Mathematics Middle School

Which properties were used to simplify the following expression? Select all that apply.

4 + 3(9 + 2)
4 + (3 × 9) + (3 × 2)
4 + 27 + 6
4 + 6 + 27
10 + 27
37

associative property of addition
associative property of multiplication
commutative property of addition
commutative property of multiplication
distributive property
identity property of addition
identity property of multiplication

Answers

Answer 1
Associative property of addition

Related Questions

Can someone answer the question below

Answers

Answer:

I believe it should be,

1/3p+25

The 1/3’d is being multiplied by p or the unknown which would give you what your increasing by 25.

You put $6000 in an account. The account earns $1050 simple interest in 5 years. What is the annual interest rate?

Answers

1050 divided by 5 =210$ birr per year

100×0.23 =
101×0.23 =
102×0.23 =
103×0.23 =

Answers

Answer:

100×0.23=23

101×0.23=23.23

102×0.23=23.46

103×0.23=23.69

Answer:

Step-by-step explanation:

100×0.23= Answer:23101×0.23=Answer:23.23102×0.23=Answer:23.46103×0.23=Answer:23.69

Hey, I really need some help figuring out this question.

Answers

Answer:

it's d

Step-by-step explanation:

because the answer would be the same on both sides

Convert the fraction into a decimal number.

0.875
1.14286...
0.8...

Answers

Answer: 0.875: 7/8

1.14286: 57143/50000

0.8: 4/5

Step-by-step explanation:

What two things are true if a relationship is proportional? Is there a shortcut ?

Answers

Answer:

They represent the same relationship and one variable is always a constant value times the other.

Step-by-step explanation:

Please answer these and I will give brainliest!!!

Use dimensional analysis to convert each rate. Round your answer to the nearest hundredth if necessary.
#1. A cyclist travels 56 miles in 4 hours. Find the cyclist in feet per minute.
#2. Lebron James', contract is rumored to be around 430,000,000 per year. Convert this to dollars per minute.
#3. A giraffe can run 32 miles per hour. What is their speed in feet per second?

Answers

Answer:

#1. 1232 feet per minute

#2. $14.81 per second

#3. 46.93 feet per second

Hope This Helps!

And that it's right!

Jen got 18 out of 21 questions on a test (missed 3 questions). What is their percent grade. How did you find the answer?

Answers

Simplify the fraction “18/21” into “6/7” (divide numerator & denominator by 3), and then input that into your calculator. You get 0.85714286, which rounds to about 0.86. Then you multiply by 100 to make it a percent. The answer is 86%.

What is the solution to the expression -2 -3 (-4)?

1. -9
2. -3
3. -1
4. 5

Answers

it is -9!
-2 + -3= -5
-5 + -4 = -9
It would be 1. Or -9 what ever you want to call it

A number line going from negative 1 and two-thirds to positive 1 and two-thirds in increments of one-third. What is 1 and two-thirds minus 2 and one-third

Answers

Answer:

-2/3

Step-by-step explanation:

Answer:

-2/3

that guy is right

Step-by-step explanation:

Simple math question

Answers

Answer:

All squares have four equal angles

Step-by-step explanation:

Every square must have four equal angles to be a square

Answer:

All squares have 4 equal angles

Step-by-step explanation:

squares are always even, whilst rectangles have 2 diff lengths

Select the correct answer.


The ratio of keepers to animals in the city zoo is 2 : 7. The table shows the current numbers of animals and keepers in the zoo. If 21 more animals are added, how many total keepers are needed to maintain the ratio of keepers to animals?


free 50 points btw

Answers

Answer:

You need 8 keepers in total.

Step-by-step explanation:

2:7   _:28

28 divided by 7 is 4

4 times 2 is 8

Answer:

8

Step-by-step explanation:

2/7= _/28

Cross multiply and divide and you will get 8

I WILL MAKE BRAINLIEST (please show work)
a) In the first event, the eighth graders are running a baton relay race with three other classmates. The team’s top speed for each leg is 56.81 seconds, 59.22 seconds, 57.39 seconds, and 60.11 seconds. Use the information to predict the team’s best time for the race.
If the team’s best time for the race is less than 4 minutes, then the eighth graders earn 40 points. If not, the seventh graders earn 40 points. Which grade should be awarded 40 points?

Answers

Answer:

233.53 s

Step-by-step explanation:

The sum of best times for the legs is ...

 56.81 +59.22 +57.39 +60.11 = 233.53 . . . seconds

Without additional information about the effects of training or the normal variation in times, this is the best prediction we can make.

The Answer is 233.53sec

The maximum height of an asian elephant is 9.8 feet. What mixed number represtents this height?

Answers

Answer: 9 and 4/5

Step-by-step explanation:

Answer:

9 &4/5

Step-by-step explanation:

H e l p i n e e d h e l p

Answers

Answer:

OML I have no flipping clue...

Step-by-step explanation:

sorry friend, I just don't know, but thanks for the points☺

I’m so sorry I don’t know how to answer this is just to ask another question cuz I need help with math I’m so sorry I hope you get a great answer

What is the mathematical equation for 1 bobcat has 2 eyes =

Answers

Answer: 86?

Step-by-step explanation: 60/2 = 30 x= bobcat and eyes

4x + 2(30-x) = 86

    4x + 60 - 2x = 86

              2x = 86-60

              2x = 26

               x = 13   4 x 13 + 2 x 17 = 86  

     

               

Estimate the sum or difference. Start Fraction 9 over 50 End Fraction+Start Fraction 7 over 15 End Fraction

A. 0
B. one-half
C. 1

Answers

Answer:

one half

Step-by-step explanation:

I think
it’s B. I’m not sure tho

Define Rational number. Give some examples of rational numbers when in different forms.

Answers

A rational number is a number that can be expressed as the quotient of fraction p/q of two integers, a numerator p and a non-zero denominator q. Since q may be equal to 1, every integer is a rational number.

A rational number is a number that can be expressed as the quotient of fraction p/q of two integers, a numerator p, and a non-zero denominator q.

What is a rational number?

A rational number is one that can be stated mathematically as the ratio or fraction p/q of two numbers, where p and q are the numerator and denominator, respectively. For instance, every integer and 3/7 are rational numbers.

A rational number is a number that can be expressed as the quotient of fraction p/q of two integers, a numerator p and a non-zero denominator q. Since q may be equal to 1, every integer is a rational number.

The examples of rational numbers are as follows:-

p / q = 7 / 8

p / q = 5 / 3

p / q = 6 / 9

All the above fractions are rational numbers.

To know more about a rational number follow

https://brainly.com/question/1535013

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can you guys help with this

Answers

Answer:

C

Step-by-step explanation:

The answer is C.

Answer:

C

Step-by-step explanation:

please help due soon will give branliest and 10 points

Answers

Answer

1,4,5

Step-by-step explanation:

Sorry if Im wrong...

Solve the following equations. Check your work.
1. 5m + 4 = 7m + 6

Answers

2m+2. Because u subtract 5m with 5m which gives u m then u do the same with 7m then u get 2m,then u subtract 4 from 4 and 6 whoch gives u 2
2m+2 yep is correct

I request assistance.

Answers

Answer:

b

Step-by-step explanation:

Answer:

I got b

Step-by-step explanation:

Im not sure how to fully explain but I hope tthishelps!

I'll give brainliest!! Please answer these please!!

Use dimensional analysis to convert each rate. Round your answer to the nearest hundredth if necessary.
#1. It costs $0.001 per hour to run a light bulb. How much does it cost to run each light bulb per month?
#2. The winner of the biggest loser lost 0.952 ounces per hour. How many pounds did they lose per week?
#3. Falcons can dive at a speed of up to 318 feet per second. How many miles per hour can they dive?

Answers

Answer:

#1 It costs $0.73 to run each lightbulb per month

#2 They lost 9.996 pounds per week

#3 They can dive 3.61363636 miles per hour

Step-by-step explanation:

#1 There are 730 hours in a month. Multiplying that by 0.001 gives $0.73.

#2 There are 168 hours in a week. Multiplying that by 0.952 gives 159.936 ounces. 159.936 ounces = 9.996 pounds

#3 One minute equals 60 seconds. 318x60 gives 19,080 feet. 19,080 feet converted gives 3.61363636 miles

Carla has $90. She makes $6 per day walking a neighbor's dog for half an hour, but she spends $7.50 per day on lunch. What is the fewest number of days for which Carla will have less than $30? Solve this inequality to find out. 90 + 6x - 7.5x < 30 (hint: combine like terms first)

A- 30
B- 41
C- 60
D- 90

Answers

Answer:

b

Step-by-step explanation:

use pemdas . p- parentheses e- exponent m- multiplication d- divide a- add s- subtract

guess the song

I was lost and was afraid
I believed all of their lies...
I believed that i was safe
And that i would never die...
Now i'm all alone
I've been hiding in the dark
I just want to go home
But my deeds send me too far...
All stay strong
We live eternally...
All is well in the Afton family...
Lives, they fell to pure insanity...
All is hell in the Afton family...
I never did go near
'Cause i know just what i saw...
Yet on a day of joy
My life ended to they're flaws...
Now i'm all alone
Fighting monsters in the dark...
I wish thag i could live
But i fear i've gone too far...
All stay strong
We live eternally...
All is well in the Afton family...
Lives, they fell to pure insanity...
All is hell in the Afton family...
I often do pretend
Can't you see i'm broken down...
I wish this were the end
But continue on i vow...
Now i'm all alone
I'm still hiding in the dark...
As saddened souls, we roam
We can only go so far...
All stay strong
We live eternally...
All is well in the Afton family...
Lives, they fell to pure insanity...
All is hell in the Afton family...
Always begging please
Yet the outcome i would dread...
I've fallen to my knees
Let my pride get to my head...
Now i'm all alone
Hearing whispers in the dark...
I wander through the past
Seeing memories afar...
All stay strong
We live eternally...
All is well in the Afton family...
Lives, they fell to pure insanity...
All is hell in the Afton family...

Answers

Answer:

uh what kinda song is that??

pretty sure this app is for school work questions not guessing the song

Several items in a store are on sale. Complete the table with the correct prices.

Answers

Answer:

1.$36

2.$35

3.$51

4.$43

Answer:

1.) $35

2.) $36

3.)$51

4.)$43

Step-by-step explanation:

1.)30% of 50 is 15 and you would subtract the 15 from 50 to get your discount.

2.)55% of 80 is 44 and you would subtract 44 from 80 to get your after price.

3.)For this one, I divided the discount price by 3 and multiplied it by 4 to get the original price since 1/4 was taken from it or 25%.

4.) There was only one option left.

THE ANSWER IS A FRACTION!

Answers

1 4/6 or 1 2/3 (simplified)

Add them all together after finding the Common denominator
1/6+1/6+4/6+4/6

Write an algebraic expression for the situation. 7 less than the quotient of y divided by 4

Answers

Answer:

7- (y/4)

Step-by-step explanation:

The expression which shows 7 less than the quotient of y divided by 4 will be y/4 - 7.

What is an expression?

A mixture of variables, numbers, addition, subtraction, multiplication, and division are called expressions.

A statement expressing the equality of two mathematical expressions is known as an equation.

As per the given,

The quotient of y divided by 4 = y/4

7 less than y/4 = y/4 - 7.

Hence "The formula that displays 7 less than the result of dividing y by 4 is y/4-7".

To learn more about expression,

https://brainly.com/question/14083225

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PLEASE HELP!!!!
Which equation is a point slope form equation for line AB?

1. y+2=−2(x−5)

2. y+5=−2(x−2)

3. y+1=−2(x−6)

4. y+6=−2(x−1)

Answers

Answer:

i think its 4

Step-by-step explanation:

the point on the line it it describing is a and it is at (1,6)

i hope this helps

It is 2 because the point (5,-2) lies on line AB

-2.8f + 0.9f - 12 - 4

Answers

Answer:

The answer is -1.9f-16

Step-by-step explanation:

Answer:

-1.9f-8

Step-by-step explanation:

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