Mathematics Middle School

For each expression, write an equivalent expression that uses only addition. Don't use any spaces in your answers and don't rearrange the order of the terms.
a) 20−9+8−7
b) 4x−7y−5z+6
c) −3x−8y−4−7z

Answers

Answer 1

Answer:

a) 11-1

b)

c)

Step-by-step explanation:

could I make them negative numbers I will come back a put the answers but I just need to know.

Related Questions

Can someone round this to the nearest tenth
3.14 x 4 x 4 x 7
or
3.14 x 7 x 7 x 4
A- 124.6
B- 87.9
C- 97.5
D- 78.9

Answers

Answer:

I think its A

Step-by-step explanation:

I did the math and thats what i got even rounded up

The value of the expression 3.14 x 4 x 4 x 7 is  351.4 and for expression 3.14 x 7 x 7 x 4  is 615.4.

To round the expression to the nearest tenth, we need to evaluate it first. Let's calculate each expression:

3.14 x 4 x 4 x 7 = 351.36

3.14 x 7 x 7 x 4 = 615.44

Now, let's round each result to the nearest tenth:

Rounding 351.36 to the nearest tenth gives us 351.4

Rounding 615.44 to the nearest tenth gives us 615.4

Based on the given options, neither result matches exactly.

However, option A (124.6) is the closest rounded value to 351.4.

To learn more on Expressions click:

https://brainly.com/question/14083225

#SPJ6

The students in Ms. Hill’s class are reading a 325-page book. There are about 90,000 words in the book.
Ms. Hill said the students should try for a reading rate of 200 words per minute for greatest comprehension.

The students in Ms. Hill’s class are reading a 325-page book. There are about 90,000 words in the book.
Ms. Hill said the students should try for a reading rate of 200 words per minute for greatest comprehension.

Jamie read 81 pages of the book in 2 hours.



The students in Ms. Hill’s class are reading a 325-page book. There are about 90,000 words in the book.
Ms. Hill said the students should try for a reading rate of 200 words per minute for the greatest comprehension.

Molly read 65 pages of the book in 80 minutes.



The students in Ms. Hill’s class are reading a 325-page book. There are about 90,000 words in the book.
Ms. Hill said the students should try for a reading rate of 200 words per minute for greatest comprehension.

Edgar read 72 pages of the book in 95 minutes.



The students in Ms. Hill’s class are reading a 325-page book. There are about 90,000 words in the book.
Ms. Hill said the students should try for a reading rate of 200 words per minute for greatest comprehension.

Tyrone read 89 pages of the book in 2 hours and 10 minutes.

Answers

Answer:

Whats the question tho

Step-by-step explanation:

:)

PLEASE ANSWER TODAY! THANK YOU! :)

Answers

Answer:

The 2nd is 1/3,

and the third one is 3.

Step-by-step explanation:

Answer:

1/3

Step-by-step explanation:

A science classroom has 5 turtles and 7 frogs. What is the ratio of FROGS to TOTAL animals?
5:7
7:12
5:12

Answers

Answer:

7:12

Step-by-step explanation:

there is 5 turtles and all 5 turtles plus 7 frogs = 12

(5+7+12)

7:12

Answer:

7:12

Step-by-step explanation:

Frogs = 7

Total= 7+5 =12

Ratio = 7:12

sorry im asking another question but yeah

Answers

20x8 divide by 5 plus 5
160 divide by 5 plus 5
32 plus 5
you get 37
The Answer is 37, hope this helps

PLEASE HELP!!!! Kevin has 25 dollars. MP3 downloads cost 0.75 each. How many songs can he download and still have to spend?

A. Write an inequality that represents Kevin's situation.


B. How many downloads can Kevin purchase? Justify your answer

C. Graph the solution on a number line

Answers

he can purchase 33 downloads

hope this helps!!

BIG IDEAS MATH
Course 3: CA > Chapter 7: Approximating Square Roots > Section Exercises 7.4 > Exercise 16
Classify the real number shown below.
V15
Choose all that apply.
-irrational
-rational
-integer
-whole
-natural

Answers

I think it's only "Itrrational"

The width of a rectangular room is 80% of its length. If the length of the room is 20 meters, what is the area of the room? A= length x width

Answers

Answer:320ft^2

Step-by-step explanation:

80% of 20 is 16, because 80% is 4/5 and 20 divided by 5 is 4, multiplied by 4 is 16. Area is L x W, so 16 times 20 is 320, and don't forget unit of measurement, ft^2 for area

A=320^2!
Length x width = area

Your mother has a new cell phone. It comes with 18 applications already installed. She uses only "2" /"3" of those applications. She downloaded an additional 12 applications that she uses regularly. Write an equation to represent the total number of applications your mom uses.

Answers

Answer:

its 2/3(18) + 12 = 24

Step-by-step explanation:

Answer:

2/3(18) + 12 = 24 total applications she uses

Step-by-step explanation:

Explain why is [tex]5w^2 +8w[/tex] when it says plus 8 times the width of the pen?

Answers

Answer:

it says its 5 more than 8 times the width

Step-by-step explanation:

8 times the width would be 8w then 5 times more of that would be 5w squared

PLEASE HELP NO TROLLS
5. Find the measure of angle A. *

Answers

30 degrees. A triangle is 180. The right angle is 90.
90=7x-10+3x
add ten to both sides and combine like terms
100=10x simplify
10=x now substitute
3x
3(10)=30

Help- its about multiplying fractions
Ahahahaha im finna fail

Answers

Answer:

A= 2/6   B=3/5   C=12/8

Step-by-step explanation:

every number is a fraction so take the #5 for example, 5= 5/1.then multiply by the given fraction. easy

For number one, a is 2/6 but can be simplified to 1/3 by dividing the denominator and numerator by 2. B is 3/5 and c is 12/8 but we have to turn that improper fraction into a mixed fraction so it becomes 1 4/8 which simplified is 1 1/2

How do you solve this? pls show work/steps


solve for all values of x: [tex]3x^{2} + 14x = 5[/tex]

Answers

Answer:

Step-by-step explanation:

3x²+14x-5=0

3x²+15x-x-5=0

3x(x+5)-(x+5)=0

(x+5)(3x-1)=0

either x+5=0,x=-5

or 3x-1=0

x=1/3

Help please.................

Answers

Answer:

C,B

Step-by-step explanation:

Answer:

B and C but read the explanation.

Step-by-step explanation:

It is B and C because you can check both explanations but A might be correct but the ratio is 5:3 not three to 5 so I think it isn't correct.

Graph y=x−2, could someone help?

Answers

like the other answer said. desmos all the way
Y=x-2
So go to y axis and put a dot of -2
Then go up once and go right once
You’ll get a positive graph

PLZ PLZ ANSWER THIS !!!!!!!!!!!!!!!

Answers

Answer:

7 units horizontal

Step-by-step explanation:

plz mark me as brainliest

The shipping fee to send a package via US Priority Mail costs $6 per pound and includes a $5 insurance fee. If an equation is written to calculate the shipping charge, what is the slope?

a) 6

b) 6/5

c) 5

d) 5/6

Answers

The answer is b! For the question

1. What is the ratio of circles to all shapes? im failing math rn so uh yeah can someone help​

Answers

Answer:

2:9

Step-by-step explanation:

there's 9 shapes total and 2 of them are circles

2/9 is the answer :)))))))))

[tex]\frac{3}{4}n[/tex] + 1 < 10
solve the inequality

Answers

Multiply to remove the fraction, then set equal to 0 and solve. Which will then get you to your answer n<12

Solve for x in the diagram below.

Answers

Answer:

X=157.5

Step-by-step explanation:

Not sure this is correct but, what i did was 365-45=315/2=15.7

I dearly hopes this helps you out...

X = 157.5 should be your answer

Plsssssssss Help!!!
What is the distance between points A(-3,4) and B(1,-2)? Round to the nearest 10th if necessary.

A. 6.08
B. 6.1
C. 6.5
D. 7.2

Answers

Answer:

D. 7.2

Step-by-step explanation:

6^2 +4^2 = c^2

sqrt 36 + sqrt 16 = c^2

c^2 = sqrt 52  =  7.21110255 = 7.2

Answer:

Step-by-step explanation:

Step-by-step explanation:

Distance between two points is given by

|xy|=√(x2-x1)² +(y2-y1)²

So putting the points A(-3,4) B(1,-2) into the equation

|AB|= √(4--3)²+(-2-1)²

=√(7)²+(-3)²

= √49+9

= √58

=7.2

The area of the picture is 100 square inches. The length is 4 times the width. Find the length and width of the picture.

Answers

Answer:

The length is 20 inches and the width is 5 inches!

Step-by-step explanation:

The length is 20 inches and width is 5

HOW DO YOU FIND THE MISSING SIDE LENGTH ON SIMILAR TRIANGLES!!! PLEASE HELP...

Answers

Answer:

Do What He or She Said .................. maybe you will find ur answer

Step-by-step explanation:

Help is needed thanks

Answers

240 games are played

( basic geometry) This is easy I just want to make sure my answer is right. part 3

Answers

Answer:

B

Step-by-step explanation:

B if you subtract both numbers from 180 you will get 35 and similar triangles have the same angle measures. so they are 80 65 and 35

I believe that the answer to this problem would be B

1b. $1 6​− 1 3​ Lin said the value of this expression is $ 1 6​. Is she correct? Explain or show your reasoning to prove your answer

Answers

Answer:

No she is not correct

Step-by-step explanation:

She is not correct because “value of expressions” mean the result which for this it is 16-13 =3 and she is wrong. please mark me brainly! Hope this helps! :D

Feng needs to build a rectangular shipping box with a volume of 9 cubic feet. He has two pieces of plywood that measure 2 feet wide and 3 feet long to serve as the bases of the box. How tall must Feng make the box?

Answers

Answer:

54 feet

Step-by-step explanation:

9x3x2=54

Answer:

1.5 feet

Step-by-step explanation:

The box needs to have a volume of 9 cubic feet.

Volume is l*w*h.

We know the width is 2 ft and the length is 3 ft.

2*3*h=9

6*h=9

Divide by 6

h=9/6

h=1.5

HELP!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

Answers

Answer:

-10x+3/2 and -2(5x)+(-2)(-3/4)

What is the area of this figure?

Select from the drop-down menu to correctly complete the statement.

56
90
146
216

Answers

answer is:146
we got a rectangle that’s 40 (4x10)
2 triangles that r 25 so 50 (2[5x10/2])
then the bottom triangle that’s 56
that’s how i did it. add them up and then
146.
Answer is 146. The side is 18cm and the 14 I'm solve for total area by multiplying.

what is the value of x?

Answers

Answer
42

Because that angle is 90 degrees so 90-48-42
Other Questions
please urgent please help 15x120 helppp what is this and how do u get the answer A) Suppose you separate a 3.02 g mixture of sand and salt. You recover 1.43 g of salt and 1.41 g of sand. What is the percent recovery of the mixture?B) Suppose you separate a 3.02 g mixture of sand and salt. You recover 1.43 g of salt and 1.41 g of sand. What is the percent recovery of the mixture?C) Calculate the percent by mass of a solution made from 15 g NaCl (the solute) and 69 g water.D) What percent of 73.0 g is 26.1 g? HELPPPPP I WILL GIVE U THE BRAINLEST!!!!What is the diameter, if the circumference is 24? Round all answers to the nearesthundredth. How to write a letter to the chairman of your local government telling him to profer solution to the deplorable situation in your community What is used to document incoming 911 calls by the police?Your own words Amanda must read a 259page book for her history class over the next week. Amanda has found that she can read 37 pages in a hour. Complete the table, select the appropriate graph, and enter an equation to represent the number of pages that Amanda has left to read with relation to time. Use variable x for hours. Given the triangle information below solve for the x value and the measure in degrees of angle a Suppose that J and K are points on the number line. If Jk=5 and J lies at -12 where could K be located? Suppose consumers buy 50 million packs of cigarettes per month at a price of $5 per pack. If a $1 tax is added to thatprice, By what percentage does the price change If 13% is lost by selling goods for Rs 1475, what would be the loss or gain if the goods are sold for Rs 1615? Tony made a scale drawing of his living room. The scale drawing has a length of 5 inches and a width of 3 inches. If the living room has an actual length of 12 feet, which equation could be used to determine w, the width of the living room? Sketch the graph of each linear inequality LAST QUESTION!!! ANSWER THIS QUESTION PLZZZZ 10Arabic is the most widespread language in Southwest Asia.TrueO False In LMN, the measure of N=90, MN = 5.6 feet, and NL = 1.7 feet. Find the measure of M to the nearest tenth of a degree What kinds of stories do you find it easiest to believe? What kinds of stories doyou find it hardest to accept as true? What are the main differences between thestories you believe without question and those you doubt? Which major religions started in the Arabian peninsula? Dom runs a pizza business. Last year he took in $88 000 and it cost him $33 000to run. What is his percentage profit for the year? Round to the nearest cent. Sawyer Industries began business at the start of the current year. The company planned to produce 25,000 units, and actual production conformed to expectations. Sales totaled 22,000 units at $30 each. Costs incurred were: Variable manufacturing overhead per unit $ 8 Fixed manufacturing overhead 150,000 Variable selling and administrative cost per unit 2 Fixed selling and administrative cost 100,000 If there were no variances, the company's absorption-costing income would be: