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

39 ft/min= ____ yd/s explain your reasoning

Answers

1yd=3ft...so 39ft=(39/3)=13yds

1mins =60seconds

13/60=0.22yds/secs

Answer:

0.216667

Step-by-step explanation:

1 yard= 3 feet

1 min = 60 seconds

Therefores

1 yd/ min= 180 ft/sec

39/ 180 = 0.216667 yd/s or

What is the length of a line of 1 million centicubes? Write your answer using as many conventional units of measure as possible.

Answers

Answer:

1000000 centimetre

100000 meter

1000 kilometer

Step-by-step explanation:

Select the equation that is true.

A 1,935 ÷ 103 = 0.1935
B 1,935 ÷ 103 = 1.935
C 1,935 ÷ 103 = 19.35
D 1,935 ÷ 103 = 193.5

Answers

The answer is C hope this helps

Which statement about the ordered pairs (2, - 9) and (3, - 6) are true for the equation
5x - y/3 = 13

Answers

Answer: its not completed so half but the answer is 15x39

Step-by-step explanation: because y = 15x39

15x39 if you follow the slope you should get your answers

Solve the following equation, and check your solution. Show all of your work.

−17+[tex]\frac{n}{5}[/tex]=33

Answers

Answer:

n=250

Step-by-step explanation:

How is adding two negative fractions like adding two positive fractions.
ples help me

Answers

Answer:

A negative fraction subtracted from another is the same thing as adding the positive complement of that fraction. Make the denominators (the bottom of the fraction) the same, if they are not already. You can only add halves to halves or quarters to quarters or tenths to tenths and so on. Hope this helps!!

Step-by-step explanation:

two un-positive numbers  make a positive

Step-by-step explanation:

For example: -2 + -2= 4

Simplify
1/2(2a+b) - (4a + b)

I appreciate whoever can help me! :D

Answers

Answer:

-3a-1/2b

or -3a-0.5b

Step-by-step explanation:

1/2(2a+b)-(4a+b)

a+1/2b-4a-b (Evaluate Exponents)

-3a-1/2b (Combine like Terms)

Help please I don't understand

Answers

Answer:

-20/7

Step-by-step explanation:

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:)

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:

Solve the proportion 45=28x using two different methods. Explain each method

Answers

Answer:

x=45/28  

Step-by-step explanation:

1.

You need to isolate the variable by dividing each side by factors that don't contain the variable. In this case, the variable would be x. Isolate x and divide it by the two factors. You have your answer.

2.

Another way you could do it is by using a proportion. You would need to set up your proportion by dividing both sides of the equation by the same term and then simplify the whole problem. You will still be left with a variable.

2.4 x 102 = ___

2.4
24
240
2,400

Answers

The answer is c or 240!
The answer is c because the real answer is supported to be 244.8 but it is not there so the closet is 240

Evaluate 5+(−3) =

plz I need help

Answers

Answer:

2

Step-by-step explanation:

it's just 5 - 3 lol, 5+-3=2

Answer:

2

Step-by-step explanation:

5+(-3)

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

When you are adding a negative you are subtracting.

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

In this equation, we can replace the "+(-)" with "-" like this:

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

5+(-3)=

5-3=

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

With that, the final answer is...

5-3=

2

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

What is the greatest common factor (GCF) of 124 and 152?
A. 2
B. 1
C. 8
D. 4

Answers

Answer:

4

Step-by-step explanation:

The factors of 124

1, 2 , 31, 62, 124

The factors of 152

1, 2, 4, 8 ,19, 38, 76, 152

Hope this helps

Answer:

C. 4

Step-by-step explanation:

factor both numbers

124 = 2 * 2 * 31

152 = 2 * 2 * 2 * 2 * 7

in common

2 * 2

2 * 2 = 4

so the GCF is 4

f(x)=4(13)2x helppp plzzz

Answers

Answer:

f(x)=104x

Step-by-step explanation:

f(x)=4(13)4x

f(x)=52*4x

f(x)=104x

The answer would be 104

Ok so I just did A test and I got 11 out of 17 right what was my score

Answers

Answer:

oof i think thats a 65%

Step-by-step explanation:

Answer: 64%

Step-by-step explanation: First, divide 11.000 by 11. You should get 0.64. Next, move the decimal two spots to the right. Lastly, add a percentage sign. The final result is 64%. For me, that’s an F+. (In my school)

Convert to a decimal: 5/8

Answers

0.625 is 5/8 in decimal form

Remember to convert a fraction into a decimal you divide the numerator by the denominator

For example for this question you do 5 divided by 8
The answer is 0.625 in this fraction

The high school decided to buy new uniforms for the girls’ and boys’ basketball teams. They plan to buy 35 uniforms with a total cost of $1,235. The store offers discounts based on the number of items the school buys, as shown. What will the discounted price be for the high school?

Answers

not enough info to get the answer.

Answer:

$35.28

Step-by-step explanation:

If you would divide 1,235 by 35

After learning how to fly, Wendy reduced her daily commute time by 75%. Previously, her commute took m minutes.
Which of the following expressions could represent Wendy's commute time, in minutes, after she learned how to fly?
Choose 2 answers:

A 0.25m

B [tex]\frac{1}{4} m[/tex]

C 1.75m

D [tex]\frac{3}{4} m[/tex]

E 0.75m

Answers

Answer: Since she reduced her daily commute time by 75%, her time now is 25% of her original. Thus, you have 0.25m or 25m%.

Step-by-step explanation:

100%-75%= 25%
25% converted to decimal for is 0.25

When juggling, a ball travels in a complete circle would the ball travel in two minutes

Answers

Missing information
Missing information !!!!

Evaluate x + y + z for x = 2, y = -3, z = -4.

Answers

Answer:

-5

Step-by-step explanation:

first you switch the letters for numbers and add the numbers on paper, calculator, or you just think it all out in your head :D

Answer:The answer would be-5

If it is 85 degrees outside in California and -4 degrees in Nebraska, how many degrees warmer is it in California?

Answers

Answer:

It is 89 degrees warmer in California

Step-by-step explanation:

the absolute value of -4 is 4, so add 85 plus 4.

Answer:

89 degrees warmer

Step-by-step explanation:

-4 + 89 = 85

this question is for people who need help with points to ask a question. What is the value of 32⁰ + 1²³⁹? Iḿ giving this easy problem so people can get brainliest and points

Answers

Answer: The answer to that question is 2

Step-by-step explanation:

1^239 equals 1

32^0 equals 1

1 + 1 = 2

1+1=2


1^239 equals 1



32^0 = 1

Write the expression below in standard form.

8h - 3(4 + 5h)

Write the expression below as a product of two factors.

12n + 8m - 4

Answers

the first problem is: -7h - 12

the second one is: 4 (3n+2m-1) i think

Cassie’s score in a card game is 4 points away from zero. If Juanita’s score is the opposite of Cassie’s and is a negative value, what is Juanita’s score?

Answers

-4 is juanitas score.

Juanita's score will be - 4, representing a negative value, and Juanita's score is the opposite of Cassie's.

What is a numerical expression?

A numerical expression is an algebraic information stated in the form of numbers and variables that are unknown. Information can is used to generate numerical expressions.

Steve's score is 4 points away from zero.

This means it may be 4 or - 4

Juanita’s score is the opposite of Cassie’s

This means Cassie’sscore is the opposite of Juanita’s.

Juanita’s score is negative.

The opposite of positive will be negative.

So, Cassie’sscore will be 4, and Juanita’s score will be -4.

Thus, Juanita's score will be - 4, representing a negative value,

To learn more about numerical expression click here :

https://brainly.com/question/6037813

#SPJ2

Sorry I’m spamming this question but I need to get this done.. and I don’t understand

Answers

A squared + B squared =c squared

Your friend washed 3/4 of the car in 1/2 of an hour. She says her answer means she can wash 6 cars in 4 hours. Is her answer written as a unit rate? Her work: 3/4÷1/2= 3/4●2/1= 6/4 Select all that apply.

A) Yes, it is correct.
B) No it is not correct.
C) The correct unit rate is 3 cars in 2 hours
D) The correct unit rate is 1 1/2 cars in one hour.
E) The correct unit rate is 2/3 cars in one hour.
F) The correct unit rate is 2 cars in 3 hours.

Answers

Answer:

The correct answer is E.

Step-by-step explanation:

Answer:

e

Step-by-step explanation:

An ice cream shop makes $15 for every 4 milkshakes they sell. If they made $71.25 in one hour on milkshakes, how many did they sell?

Answers

Answer:

19

Step-by-step explanation:

15/4=3.75

71.25/3.75=19

Answer:

19

Step-by-step explanation:

There is a pic thanks and please hurry!!!​

Answers

Answer:

x>7  or  x≥9

I hope this helps

x>7 or x equal to or more than 9

match the term on the left with the equivalent term on the right

Answers

Blue 2nd, purple 1st, orange 3rd, and green 4th

Ours are mixed, but here.

Sorry, im late. If anyone cant see the picture then I wrote it out for you all.

(1/5)x goes to (x)/5

5 ÷x goes to 5/x

x/2 goes to (1/2)x

and

(x)(2) goes to 2x

Hope this helped.

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