Mathematics Middle School

PLEASE HELP THIS IS DUE AT 11:59!!!
1. Which is an example of the associative property?

A. x + 5 = 5 + x
B. (x + 3) + 7 = x + (3 + 7)
C. 3 • (x + 5) = 3 • x + 15
D. If x = a, and a = 7, then x = 7.

2. Which is an example of the distributive property?
9 • (t + 5) = 9t + 45
9 • (t + 5) = (t + 5) • 9
9 • (t + 5) = (9 • t) + 5
9 • (t + 5) = 9t + 5

3. Identify the property shown
transitive
associative
commutative
distributive

4. Which property justifies this statement?
2 + (8 + 9) = (2 + 8) + 9
transitive
commutative
distributive
associative
..........................................................................
5. Which property is shown?
–7 + 0 = –7
A. distributive property
B. associative property of multiplication
C. commutative property of addition
D. identity property of addition

Answers

Answer 1

Answer:

do you still need help?

Step-by-step explanation:

Related Questions

Pls I need help I don’t know

Answers

Answer:

FIRST U SHOULD TRY GOOGLING OR ASKING THE TEACHER FOR HELP<3

Step-by-step explanation:

Answer:

wow hard math much

Step-by-step explanation:

15 points!! Will give brainliest for smartest answer!

Answers

Answer:

120

Step-by-step explanation:

since she is trying to keep it under 40 each month and there is a flat fee of 34$ she will have 6$ left then you just have to divide so you will do 6/0.05

120 is awnser ahhahshsbxnndnxnx

Classify this number

-7?

Answers

Answer:

whole number (maybe)............

Answer:

That is a integer, and rational number

Step-by-step explanation:

It has a negative it cannot be a WHOLE NUMBER

please help me!!! It's due in a hour and I have slot on my plate!!
Write the integer that best represents the situations described.

1. A building is 35 stories tall. 1. _______________________

2. Hikers descended about 270 feet. 2. _______________________

3. Bob owes his sister $12. 3. _______________________

4. The temperature rose 19°. 4. _______________________

5. The city is 15 feet below sea level. 5. _______________________

6. You deposit $25 in your bank account. 6. _______________________

Answers

Answer:

1:+35

2:-270

3:-12

4+19

5:-15

6:-25

Step-by-step explanation:

1. 35 , positive

2. -270

3. -$12

4. 19 degrees, positive

5. $25, positive

I think this was what you were asking lol

PLS HELP ME I WILL MARK BRANILEST!!!

Answers

Go ahead and mark him brainliest, he got it first

Answer:

bac

Step-by-step explanation:

got banned lel

please help me on this

Answers

Answer: 9m+18

Step-by-step explanation:

Distribute

Answer: 9m+18

Explanation: 9(m+2) = 9 x M is 9m and 9 x 2 is 18. So the answer is 9m+18

helppppppppppppppppppppp

Answers

Answer: d the last one

Step-by-step explanation:

Answer:

1 , 3,4

Step-by-step explanation:

We can multiply both by 8

So, 8x and -24

So its correct

2We multiply 8 by both

So, we have 8x-192

So, no

FIrst, we can do 9 and apply it to both x and -3

So, 9x-27-x+3

So, 8x-24

SO, yes

5+3*x = 8x

So, 8x-24

So yes

PLEASE HELP Find the percent of change. Round your answer to the nearest tenth of a percent, if necessary.

Original price: $185

New price: $160

Original number of students: 56

New number of students: 77

Answers

1.) 14.62%
2.) 28.28
Hope this helps!

1. 14.60%
2. 28.28
I think that is right

If it's not too much of a bother can someone answer this? Thank you =v=

Answers

Answer:

(2, 6)

Step-by-step explanation:

(2, 6)

the answer should be 1, (2, 6). i hope this helps!

HELP IS THIS CORRECT?

Answers

Ehehehdhehehebebbrrbdbd

please help me i have 1 more after this

Answers

Answer:

Step-by-step explanation:

24 -:- 3+3

8+3

Answer:

Step-by-step explanation:

What is the answer to the word problem?

Answers

$6.50

5x0.75 = 3.75
8.75 (the total cost) - 3.75 = 4.25 (price of burger)
0.75x3 (three toppings, bacon, onion, cheese) = 2.25
4.25+2.25 = $6.50 total

Answer:

7.25

Step-by-step explanation:

8.75-(5x0.75)=5

5+(3x0.75)=7.25

Hope this helps

-TheMightyEmu

Select all the expressions that are solutions to 5= (2/3)x.

5\div÷2/3

10/3

5/2/3

5\bullet∙2/3

Answers

Answer: 5\div÷2/3

5/2/3

and another is 15 over 2 if thats on your thing

what is 5/8 as a decimal please give explanation
WILL GIVE CROWN

Answers

Answer:

One eighth is equal to 0.125. Four eighths is equal to one half, or 0.5. So five eighths is 0.5 + 0.125, which equals 0.625.

Answer:

0.625

Step-by-step explanation:

1/8 as a decimal is 0.125

to find 5/8 you multiply .125 times 5 which gives you 0.625. Hope this helps!

Can you help me with my math

Answers

1.domain={1,3,6} range={2,5,8} yes it is a function
2.domain={3,2} range={7,13} no it’s is not a function
3.domain={0,2,4} range={-1,1,3,5} no it is not a function
4. 0 ride=$0 1ride=$3 2ride=$6 3ride=$9 4ride=$12 5ride=$15
Yes it is a function
(If you want me to explain I can)

Hope this helps

Have a great day/night

PLZ HELPPPPPPP THE QUESTION IS IN THE PIC

Answers

Answer:

Step-by-step explanation:

Meg laid 15 tiles in 50 minutes.
Jessica worked for 85 minutes at a faster rate per tile than Meg.
Choose all the rates that could be Jessica’s rate.

20 tiles in 85 minutes

24 tiles in 85 minutes

28 tiles in 85 minutes

1 tile in 3 minutes

1 tile in 4 minutes

Answers

1 tile in 4 minutes

pls answer if you know it

Answers

Answer:

v<-20

Step-by-step explanation:

We can treat this as an equation and subtract 25 from both sides:

v<-20

Write an algebraic expression for the following: twice a number *
4 - 5n
2x
5n - 4
2 + 5 x h

Answers

2x ! the number would be x and 2x is 2 times x!

Answer:

Step-by-step explanation:

1. when a number and a variable are right beside eachother it means that you would multiply them. the equation 2x is the same as 2•x but is simplified to 2x

1. What unit would you use to measure the distance from the front door of your apartment or house to your room?
a. centimeters
b. meters
c. millimeters
d. kilometers

____________________________________________________________________
2. If you want to find the mass of a very light object, what unit would you use?

b. milligrams
a. grams
c. kilograms

Answers

Answer:

1. meters 2. milligrams

Step-by-step explanation:

Answer:

i think meters and the second one u would use milligrams

Step-by-step explanation:

What is the range of the following numbers?
12,20,18,25,6

Answers

Answer:

The difference between the highest and the lowest which is

25_6=19

Step-by-step explanation:

Answer:

The range is 19.

Step-by-step explanation:

You subtract the highest number and the lowest. And those two numbers are 25 and 6!

25-6=19

On a large baking tray, 40 cookies can be baked together. To bake 40 cookies it takes 14 minutes, for baking 80 cookies it takes 28 minutes, for baking 100 cookies it takes 42 minutes. How much time will it take to bake 140 cookies?

A-49 B-56 C-57 D48

Answers

the answer is B (56) because it states that it takes 14 minutes to bake 40 cookies, and you already have 100 cookies so you would just add the time it took to bake 40 cookies which would be 42+14=56

which expression is equivalent to 6(x+2y)+3+4y+5

Answers

Answer:

6x+16y+8

Step-by-step explanation:

In order to solve this problem,

6(x+2y)+3+4y+5

We would first need to expand the brackets

6x + 12y + 3 + 4y + 5

Collect like terms together.

6x+12y+4y+3+5

Add the like terms

6x+16y+8

Therefore, the expression which is equivalent to 6(x+2y)+3+4y+5 is 6x+16y+8

Answer:

6x+16y+8

Step-by-step explanation:

m a t h

30 POINTS <3

If you roll a die what is the probability of getting a 2 or 6?

1/3
1/4
1/6
2/3

Answers

Answer:1/6

Step-by-step explanation:

Charlene’s dress cost $270. Three days later, it went on sale for 35% off. How much could she have saved if she waited three days?

Answers

Answer:

94.5 dollars

Step-by-step explanation:

Answer:

94.50$

Step-by-step explanation:

270 / 20 = 13.50

13.50 x 7 = 94.50

Hope this helps!

Consider the following quadratic equation. f(x) = 9x^2
Part A: Write a function, g(x), the shifts f(x) down by 3 units.
Part B: Write a function, h(x), that vertically stretches f(x) by 6 units.
Part C: Write a function, m(x), that reflects f(x) about the x-axis.

Answers

Answer:

[tex]g(x) = 9x^{2} -3[/tex][tex]h(x) = 54x^{2}[/tex][tex]m(x) = -9x^{2}[/tex]

Explanation:

[tex]f(x) = a(x-h)^{2} + k[/tex]

Determines direction.Negative x reflects over x-axis.a < 1 --> vertically shrunk.a > 1 --> vertically streched.

Determines left and right.Sign of h flips...(x + h) goes left.(x - h) goes right.

Determines up and down.

i need help im bad at math

Answers

Answer:

The first box: 1.2 the second box: 20.4

Step-by-step explanation:

Can be simplified to 6 gallons and 5 seconds, then divide those two. After that, 1.2*17

1.2 20.4 hope that helped

Hey! can you guys please solve all correctly? i need them asap btw, thanks! (I will give brainliest and 15 points)

Answers

The answer should be D because whenever x is bigger than 5 then the left side would be bigger than 2.

A basketball has a mass of 1 kg and is traveling 12 m/s.

What would happen to the velocity if the momentum of the basketball were cut in half?

Answers

Answer:

[tex]6\:\mathrm{m/s}[/tex] (The velocity would also be halved)

Step-by-step explanation:

The momentum of an object is given as [tex]p=mv[/tex] where [tex]m[/tex] is the mass of the object and [tex]v[/tex] is the velocity of the object.

Because mass is constant, if the momentum ([tex]p[/tex]) was cut in half, the velocity of the basketball would also be halved:

Let [tex]p_1[/tex] be the initial momentum and [tex]p_2[/tex] be the final momentum:

[tex]\frac{1}{2}p_1=p_2,\\\frac{1}{2}mv_1=mv_2, \\\fbox{$\frac{1}{2}v_1=v_2$}[/tex]

Therefore, the basketball's new velocity is [tex]\frac{1}{2}\cdot 12=\fbox{$6\:\mathrm{m/s}$}[/tex].

a basketball has a mass of 1kg and is traveling 12 m/s
6 m/s

Please help!!! Need it now or my mom will kill me. I have a ton of missing assingments.

Answers

The correct answer is m=88

Answer: M=88

Step-by-step explanation:

Assume M/8 is X

x+8=19

X=11+8

So M/8= 11

8*11

= 88

M=88

Btw brain is a tool and if You have missing assignments, You should make up for them and actually learn. If not, It’s useless

Not to be Nosy or anything

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