Mathematics Middle School

Identify the property being demonstrated for each expression.

3 + (5 + 7) = (3 + 5) + 7

(3)[5(7)] = (3)[7(5)]

5 + 0 = 5

Answers

Answer 1

Answer:

3+5+7

?

=

3+5+7

15=15

True

Step-by-step explanation:

Answer 2
3+ 12 = 8 + 7


12— 5+7
8— 3+5

Related Questions

A 1-unit by 4-unit rectangle is shown below

Answers

Answer:

4

Step-by-step explanation:

You multiply the height times the width

The area of shaded rectangle is 8/3 square units.

To find the area of shaded rectangle.

What is rectangle?

A rectangle is a type of quadrilateral that has its parallel sides equal to each other and all the four vertices are equal to 90 degrees.

Given that:

length=4 units

width= 1-unit

The rectangle is subdivided into 3 parts parallely.so 1 units is unshaded and rest are shaded.

Area of rectangle =length*width

Area of bigger rectangle =length*width

                                       =4*1 square units

                                       =4 square units

width is subdivided into 3 parts .

so, 1/3,1/3,1/3 are the width.

Area of un shaded rectangle=length*width

                                                 =4*1/3 square units

                                                  =4/3 square units

so, Area of bigger rectangle=Area of un-shaded rectangle+ Area of shaded rectangle

4 =4/3+Area of shaded rectangle

Area of shaded rectangle=4-4/3

Area of shaded rectangle=12-4/3

Area of shaded rectangle=8/3 square units

Therefore, the area of shaded rectangle=8/3 square units.

Learn more about rectangle here:

https://brainly.com/question/18451885

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Which expression could be modeled using the diagram?
An area model has 4 shaded parts and 1 unshaded part. The shaded parts are labeled StartFraction 4 Over 5 EndFraction.
4 divided by one-fifth
4 divided by StartFraction 4 Over 5 EndFraction
StartFraction 4 Over 5 EndFraction divided by one-fifth
One-fifth divided by StartFraction 4 Over 5 EndFraction

Answers

Answer:

4 divided by one-fifth

Step-by-step explanation:

A trick with fractions is if you want to find the numerical value of the fraction divide the Numerator by the denominator and you will get a decimal value that is easier to work with, I hope this helps! ^<^

Answer:

4/5 divided by 1/5

Step-by-step explanation:

Write 4,682.56 in expanded form.
(4 x 1000) + (6 x 100) + (8 x 10) + (2 x 1) + (5 x 0.1) + (6 x 0.01)
(4 x 1000) + (6 x 100) + (8 x 10) + (2 x 1) + (5 x 1/10) + (6 x 1/100)
4000 + 600 + 80 + 2 + 0.5 + 0.06
all of the above
will give brainliest

Answers

(4 x 1000) + (6 x 100) + (8 x 10) + (2 x 1) + (5 x0.1) + (6 x 0.01)

4000+600+80+2+0.5+0.06

Solve both please 7th grade math

Answers

A 49
B will be 106 i Belive

Can anyone help with this? Its only a picture, and don't say "IDK", it is also due tonight.

Answers

Answer:

I believe it would be y = 5x

Please let me know if I've done something wrong :)

Answer:

Y=5x

Step-by-step explanation:

y=mx+b

m=slope

the slope is 5/1

b=yintercept

the y intercept is at 0,0

y=5x

Plz Need Help Fast, I will mark brainilest

Answers

The answer is 3 I think

Johnny has 20 coins. They are nickels and dimes. If Johnny has $1.40, how many dimes does Johnny have?

Answers

Answer:

Step-by-step explanation:

I think you should subtract

Hope this helps you

Johnny would have 12 dimes. 12 times 10 = $1.20. Then, 8 nickels. 8 times 5 = $0.40.

So, Johnny would have 12 dimes and 8 nickels.

Simplify the expression.
x+3+5x

Answers

The simplified expression would be 6x+3 :)
i would say 6x+3 im not a genius tho

The Farmers Market sells apples by the bushel, and each bushel of apples weighs 42 lbs. A bushel of large apples contains 84 apples. If a bushel of small apples contains twice as many apples as a bushel of large apples, how many small apples are in 1 lb. of small apples? It’s says show work

Answers

Answer:  4 apples in 1 lb

Step-by-step explanation:  There are twice as many small apples  as large apples, so multiply 2 × 84 = 168

to find apples per pound, divide the total number of apples, 168,  by the weight of the bushel: 42 lbs.

168 /42 = 4 apples/lb

The required number of small apples in one pound is 4.

Given that,
Each bushel of apples weighs 42 lbs. A bushel of large apples contains 84 apples. If a bushel of small apples contains twice as many apples as a bushel of large apples, how many small apples are in 1 lb. of small apples, is to be determined.

What is simplification?

The process in mathematics to operate and interpret the function to make the function or expression simple or more understandable is called simplifying and the process is called simplification.

Here,
Large apples in 1 pound = 84 / 42 = 2
Now, according to the question,
Number of small apples = 2 (number of large apples)
Number of small apples = 2 (2)
Number of small apples = 4

Thus, the required number of small apples in one pound is 4.

Learn more about simplification here: https://brainly.com/question/12501526

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I need help please..

Answers

Answer:

35+.8x= -7x-43, X=-10   , 3/4X-18=1/2X+5 X=92

Step-by-step explanation:

Which expression would be easier to simplify if you used associative property to change the grouping.
A. 4+(1.2+(-0.2))
B. 85+(120+80)
C. [-40+(60)]+52
D (2+3/7)+4/7
(I'll give brainliest for the correct and most accurate answer.)

Answers

Answer:

D. (2 + 3/7) + 4/7

Step-by-step explanation:

In B and C, the numbers involved in expressions are integers.

Hence, they can be easily added or subtracted.

In D, the numbers involved in expression are fractions which are not grouped together.

They can be added but by using associative property, it becomes much more easier.

That is, grouping fractions.

In round 1 of a game s student loses 5 points loses 3 points gains 17 points and loses 7 points whats the student score at the end of round 1

Answers

Answer:

10 pts

Step-by-step explanation:

Answer: 10

Step-by-step explanation:

Which expression would be easier to simplify if you used commutative property to change the grouping?
A. 95+47+5
B. 1/4+3/4+2
C. 20+80+(-11)
D. -40+(-50)+17
(I'll give brainliest for correct answer and how accurate it is.)

Answers

A because it’s just pluss what makes it easier

Answer:

I think c

Sory if it is wrong

Step-by-step explanation:

What is the danger zone for bacteria? A. Below 40 B. Between 40 and 140 C. Above 140 D. The only safe temperatures are between 40

Answers

Answer:

B

Explanation:

Bacteria grow most rapidly in the range of temperatures between 40 °F and 140 °F, doubling in number in as little as 20 minutes. This range of temperatures is often called the "Danger Zone." Never leave food out of refrigeration over 2 hours.

Answer:

B. Between 40 and 140 Fahrenheit

Step-by-step explanation:

This is called the "Danger Zone" because between these temperatures bacteria grow the fastest. Doubling time can be as little as 20 minutes.

What is 45 x 78÷ 14 + 98

Answers

Answer:

Step-by-step explanation:

45*75=3510/14=250.71+98=348.7142857142857

WHat's the answer!! Help, has to be either B or D

Answers

Answer:

D

Step-by-step explanation:

Answer:

A

Step-by-step explanation:

Students can easily make mistakes when simplifying radicals, list 2 of these common mistakes, and explain how to fix these mistakes.

Answers

What is the problem which problem what do you mean I need that info

the following equation has been solved incorrectly. Explain the students error​

Answers

On the right side of the equation, when the student combined like terms, 7x and -4x, they did not combine them correctly. Instead of combining them correctly, the student forgot to include the sign of the -4x which caused the sum of the two terms to be 11x instead of 3x. Hope this helps!
What he said ^^ no problem

At a butcher​ shop, Karl bought 7 13/20 lb of beef and some pork. He left with 14 19/25 lb of meat. Express the number of pounds of pork be bought using a decimal.

Answers

I think it’s 43 1/5 but I’m not sure

aaahahahhahahhahahahahhahah plz help me

Answers

Answer:

The answer is

[tex] \frac{3}{2} [/tex]

GOOD LESSONS ♡

(2/5 - 1/10) + 2^3 - 23/25

Answers

Answer:

the answer is 7.38

Step-by-step explanation:

Answer:

369/50 if your looking for fraction based if your not then its 7.38

Step-by-step explanation:

Please help me thank you

Answers

Answer:

5 groups

Step-by-step explanation:

each group will have 3 coaches and 7 students

hope this helps :)

Katherine lives (1 x 100) + (2 x 1) + (8 x 1/10 ) + (4 x 1/100 ) miles away from her grandma. Which number represents the distance in base-ten numeral?
120.84
102.84
1.084
121.24

Answers

The answer is 102.84

HELP! I DONT UNDERSTAND AND ITS DUE IN A BIT!!

Answers

Answer: It is a 90 Clockwise Degree Turn.

Step-by-step explanation:

From my knowledge, a 90-degree turn is a turn to the right.

So if you turn the "C" in the Y-axis 90 degrees you will get The "C" on the X-axis.

For Example: When you walk around a street you either turn 90 degree's to the right or 90-degrees to the left.

Hope this Helps!

90° clockwise around the origin :)

Olivia is making bead bracelets for her friends. She can make 3 bracelets in 15 minutes.

Find the constant of proportionality in terms of minutes per bracelet.

Answers

Answer:

The answer should be every 5 minutes one bracelet is made.

Step-by-step explanation:

every 5 minutes a bracelet is completed

2/3 of a circle is what % of a circle

Answers

Hi! I believe your answer is 66% because 2/3 is equivalent to 0.66666667, which simplifies to 66%. I hope this helps you! Good luck and have a great day. ❤️✨

The answer should be 80%

BRAINLIST and points help

Answers

Answer:

B=2

Step-by-step explanation:

b= 2
hope this helped

NO ONE IS HELPING ME PLEASE IM FINNA CRY I SWEAR I BEGGING YOU!!!! THIS IT DUE TODAY and PLZ explain!!!! !(85 points)

1 question is first image


2 question is second image


3 question is third image

Answers

Answer:

1)13/3 2)-1/2 3)5/6

Step-by-step explanation:

1) Determine the sign(since there is 2 negatives it turns positive)

Then you simplify the complex fraction to 4/3+3

Then you calculate

2) Determine the signs you get to -6+4/-1+5

calculate -2/4

then solve

3) multiply everything to get 8-(5+(-12))/16+2

Then you calculate 8-(5-12)/18

Calculate again8-(-7)/18

PLZ PLZ PLZ PLZ PLZ PLZ PLZ HELPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPP!!!!

Answers

take 9 away from 15 then add what ever number you got to 6 for x
First step is take 9 away from 15 then second step is to add any number you got 6 from x

118/13= 59/z

what is the answer?? ​

Answers

Z=6.5 because 118/2 is 59 and 13/2 is 6.5 hope I got it right and it helped

Answer:

[tex]z = 6.5[/tex]

Step-by-step explanation:

If we take a look at the problem, we are solving for z.

[tex]\frac{118}{13} = \frac{59}{z}[/tex]

To figure it out, we have to cross multiply. So we take [tex]118 * z[/tex] and [tex]59 * 13[/tex], which gives us [tex]118z =767\\[/tex]. Next, we divide both sides with 118.

[tex]\frac{118}{118}z=\frac{767}{118}\\ \\z = 6.5[/tex]

Then, we get 6.5 as our answer!

Hope this helped!

-Bob Ross

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