Mathematics Middle School

Complete the following to show how the expression can be simplified using the Commutative and Associative Properties of Multiplication.

Enter the correct numbers in the boxes.

(−0.5)(−7)(2)= ( )( )(2)
=(−7)[( )( )]
=(−7)( )
=

Answers

Answer 1

Answer:

[tex](-0.5)(-7)(2)= (-7 )(-0.5 )(2)\\=(-7)[( -0.5)(2 )]\\=(-7)( -1)\\=7[/tex]

Step-by-step explanation:

[tex](-0.5)(-7)(2)= (-7 )(-0.5 )(2)[/tex] Here you apply the commutative law ([tex]ab = ba[/tex]).

[tex](-7)[( -0.5)(2 )][/tex] Here apply the associative law ([tex]a(bc) = (ab)c[/tex]).

[tex](-7)( -1) = 7[/tex] A negative number by a negative number is equal to positive.

Answer 2
(-0.5)(-7)(2)= (-7)(-0.5)(2)
=(-7)[(-0.5)(2)]
=(-7)(-1)
=-7

Related Questions

if I only have 1/3 cup of oil but i need 1/2 cup how much more oil do i need?

Answers

Answer:

you would need 1/6 more of oil

Step-by-step explanation:

You would need 1/6 cup of oil

Help please and I will give brainliest

Answers

I think it’s b
Sorry if I’m wrong!
Answer: D
the domain is repeating

solve thisssss if ur so smart

Answers

Answer:

In first one just shift the graph 2 units right

and in second one shift the graph 1 unit upward

i need the points so soryr

12∙(40-39)+2

A. 18

B. 14

C. 24

D. 30

Answers

Answer:

B.14

Step-by-step explanation:

Answer:

B. 14

Step-by-step explanation:

(40-39)= 1

12*1+2=14

1) Write an equation that can be used to solve for the missing angles. (5pts)

2) Then Solve the equation for find the value of X. (Make sure to explain or show all the steps to get full Credit)

Answers

I don’t know how I should find the missing angles. But I can solve for X. So first we need to combine like terms so we add 2x, x and x which gives us 4x. And we set up our problem like this: 4x + 24=180. So we then subtract 24 from 180 and get 156 then divide 4x and 156, which leaves us with x=39

Out of the 50 students in Mrs. Green's class, 4 have a pet. What percent of the students in Mrs. Green's class have a pet?


The percent of students in Mrs. Green's class that have a pet is what%.

Answers

Answer:

8%

Step-by-step explanation:

50÷100 = 0.5

0.5×2 = 1

1 student = 2%

2%×4=8%

Answer:

8%

create a proportion:

4/50 = x/100

4(100) = 50(x)

400=50x

8 = x

last year, there were m pies baked for the bake sale. This year, there were 124 pies baked. Using m , write an expression for the total number of pies baked in the two years.

Answers

Answer:

→ Last year, there were m pies baked for the bake sale. This year, there were 215 pies baked. Using m , write an expression for the total number of pies baked in the two years.

Step-by-step explanation:  

▶ Given :-

→ Last year, number of pies baked for bake sale = m.

→ This year, number of pies baked for bake sale = 215 .

▶ To find :-

→ The equation that represents the total number of pies baked for bake sale .

▶ Solution :-

→ Let the total number of pies baked for bake sale in two years be ‘x’ .

And, last year no. of pies baked = m [ given ] .

Therefore, the equation that represents the total number of pies baked for bake sale :-

→ x = m + 215 .

✔✔ Hence, it is solved ✅✅.

All you need to do is 124 divided by 2 and your answer is /equal to (m)

Find the sum.

−57+90

Answers

Answer:

[tex] - 57 + 90 \\ = > 33[/tex]

Hope helpful <3

The sum of 5.5 and twice a number is -10
What is the number?

n = 7.75

n=2.125

n= -7.75

n=-2.125

Answers

The answer is n= 7.75.

Answer:

n=-7.75

Step-by-step explanation:

Based on the given conditions, formulate: 5.5+2×X=-10

Rearrange unknown terms to the left side of the equation:2x=-10-5.5

Calculate the sum or difference:2x=-15.5

Divide both sides of the equation by the coefficient of variable:x=-15.5/2

Multiply both the numerator and denominator with the same integer:-155/20

Cross out the common factor:-31/4

get the result:  -7.75

Answer: -7.75

Sammy runs 100 meters in 15.03 seconds.
a. If Sammy runs at a constant speed, how far does he run in one second? Round to the nearest tenth.

b.What are you doing when you divide decimal numbers (divisor and dividend changes)

c.Place a decimal point in the divisor and decimal to create a new problem with the same answer as (a)

Answers

Answer:

A. Is 7

Step-by-step explanation:

I think A is 6.7, sorry if I’m wrong

a three whole digit number it is divisible by 4 it is divisible by 5 it is divisible by 11 it is divisible by 3 it is divisible by 10 it is divisible by 6 it is not divisible by 9 it is not divisible by 8 it is not divisible by 7

Answers

Answer:

:)

Step-by-step explanation:

Tha answer is 660, every digit goes into it!

Which equation has a solution of t = 1/4

Answers

Answer:

2t = 1 / 2

Step-by-step explanation:

2t = 1 / 2

t = 1 / ( 2 x 2 )

t = 1 / 4

Answer:

C. 2t = 1/2

Step-by-step explanation:

A. 2 1/4 + (1/4) = 4

9/4 + 1/4 = 4

10/4 = 4

2 1/2 = 4 X

B. 4(1/4) = 16

1 = 16 X

C. 2(1/4) = 1/2

1/2 = 1/2

D. (1/4) - 1 = 3/4

-3/4 = 3/4 X

Help me out pleaseeeee. I will give brainliest!

Answers

Answer:

C

Step-by-step explanation:

The answer to your question would be C!

Please help and I will give brainliest if CORRECT

Answers

Answer:

It might be a

Step-by-step explanation:

13.5 x 3 = 40.50, and has i multiplied the rest it gave me higher numbers but it was close to the amount of total money

slope assignment help eigth grade

Answers

the answer is graph a
Graph A is the answer

What is the value of the expression ((9-5)2 - 1 ) divided by 3?

Answers

Answer:

5

Step-by-step explanation:

((9-5)² - 1 ) ÷ 3 =(4² - 1) ÷ 3 = (16 - 1) ÷ 3 = 15 ÷ 3 = 5

Answer:

[(9 - 5)^2 - 1] / 3

[4^2 - 1] / 3

[16 - 1] / 3

15 / 3

= 5

Using subsitution, which value of x makes this equation true?

Answers

Answer:

x = 3/5

Step-by-step explanation:

After substituting each option into the equation, we find that the only option that makes the equation true is x=3/5, since 4/5 - 3/5 = 1/5.

3/5, simple subtraction and substition .

What is the solution to this equation?

−1/5 (x + 1 3/4) = −2 1/2


x = 21 1/4

x = 14 1/4

x = 10 3/4

x = 3 3/4

Answers

X= 10 3/4 is the correct answer

PLEASE HELLP 100 POINTS ARE AVAILABALE

Answers

Answer:

A

Step-by-step explanation:

4 (0.5x + 2.5y - 0.7x - 1.3y + 4)  

Use commutative property with like terms 4( 0.5 x - 0.7x + 2.5y - 1.3 y + 4)

Combine like terms 4 (-0.2x + 1.2y + 4)

Use distributive property -0.8x + 4.2y + 16

Cecil the acrobat has a new tight rope routine where he walks to the right 14 feet, performs a 5-foot
backflip twice in a row, and cartwheels forward 8 feet. Where does Cecil’s routine end?

Answers

I think the correct answer is 32 because if you add them together that’s 32
14-5(2)+8
14-10+8
4+8
12 feet

ASAP!!! A proportional relationship is shown in the table below. X: 0 0.3 0.6 0.9 1.2 Y: 0 1 2 3 4 What is the slope of the line that represents this relationship? Graph the line that represents this relationship.

Answers

The slope is 3/10, and just graph 2 points ( so like .3,1 and .9,2) and just use Desmos to figure out the line using the y=3/10x+3.64 and just type it in
the slope is 0 if it goes across

need help with eighth grade function assignment

Answers

i believe it’s c !!!
I think its c but possibly b

Help pls I’m giving brainlyest

Answers

Answer:

a

Step-by-step explanation:

A

I have an explanation but it is hard to explain over text! I promise you its that i think

Please help, I’m actually confused on this one lol

Answers

Answer:

Hmmm this is tricky maybe ask your teacher for help

Step-by-step explanation:

[tex]\text{I think it is} ~ y = \dfrac{10}3= 3 \dfrac 13 \text{ when x =10 because the relation is}~ y = \dfrac{x}3[/tex]

hey you can help me help pls

Answers

Answer:

[tex]2\frac{4}{5}[/tex]

Step-by-step explanation:

Rewriting our equation with parts separated

[tex]=9+\frac{1}{5} -6-\frac{2}{5}[/tex]

Solving the whole number parts

[tex]9-6=3[/tex]

Solving the fraction parts

[tex]\frac{1}{5} -\frac{2}{5} =-\frac{1}{5}[/tex]

Combining the whole and fraction parts

[tex]3-\frac{1}{5}=2\frac{4}{5}[/tex]

3 8/7 your welcome lol I learn this in 8th grade long time ago

don't add links please.

Answers

Answer:

C I think or A but it's not b or d for sure but go for C

Johns was farther and faster
5*50=250+25= 275 while 5*50=250+30=280

Solve 2.2x7 and explain how you got it

And ls do not put files in the answer place pls if you know the answer place it here on brainly.
And do not just say : ajdjsfhsuhu how fkg you kfns PLS DO NOT do that.

Answers

It is 15.4 I solved it

Answer:

15.4

Step-by-step explanation:

What i did was i did it in standard form. But, what i did was the 7 x 2 which is 14 then carried the 1 to the ones place. Then, i did 7x2 + 1 to get 15. Then, i did 0 x 2 and 2 x 0 to get 0, then i added and moved the decimal from 2.2 one time to make it 15.4. To check my work, i did 15.4 divided by 7 to get 2.2.

Heres the work:

   1  

     2.2

 x   07

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

     154

+   000

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

     15.4

Which proportion can be used to find 220% of 318?

Answers

First times 318 by 2 because we need to find 200% then divide 318 by 5 which will be 20% and then add the 200% answer to the 20% answer :)

times 318 by 2 because we need to find 200% then divide 318 by 5 which will be 20% there's your answer ;)

Step-by-step explanation:

Solve. −1.3=x−(−13.2) What is the solution to the equation? Enter your answer in the box.

Answers

Answer:

11.9

Step-by-step explanation:

Answer: x= -14.5

Hope this help

The function below represents the monthly power consumption for a turbine blade manufacturing factory, where f(x) is the total power consumption, in kW, and x is the number of turbine blades produced.

The total power consumed to produce 15 turbines is ___ kW.

If 7,830 kW of power are consumed, then ___ turbines would be manufactured.

Answers

um can u provide the function pls

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