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

What is the value of the expression below when x = 16?



2x + 15

Answers

Answer: 47

Step-by-step explanation:

Find the value of x. 10x° 30°
A.6
B.9
C.15
D.3

Answers

Answer:

d

Step-by-step explanation:

its just d

brainliest brainliest brainliest help me for ut

Answers

Answer:

A

Step-by-step explanation:

sgryjtyjtyjtsyjtdj

Answer:

A

Step-by-step explanation:

please give me brainliest thanks :)

HELP PLSSSSSSSSSSSSSSSSSSSSSSSSSSSSSS

Answers

Answer:

1. 8     2. 7    3. 20

Step-by-step explanation:

Each student’s unique identification number is paired with his or her grade level.

A:No, because not all students will have an identification number.

B:Not enough information is given.

C:No, because more than one student will be paired with the same grade level.

D:Yes, because each student’s identification number is unique and will be paired with just one grade level.

Answers

Answer:

B

Step-by-step explanation: We dont have enough info to answer this question

i think the answer is b. not enough information is given

Kelly simplified this power of a product.

(7w–9)–3

1. 7–3∙(w–9)–3

2. 1
343
w27

Use Kelly’s steps to simplify this expression.

(5w7)2

What is the simplified power of the product?
A) 5w9
B) 10w14
C) 25w9
D) 25w14

Answers

Answer:

I think it's D

Step-by-step explanation:

Ayee.ee we use the same site, edgenu.ity right?

Answer:

D

Step-by-step explanation:

Good Luck

Pls help me with this!

Answers

C because alligator eat him

1. Find the greatest common factor of the set of numbers
27, 36, 72
20, 15, 100

Answers

Answer:

3

Step-by-step explanation:

The answer would be 3

Plz answer this question ASAP

Answers

V=l*w*h
5*5*5=125
3*4*18=216
125+216=341

Please help! I need to tell whether x and y are in a proportional relationship and I need to write an equation that represents the relationship if it’s proportional.

Answers

Answer:

Well the only thing I have for you is that, yes the relationship is proportional because the line is passing through the origin.

Proportional relationship

Help I don't wanna get a bad grade

Answers

Answer:

The answer would be B)

Step-by-step explanation:

Answer:

B

Step-by-step explanation:

12.7x+69.6 ≤ 603

Subtract 69.6 from both sides of the equation

12.7x ≤ 533.4

Now divide both sides by 12.7. Since this is not a negative number, do not flip the sign.

x ≤ 42

Now graph the equation. Now since this is a less than or equal to sign, there will be a closed circle. put a dot where there is a 42, then put an arrow going to the left to represent that x is less than or equal to 42.

You can see this description in option B.

Help me please ASAP please help

Answers

Answer:

the volume is 15.7 in. 3............

05.06 LC)

The net of a solid figure is shown below:

Which calculation will give the total surface area of the solid figure?

5 × 6 × 6 square inches
6 × 5 × 5 square inches
6 × 5 × 5 × 5 square inches
5 × 6 × 6 × 6 square inches

Answers

Answer:

B second option

Step-by-step explanation:

shape is cube, surface area is area of all six sides, to find one side, 5x5, for six sides x6, 5x5x6

Answer:

the correct calculation of the surface area is  6 x 5 x 5 x 5 square inches  

hopefully its correct :)))))))

Step-by-step explanation:

The dashed lines show a part of the garden that is in the shape of a square. What is the area, in square feet, of the entire garden? Show your work or explain your answer.

Answers

Answer:

40 square ft

Step-by-step explanation:

If its a square than 20 times 20 equals 40

h/4 = 9 what is the value of h?

Answers

Answer:

h = 36

Step-by-step explanation:

h/4 = 9

Isolate h by moving 4 to the other side

To do this multiply by 4 on both sides

h/4 * 4 = 9 * 4

Simplify

h = 36

Crosscheck by substituting

36/4 = 9

Solve the system by adding. Drag and drop numbers into the coordinates to complete the ordered pair.
4x + 3y = −17
x − 3y = −23


The solution of the system is (_____,_____).

HELPPPP

Answers

( -8 , 5 ) is the answer
The solution is (-8,5)! Hope that helps. Have a great day!

Please help! Could you answer all!?

Answers

Answer:

1.) 48

2.) 65

3.) 36

Step-by-step explanation:

1.)     If the equation is 6(x-4) and x = 12, then all we have to do is plug in the value of x. When we plug in, all we do is substitute 12 for x because they mentioned in the question that x = 12. So, we end up getting 6(12 - 4). After solving this, we get 48.

2.)     This problem is a lot like the last problem. All we need to do is substitute /plug in the values of x and y into the equation, to get 4(4^2) - 35/7 - (8 + 14). After solving, we get 65.

3.) .     This problem, once again, is also a lot like the last problems. We need to substitute the value of x into the equation 8x+12. Since we know from the problem that x is 3, all we have to do is 8 * 3 + 12.

My answer was wrong oops.

Graph each question
y = 2x + 0.5
y = 0.5x + 1

Answers

Answer:

y = 1.5

y = 4.5

Step-by-step explanation:

Y=1.5.
Y=4.5
Hope I helpppp!

I need this answered, but it's not very urgent.
[tex]\ -x + \sqrt 1 − x 2 \- =\sqrt 2( 2 x 2 − 1 )[/tex]

Answers

The final answer for that equation is x= 0
I hate that you got a zero :(

The cash register deducts $2.50 from a $25 Coffee Café gift card for every medium coffee the customer buys. An equation is written to calculate the total amount on the gift card. What is the meaning of the y-intercept in the equation?
a) The change in the amount of money spent
b) The ending value on the gift card
c) The amount of money spent each visit
d) The initial value of the gift card

Answers

Answer: b

Step-by-step explanation:

On a graph the amount on the card would go down based on the x intercept, the deduction from the register

Answer:

It is B!!

Step-by-step explanation:

A sphere and a cylinder have the same radius and height. The volume of the cylinder is 21 m?.

What is the volume of the sphere?
6m squared
7 m squared
14 m squared
28 m squared

Answers

Answer:

C

Step-by-step explanation:

Brainliest?

sphere volume 14m squared

Please help you don’t need to show your work if you don’t want to!!

Answers

Answer:

True

Step-by-step explanation:

Please help! I need to tell whether x and y are in a proportional relationship and I need to write an equation that represents the relationship if it’s proportional.

Answers

Answer:

vfaafdavas

Step-by-step explanation:

-3z-1=7 what does z equal

Answers

Answer:

-8/3 or -2 2/3

Step-by-step explanation:

Answer:

z = -2 I'm sorry if I'm wrong but it's the answer I got

A store offers a 20% discount on a hat. The discount price is $18. What is the regular price of the hat?

Answers

If I did my answer correct, I believe that the regular price is $22.50.

I hope that helps !! ~(^v^)~
I believe it’s $14.40

Which expression is the same as 5÷4?

Answers

Answer:

1.25x4=5

and then when you divide it :

5 divided by 4 is 1.25.

Step-by-step explanation:

and then when you divide it :

5 divided by 4 is 1.25.

Answer:

juvvecthtxdfrg

Step-by-step explanation:rujfioddfijs4jdfrdoj thanks for the point s <3 this is karma for doing this to everyone else

Find the area of the shaded region. Do not label your answer. Round your answer to the nearest tenth.

Answers

Answer:

10.36. almost 10

Step-by-step explanation:

shadded area = triangle area - circle area

10.36 so about 10 I’m pretty sure

i rlly need this pls/ two questions

Answers

Answer:

73

Step-by-step explanation:

7^2 = 49

Order of operations, parenthesis first.

3*4 = 12

5*12 = 60

49+60 = 109

6^2 = 36

109-36 = 73

Answer:

1.) 73

2.) x+x+x+y+y = 2y + 3x

2(x+2y) = 2x + 4y

x+x+y+y = 2x + 2y

Step-by-step explanation:

SOMEONE HELP ME FINISH PLEASE DUE TODAY

Answers

17 is f I know that much
all i know is this lol

Rob is saving to buy a new MP3 player. For every $16 he earns babysitting, he saves $9. On Saturday, Rob earned $96 babysitting. How much money did he save?

Answers

Answer:

91

Step-by-step explanation:

Answer:

91

Step-by-step explanation:

brainliest plz

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