

Please help my sister finish this

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answer :

it would probably be 2 factors .
8x = 1 factor + is another and 5 is a third.
3.

Continue the division of 1/6 for 2 more decimal places. What do you notice? Answer in a complete sentence.

Answers

Answer:

1/6 is equal to 0.166666667; 1/6 is 0.17 if rounded to the hundredth place.

Step-by-step explanation:

divide 1 by 6.

Round it up

1/6 can be said as 1.66667, but fan simply just be rounded to 1.7 or 1.67

Please help me,
Gia is thinking of a number, which she calls n. She adds 4 to the number and then doubles the sum.
Write an expression to represent Gia's number.

(I don't know what the expression is, if u can help me, please write the answer! :)

Please help me, Gia is thinking of a number, which she calls n. She adds 4 to the number and then doubles

Answers

Answer: 2n + 8

Step-by-step explanation:

1st part:
n + 4

2nd part:
Multiplies the 1st part by 2

2(n + 4)

2n + 8

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Duke wants to hire someone to re-tile his bathroom. The research he found for three local tilers is presented in the table below. He was able to find the average area of their tiling jobs and the time it took the tilers to complete the job.
(the drop boxes for the first 3 are porportional or not porportional and last last one says do not have or have)

Duke wants to hire someone to re-tile his bathroom. The research he found for three local tilers is presented

Answers

Answer:

1) proportional

2) not proportional

3) not proportional

4) have

Step-by-step explanation:

Toni’ Tiles rate of change is about: 6.083

Bob’s Bathrooms rate of change is 6.083

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Duke wants to hire someone to re-tile his bathroom. The research he found for three local tilers is presented in the table below. He was able to find the average area of their tiling jobs and the time it took the tilers to complete the job.
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i will give brainliest to correct answer

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Answers

Answer:

90

Step-by-step explanation:

Tell whether each relation is a function. Explain how you know.
3. {(1, 5), (3, 7), (6, 5), (9, 8}

4. {(1, 2, (1, 8), (3, 6), (4, 8)}

Answers

Answer: None of them are a function

Step-by-step explanation: they don't relate

3.) This is a function because all of the x values are different

4.) This is not a function because their are two 1’s in the x value

Find the volume of a prism. Show your work.

Find the volume of a prism. Show your work.

Answers

Answer:

Step-by-step explanation:

11 times 22

the area of its cross-section multiplied by the length

answer: 242cm squared

The answer is 242 CM squared. The answer above explains better than I can :)

Complete the statements based on the diagram.

mAngleA = 27° because it is
to the 27° angle.
The measure of Angle
can be found because it is a vertical angle to the 93° angle.
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degrees.

Complete the statements based on the diagram.mAngleA = 27 because it is to the 27 angle.The measure of

Answers

A= 27
B= 60
C= 93
Sum of A, B, & C is: 180 degrees

Answer:

an alternate interior angle, C, and 180 degrees.

Step-by-step explanation:

hope this helps

right on EDGE 2021 for Math

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Answer:

This says middle school.. What grade are you in? I am in 8th grade and do not know any of that...

I have never seen work near that.........

i’m in 10th and i’ve never seen that.

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Answers

it’s 32 because 4/5ths of 40 is 32
The answer is 32
160/5 =32

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Answers

Answer:

Step-by-step explanation:

form. Meaning you need make both fractions improper

Make sure each number is turned improper.

GIVING BRAINLIEST how many angles does a triangle have

Answers

Answer:

The sum of the measure of the angles always equals 180 degrees.

Step-by-step explanation: 3 angles

Answer:

3

step by step instructions:

A Trying go Hey 3 angle when IH birthday bounded by a pair of adjacent sides.

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Kenneth says the system has no solution
Do you agree?
Yes or No

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Answers

No. As the lines continue they will intersect.
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What do the rates of change represent in the problem?

What do the rates of change represent in the problem?

Answers

Answer: the slope, change in Y over change in X simplified

Find the surface area of a top open cylinder

12 in radius
2 in height

Find the surface area of a top open cylinder 12 in radius 2 in height

Answers

The surface area of the top open cylinder is 6810.149 sq.cm.

A cylinder is a three-dimensional solid that consists of two congruent surfaces (bases) and one lateral surface.

Surface area of a cylinder = Base area + Lateral area

Base area of a cylinder = 2 × π × r²

Lateral area of a cylinder = (2 × π × r) × h

Therefore, here base area of a cylinder = 2× π × 12²

                                                                  = 5837.27 sq.cm.

And, lateral area of a cylinder = (2 × π × 12) × 2

                                                  = 972.8784 sq.cm.

Therefore, total surface area of a cylinder = 5837.27 + 972.8784

                                                                      = 6810.149 sq.cm.

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Surface Area: 6810.15 cm^2

Please help me with the answer

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Answers

The cost that will maximize the demand, considering the quadratic function, is given as follows:

$3.

How to maximize the demand?

The quadratic function representing the demand is given as follows:

y = -10x² + 60x + 180.

The vertex of a quadratic function is the point on the graph where the function reaches its maximum or minimum value. For a quadratic function in standard form y = ax² + bx + c, the x-coordinate of the vertex is given by:

x = -b / (2a)

The coefficients of the quadratic function in this problem are given as follows:

a = -10, b = 60.

The x-coordinate is the price that maximizes the demand, hence it is obtained as follows:

x = -60/(2 x (-20))

x = 3.

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Josh keeps his socks and shirts in different drawers. He has twelve white, five blue, and seven black socks. He also has three white, five black, and two grey shirts. He pulled out a sock and a shirt in the dark.



What are the chances that he will get a black sock and a grey shirt?

Answers

Answer:

P(blk sk AND gy shr)=P(blk sk)*P(gy shr)=7 /578

P(gy shr)=2/34

P(blk sk)=7/34

blk=Black

sk=Sock

gy=Grey

shr=Shirt

89% chance of pulling out a black sock and a grey shirt

Find the total cost with sales tax.

Markup (tax) = percent markup (tax %) x original cost ($)

Total cost = original cost + sales tax


Courtney has $21.50 to buy a gift for her brother. She found a stuffed animal that costs $19.65. With 10.1% sales tax added on, what is the sales tax? What is the total cost of the stuffed animal with tax included? Will Courtney have enough money to buy the gift?

The sales tax is: $_________

The total cost is: $_________

Is it enough money?

Answers

Answer:

Sales tax: 1.98465 which in this case is $1.98 (take note that you can round and it would be $2)

The total cost: $21.63 so no, Courtney cant buy the stuffed animal :(

Step-by-step explanation:

You can find the sales tax by dividing 10.1 by 100 to get 1.984...then rounding that number to get $1.98 since we are working with money in this problem then we have to find the total cost by adding our sales tax ($1.98) to our original cost ($19.65) to get our FINAL answer of $21.63

Hope this helped!!!!!

(i would appreciate being marked brainiest but it is ok if you don't)

The cost P, in GHC, of producing n items is given by the formula, P = 3/4n + 1800, find

i. Cost of when no items are produced.

Please it's urgent.Please show working.

Answers

Answer:

That is a picture of the answer and the explanation

Step-by-step explanation:

The cost P, in GHC, of producing n items is given by the formula, P = 3/4n + 1800, find i. Cost of when
The cost P, in GHC, of producing n items is given by the formula, P = 3/4n + 1800, find i. Cost of when

Answer:

1800

Step-by-step explanation:

P = 3/4n+1800

n=0

3/4(0)+1800

0+1800

0+1800

1800

Therefore, the cost of producing no items is GHC 1800.

Hope it helps.

you purchase a telescope in a state with a 5% sales tax you pay 12.45 in tax how much was the telescope

you purchase a telescope in a state with a 5% sales tax you pay 12.45 in tax how much was the telescope

Answers

249 as you times 12.45 by 20 to get from 5% to 100%
249 as you times 12.45 x 20 to get from 5% to 100%.

Write a story to represent the expression 6 divided by 3/4. Use multiplication to show the solution.

Answers

Answer: 6 divided by 3/4 is 8

Step-by-step explanation:

First when you divide 6 and 3/4. We use a dividing a fraction by a whole number. We have to make 3/4 into 4/3 to make it easier because we are trying to have a whole number. Then you multiply 6 and 4 to get 24 then you divide by 3 so you get 24/3. When you divide this, you get 8.

Once up a time there were 6 and there were 3/4. 6 was the big guy. 3/4 was the smallest in the hood. they were enemies. One day they had a fight and 6 was divided by 3/4 and became 0.5 or 1/2. now 3/4 was the big guy.

Learn more at https://brainly.com/question/878546

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help me pls an thx u

help me pls an thx u

Answers

Answer: 4, 1, 3, 2

Step-by-step explanation:

Numbers that fall in the times:

18 to 22 - 21, 18, 19, 22

23 to 27 - 26,

28 to 32 - 29, 29, 29

33 to 37 - 37, 33

Answer: 4 , 1 , 3, 2

This is for a friend pls help him

This is for a friend pls help him

Answers

Answer:

4 inches wide

Step-by-step explanation:

We see that 984 ÷ 328 = 3, so the real Eiffel Tower is 3 times as tall as it is wide. So the scale model must also be 3 times as tall as it is wide. If the scale model is 12 inches tall, then it is 12 ÷ 3 = 4 inches wide.

4 inches


984/12=82
328/82= 4
4 inches is the width

???????????????????????????

???????????????????????????

Answers

Answer:

12 and 78 are complementary.

80 and 100 are supplementary.

50 and 50 are neither.

Step-by-step explanation:

Hope it helps! =D

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