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

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

What property is this?
-5 + (5 + 3)
A) Multiplicative Identity
B) Multiplicative Inverse
C) Commutative Property
D) Associative Property
E) Distributive Property

thx...

Answers

Answer:

It is associative property.

(a+b)+c = a+(b+c)

D) Associative Property.

Hope this helps! :)

What is 1.000000000+1.000000000

Answers

Answer:

Step-by-step explanation:

it is bascially 1+1

Answer:

Step-by-step explanation:

1+1=2

A student mixes two substances in a large beaker. After two hours, the student sees that the substances have separated again.

These substances MOST LIKELY differ in their —

Answers

Answer:

Densities

Step-by-step explanation:

I am really not sure

Answer:

densities

Step-by-step explanation:

oil and water separate because of their differences in density

Suppose your heart beats 70 times a minute. Combine the time it will take for it to beat 1 million times.

Answers

Answer:

For example, if your heart beats 72 times per minute, 70 beats per minute would give a reasonable estimate. Next find how many days it takes for 1 million heartbeats: 1,000,000 ÷ 100,000 = 10. Thus, 1,000,000 beats take 10 days.

Step-by-step explanation:

Answer:

14285.7142857

Step-by-step explanation:

1,000,000 divided by 70 equals 14285.7142857

~~Hope this helps~~~ :)

here are some numbers 2 9 14 36 40 what number is a multiple of 12 which number is a prime number which number is a factor of 64

Answers

Answer: 36 is a multiple of 12

2 is a prime number.

2 is a factor of 64

Step-by-step explanation:

12 × 3 =36, so 12 is one of the factors.

2 is the only even prime number. All other even numbers are multiples of 2.

9 is not a prime number. 3 × 3 = 9

2 is a factor of 64. 2 × 32 = 64 None of the other numbers given can divide evenly into 64, so they are not factors of 64.

Answer:36 is a multiple of 12

Step-by-step explanation:

Use the second pair of points to do each of the following. The second pair is (-6, 7), (6, -1).

1. Give the slope
2. Write the equation in point-slope form.
3. Write the equation in slope-intercept form.
4. Write the equation of the line in standard form.
5. Give the x-intercept from standard form (remember, let y=0)
6. Give the y-intercept from standard form (remember, let x=0)

Answers

I like ur pfp Tehehe

Find the quotient. Answer to the nearest hundredth. 6,476 ÷ 12

Answers

Answer:

539.67

Step-by-step explanation:

When you divide use long division. You get 539.666 you round to the hundredths and get 539.67 When you round if the number is bigger than 5 you add one if it’s less than 4 you keep the same in this problem the six in the thousandths was bigger than five so you up the hundredths place by One which makes that six into a seven and your new answer is 539.67

The price of a stock went from $32 to $28. If p is the percent decrease in the value of the stock, which proportion can be used to compute p?

A.
B.
C.
D.

Answers

Answer:

12.5%

Step-by-step explanation:

32/4=8 32-28=4 4=1/8 1/8=12.5%

But there are no options so...

Answer: A

Step-by-step explanation: 32 - 28 = p

32 100

grapes are sold for $3.20 per bag. if you have $12, how many bags of grapes can you buy?

Answers

Answer:

you can buy 4 bags of grapes with $12.

Step-by-step explanation:

Hope this helps :)

Answer:

Step-by-step explanation:

Since we know that one bag of grapes = $3.20, we can divide $12 by $3.20 to get how many bags of grapes you can buy.

12/3.2=3.75.

In the exact amount, you can buy 3.75 bags of grapes. Now you can't buy .75 of a bag. Rounding it, you would have approximiatly bought 4 bags. Reality, you would have bought 3 bags.

Find the measures of two supplementary angles if their measures are in the given ratio.
3:7

Answers

Two supplementary angles are in the ratio 3:7. Find the angles ?

Let the two angles be 3x and 7x.

Supplementary angles add up to 180 degrees.

Therefore:

3x + 7x = 180

10x = 180

x = 18

3x = 3 * 18 = 54

7x = 7 * 18 = 126

Measure of angles are 54° and 126°.

What is Supplementary angle?

Sum of two or more angles are 180 degrees then, the angles are called supplementary angle.

Given that;

The ratio of angles are 3 : 7.

Now,

Let the two angles be 3x and 7x.

Since, Supplementary angles are add up to 180 degrees.

So,

3x + 7x = 180

10x = 180

x = 18

So, First angle of supplemental angles = 3x

= 3 × 18

= 54

And, Second angle of supplemental angles = 7x

= 7 × 18

= 126

Thus, Measure of angles are 54° and 126°.

Learn more about the supplementary angle visit:

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Determine the x- and y- intercepts of the graph of

y = - 1/2 x - 4

Answers

x = -8
y = 2

ksnckcmmcmcvkdmel mskfkkckdmc

X equals -2 djdjrjdnfndndnrnejdjddjjddj

What is X?

I'm too lazy to do math today...

Answers

Answer:

x=10

Step-by-step explanation:

because since the objects are similar, you subtract 4 from 9 to get five. Then subtract 5 from 15.

Answer:

6 2/3

Step-by-step explanation:

3x -30 +4x = 7x + 24

Please answer quickly!! will give brainliest!

Answers

Answer:

There are no solutions.

Step-by-step explanation:

I’m sorry there aren’t any solutions

A tropical species of mite named Archegozetes longisetosus is the record holder for the strongest insect in the world. It can lift up to 1.182 × 103 times its own weight. If a person who weighed 100 pounds were as strong as this insect, how much could that person lift? Enter the answer using scientific notation.

Answers

Answer:

The first thing we have to do is to measure your weight using a weighing scale.

Suppose your weight is 130 pounds, therefore you can lift:

130 pounds * 1.182 • 10^3 = = 153,660 pounds or 1.537 x 10^5 pounds

hope it helps

Step-by-step explanation:

solving equations of different solution types

Answers

Answer:

Where's the worksheet

Step-by-step explanation:

8 hundred + 10 tens+0 ones
.........

Answers

Answer:

it's 900

Step-by-step explanation

1.1 x 10^6 convert in standard form

Answers

Answer:

1100000

Step-by-step explanation:

Answer:

1100000

Step-by-step explanation:

Move the decimal place over 6 places to the right

Which pair of angles are an example of alternate exterior angles?

A. Angle 1 and Angle 7

B. Angle 3 and Angle 6

C. Angle 2 and Angle 7

D. Angle 1 and Angle 4

Group of answer choices

Answers

Answer:

c. is the answer becuase since it is exterior they are talking about the outside of the parellel lines.

Step-by-step explanation:

I need help pls and thank you

Answers

Step-by-step explanation:

So you Have to find the area of the shape

so you have to multiply 9x9 and 7x7

so it 81 and 49

so then you multiply it

81x49

3969 is your answer

C=3969

11.4017 I think it’s the right answer

Which function is negative for the interval [–1, 1]?

Answers

Answer:

The second graph is the answer.

2 graph is the answer

classify the number: -23

Answers

wouldn’t the answer be 23?

It would be an integer

The plesiosaur’s stomach had 2.25 kilograms of gastroliths. The largest stone was 0.074 meter long, 0.048 meter wide, and 0.022 meter thick.
3. Write the length of the largest stone as a number name and in expanded form.
Please hurry!

Answers

Answer:

2.25=5

Step-by-step explanation:

2.25 = 5 glad i could help

Please answer with explanation if you can

Answers

Answer:

Step-by-step explanation:

D

2p+30+2p-30+p=180
5p+30-30=180
5p=180
p=36

Which of the following expressions represents the perimeter, in feet, of the rectangle?

Question 3 options:

6n + 5

13n + 10

10.5n + 10

20n + 5

Answers

Answer:20n+5

Step-by-step explanation:

20n+5 thats the correct answer

Can someone help me with this? It’s unit rates with price. Question: 6 feet of ribbon for $19.20

Answers

19.20 dived by 6

just do that then you get the answer

Answer:

What are you asking? Is this division? If its division the answer is $3.02

Step-by-step explanation:

$19.20 ÷ 6

A 270-degree counterclockwise rotation about the origin followed by a translation 2 units to the right.

Answers

Answer:

Oh okay lol

Step-by-step explanation:

bleep bloop

Answer:

thank you for the free points hehe loaf ju:)

Write the standard numeral for 160 thousand four.

Answers

Answer:

160,004

Step-by-step explanation:

Find: Standard numeral for 160 thousand four

Standard Numeral: The basic form of the number.

------------------------------

For example:

Fourty-eight= 48

-------------------------------

In this case, we are finding:

160 thousand four:

-------------------------------

1 thousand= 1,000

160 thousand= 160 times of that thousand= 160*1,000= 160,000

160 thousand four= 160,000 plus the extra 4=

160,000+4=

160,004

In conclusion, the standard numeral for 160 thousand four is:

160,004

The Answer Is 160,004

help with math homework chapter 1 practice

Answers

Answer:

P+C = R R = $870

Step-by-step explanation:

Hi!

P= R-C

+C +C

P+C = R

P= $350 C= $520

$350+ $520 = $870

R = $870

Hope this helps!

Answer:

$870

Step-by-step explanation:

350= R-520

Add 520 to each side

R= 870

For 10 points, Which measurement is the best estimate for the height of a school bus?

A) 4 m
B) 4 km
C) 4 cm
D) 4 mm

Answers

You have to think of how high the school bus is but I believe it’s A) 4 meters

The dimension of the bus, car, and so on is measured in meters because the 1 or 2 centimeters can be neglected. Then the correct option is A.

What is Algebra?

Algebra is the study of abstract symbols, while logic is the manipulation of all those ideas.

The acronym PEMDAS stands for Parenthesis, Exponent, Multiplication, Division, Addition, and Subtraction. This approach is used to answer the problem correctly and completely.

The measurement of the object is taken by its length. For example - the distance between the cities is measured in kilometers because the 1 or 2 meters can be neglected.

Similarly, the dimension of the bus, car, and so on is measured in meters because the 1 or 2 centimeters can be neglected.

Then the correct option is A.

More about the Algebra link is given below.

https://brainly.com/question/953809

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What is 1/12 as a simplified fraction?

Answers

Answer:

that is the simple as it can be

The simplified fraction should be the same i.e. [tex]1\div 12[/tex]

What is a fraction?

A fraction comprised of two parts. The top part is known as the numerator while on the other hand, the lower part is known as the denominator.

Since the fraction given is [tex]1\div 12[/tex]

So, the simplified fraction should be the same.

Learn more about fraction here: https://brainly.com/question/17748421

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