Name the property of real numbers illustrated by the equation (x + 8) + 4 = x + (8 + 4)

A. Distributive Property

B. Inverse Property

C. Commutative Property

D. Associative Property

Answers

Answer 1

Answer:

D. Associative Property

Step-by-step explanation:

The group is being switched around.

Answer 2

Answer:

the answer is

Step-by-step explanation:

associative property


Related Questions

81000 in standard form

Answers

I believe the answer is 10^4

Answer: 81000 x 10 0

Step-by-step explanation:

The zero is meant to be a small zero on top of the 10 like a degrees symbol btw

Write an equation in slope-intercept form of a line with a slope of -2 that goels through the point (4 , 2)

Answers

Answer:

y=-2x+10

Step-by-step explanation:

please help me ASAP explain for brainlist.

Answers

The correct answer is B

Answer:

option d

Step-by-step explanation:

This is because Sample Space is collectio of all the outcomes and in this question ( 1,2,3,4,5,6,7,8) is sample space

while 5 is the the outcome , so Outcome shown is 5

Hope the above solution will help you

(PLEASE ANSWER FOR BRAINILEST ASAP!!) (EXPLAIN!!) 3 boxes all way the same amount. All together they weigh 54.3 pounds. How much does 1 box weigh?

Answers

One weighs 18.1 pounds.

Answer:

Step-by-step explanation:

Let B = the weight of box B

Let 2B = the weight of box A

Let 2B + 30 = the weight of box C

B + 2B + 2B + 30 = 640

5B = 610

B = 122 pounds, weight of box B

2B = 2(122) = 244 pounds, weight of box A

2B + 30 = 2(122) + 30 = 274 pounds, weight of box C

Packages of ramen noodles are on sale at the grocery store for $.20 each. Lucy decides to stock up since she had a $3 off coupon. If she can spend no more than $8, how many packages of ramen could she buy?

Answers

Answer:

55

Step-by-step explanation:

.20*55=11-3=8

6-4x-5x=-57, pls i need help

Answers

Answer: 7

Step-by-step explanation:

6-4x-5x=-57

6 -9x= -57

9x= 57+6

9x= 63

Divide both sides by 9

x= 7

X = 7
Dgdgdgbfbgffggf

At Ned's newsstand, 4 magazines cost $24.00 how many magazines could you buy with $60.00 help

Answers

11. But probably if their is tax like 10 lol. But 11

You can buy 10 magazines in $60.

What is unit rate?

A unit rate means a rate for one of something.

Given that, the cost of 4 magazines is $24.00

For 4 magazine → $24

So, for 1 magazine = 24/4 = $6

So, in $60,

60/6 = 10

Hence, you buy 10 magazines in $60.

For more references on unit rate, click;

https://brainly.com/question/11258929

#SPJ2

A ship is 350 feet from lighthouse which is 40 feet tall, find the angle of depression from the top of the lighthouse to the ship.

Answers

Answer:

6.519801752°

Step-by-step explanation:

Let θ represent the angle of depression

tanθ=40/350

θ=tan^-1(40/350) *tan^-1 means inverse tan*

θ=6.519801752°

6.52 degrees is the correct answer

Will has 35 buttons. He puts 5 buttons on his backpack. How many
buttons does Will have left?

Answers

Answer: 30 buttons

35 - 5 = 30

Answer:

30

35-5=30

Step-by-step explanation:

You measure 3 inches between your house and the movie theater. How many miles is in from your house to the movie theater?

Answers

Answer:

4.734 * 10^-5 miles

Step-by-step explanation:

Given that:

Distance between House to movie theater = 3 inches

Expressing the distance in miles :

Converting inch to miles

1 inch = 1.578 * 10^-5 miles

3 inches = (3 * 1.578*10^-5)

3 inches = 4.734 * 10^-5 miles

If the first term of a sequence is four and the common difference is -9. Find a40.

(Write your answer as a value without spaces ex. 678, -973, etc.)​

Answers

Answer:

an = a1 + d(n - 1)

Step-by-step explanation:

an = 4 + -9(40 -1)

an = 4 + -9(39)

CAN SOMEONE HELP PLS

Answers

1)0.57 cent
2)$1.57
3) $2.00
4)$16.57
5)7 cent
6)$6.57
7) $2.07
8)10 cent
9)$17.07

Mary bought 5 pairs of gloves and 2 hats for $95. Mary received a text from her friend Joanna ask her to buy 4 pairs of gloves and a hat. Mary told Joanna that the cost was $70. How much does each pair of gloves cost? How much does the hat cost?

Answers

Answer: Each pair of gloves costs $15 and each pair of hat costs $10.

Step-by-step explanation:

Let x = Cost per pair of gloves

y= Cost per hat.

As per given, we have

[tex]5x+2y=95 \ \ \ \ (i)\\4x+y=70\ \ \ \ \ (ii)[/tex]

Multiply (ii) by 2 , we get

[tex]8x+2y=140\ \ \ \ (iv)[/tex]

Eliminate (i) from (iv), we get

[tex]3x=45\\x=15[/tex]

Put this in (ii), we get

[tex]4(15)+y=70\\60+y=70\\y=10[/tex]

Hence, each pair of gloves costs $15 and each pair of hat costs $10.

Rebecca's electric bill is a variable expense. What is the average amount she pays for electricity if she paid $135 in December, $129 in January, $99 in February, $120 in March and $140 in April?

A. $124.60

B. $125.00

C. $105.90

D. $132.45
I’ll give brainiest:)

Answers

Answer:
i think the answer is b
The answer B
I think so

Seven less than the product of 6 and a number is equal to 8 translates to an equation

Answers

Answer:

Answer: No it isn't an equation. Not yet at least.

Step-by-step explanation:

Yes it might well do, but if it does, it needs something on the other side of wherever you put the equal sign.

6x - 7 is all you have so far and you have no idea what comes next. As it is, what you wrote is an algebraic expression.

3) The legs AB and BC of a right-angled triangle ABC measures (2x-13) cm and (x - 12) cm
respectively. Find the length of BC, if AC is 37 cm long.

Answers

Answer:

30 I am good but I don't know if it's right

can someone help me witth these two questions

Answers

Answer:

ok

1st one x=245°

2nd one x= 250

Step-by-step explanation:

hope its correct

hope u find it helpful

Answer:

x = 245 and x = 20

Step-by-step explanation:

The sum of the interior angles of a polygon is

sum = 180° (n - 2) ← n is the number of sides

Here n = 5 , then

sum = 180° × 3 = 540°

Sum the interior angles and equate to 540

25 + 112 + 100 + 58 + x = 540

295 + x = 540 ( subtract 295 from both sides )

x = 245

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

5x + 2 + 3x + 5 + 8x + 8 + 4x + 15 + 5x + 10 = 540

25x + 40 = 540 ( subtract 40 from both sides )

25x = 500 ( divide both sides by 25 )

x = 20

in triangle ABC with vertices A(4,5),B(-2,1) and C(0,3),E and F are midpoints of sides AB and AC resp . then, find coordinates of E and F​

Answers

Answer:

The answer is

E=(1, 3)

F=(2,4)

Step-by-step explanation:

When E is midpoint of AB

Then

[tex]e = ( \frac{4 + ( - 2)}{2} . \frac{5 + 1}{2} ) \\ = (1.3)[/tex]

By this way we can find F

[tex]f = ( \frac{4 + 0}{2} . \frac{5 + 3}{2} ) \\ = (2.4)[/tex]

I am a math teacher If you need any explanation you can communicate with me on Whats on this number +201557831028

Erin buys 4 packs of potatoes costing £2 each, 2 packs of carrots for £3 per pack, and 5 turnips costing 70p each.
If she pays with a £20 note, how much change would she get in pounds, £?​

Answers

She would get £2.50

4 times 2 is 8
2 times 3 is 6
0.7 times 5 is 3.5
Add them together
Minus it from 20
It equals £2.50

I’ve been stuck on this for a few minutes. I’m not really sure what to do..

Answers

Answer:

Step-by-step explanation:

You know that the three angles of a triangle add up to 180°. If one angle is 38° and another angle is 67°, then the third angle must be 180°-38°-67° = 75°.

You have a straight line across the bottom, and three angles meeting in the middle of it. Those three angles add up to 180°. One of them is 75°, another is 50°, so the third angle must be 180°-75°-50° = 55°.

That leaves you with one unknown angle. ? = 180°-40°-55° = 85°

Please help me with my homework! Its past due and I am having trouble on it :/

Answers

Answer:

the first one is 57

the second one is 60

3rd one is 13

4th one is 9

Step-by-step explanation:

hope this helps :) have a nice day !!

**please let me know if this was wrong**

Answer:

1) In the second step, it was supposed to multiply 9 and 2 and 36 by 3 instead of adding 9 and 3 to each other because multiplication and division comes before adding, according to pemdas.  

2) In the second step, they were supposed to multiply 6 and 4 instead of subtracting 27 and 6 because multiplication comes before subtraction, according to pemdas.

3)

(43 - 20) - 2 · 5

43 - 20 = 23

23 - 2 · 5

2 · 5 = 10

23 - 10 =

13

4) 81 ÷ (13 - 4)

13 - 4 = 9

81 ÷ 9

81 ÷ 9 =

9

5) 7 · 8 - 3 · 6 + 1

7 · 8 = 56

3 · 6 = 18

56 - 18 + 1

56 - 18 = 38

38 + 1 =

39

6)

7)

8)

Step-by-step explanation:

Section 1: Explain the error in each problem below.

1) Pemdas says multiplication and division comes before adding, so you must solve the multiplication in the problem first before the addition.  

2) Again, as pemdas says, multiplication comes first before subtraction, so you must solve the multiplication in the problem first before the sutraction.

Section 2: Simplify the following expressions.

3) (43 - 20) - 2 · 5

Pemdas says to solve the parenthesis first.

43 - 20 = 2323 - 2 · 5

Now multiplication comes next (because there's no exponents).

2 · 5 = 1023 - 10

Now subtraction.

23 - 10 = 13

4) 81 ÷ (13 - 4)

Pemdas says to solve the parenthesis first.

13 - 4 = 981 ÷ 9

Now division comes next.

81 ÷ 9 = 9

5) 7 · 8 - 3 · 6 + 1

Pemdas says to solve the multiplication first.

7 · 8 = 56 3 · 6 = 1856 - 18 + 1

Now subtraction and addition.

56 - 18 = 3838 + 1 = 39

6)

Section 3: Insert grouping symbols to make the statements true.  

7)

8)

P.S. I am updating

PLS HELP

How many solutions does this system of equations have?
y= -6x-7
y=-6x-7

Answers

Answer:

They can have infineyely many solutions :)

1.5/16 as a mixed number

Answers

Answer:

Um 1.5 is less than 16 so it wont be a mixed number.

Step-by-step explanation:

Did you type the question wrong?

Step-by-step explanation:

1.5 is the less that 16 that why it is the mixed fraction

solve by substitution y - 3x = 2, x - 2y = -6

Answers

y=2+3x

putting value on second equation we get..

x-2(2+3x)=-6

x-4+6x=-6

7x=-2

×=-2/7

& y=2+3(2/7)

y=2+0.87

y=2.87..Ans..

Answer:

x= 2/5

y= 3.2

Step-by-step explanation:

y-3x=2

y=3x+2

replace y with 3x+2 in second equation;

x-2(3x+2)= -6

x- (6x+4)= -6

x-6x-4= -6

-5x-4+4=-6+4

-5x= -2

x= 2/5

y=3x+2

y=(3×2/5) +2

y= 3.2

Simplify the expression.
-4i(2+3i)

Answers

Answer:

-8i + 12

Step-by-step explanation:

-4i(2 + 3i) = -8i - [tex]12i^{2}[/tex] = -8i - 12 * (-1) = -8i + 12

Answer:

12−8i

Step-by-step explanation:

-(-4 *3+4*2i)

-4*3=12

4*2=8

=12-8i

Solve the simultaneous equations
5x + 3y = 41
2x + 3y = 20
Do not use trial and improvement

Answers

5x + 3y = 41
2x + 3y = 20
Solve 3y
-> 3y = 41 - 5x
Substitute
2x + 41 - 5x = 20
-3x = 20 - 41
= -21
x= 7
Substitute
2x + 3y = 14 + 3y = 20
3y = 6
y = 2
=> x=7, y=2

The solution to the system of equation is (7, 2)

Using the simultaneous equation:

5x + 3y = 41

2x + 3y = 20

using elimination method

Subtract equation 1 from 2 to have:

5x - 2x = 41 - 20

3x = 21

x = 21/3

x = 7

Substitute x = 7 into equation 1 to get y

5x + 3y = 41

5(7) + 3y = 41

35 + 3y = 41

5y = 41 - 35

3y = 6

y = 6/3

y = 2

Hence the solution to the system of equation is (7, 2)

Learn more here: https://brainly.com/question/15165519

6. A quadrilateral ABCD is drawn to circumscribe a circle. Prove that AB + CD = AD + BC.​

Answers

Answer:

i not sure sorry ..........

What are the coordinates of point S?

Answers

Answer:

(-2,3) or (3,-2)

Step-by-step explanation:

follow the line if that makes since

Answer:     (-3,2)

Step-by-step explanation:

The point is 3 spaces left so it would be negative and 2 spaces up so positive.

please answer this question

PLEASEEEEE HELP MEH
I'm preparing for a math exam please help mehhhh

Answers

Answer:

top left x=70⁰

top right is 69⁰

bottom left is 125⁰

bottom right is 130⁰

Step-by-step explanation:

comment for explanation

CAN SOMEONE PLEASE HELP ME WITH THIS LIKE I NEED THIS FOR A GRADE PLEASE ANYONE!!

Answers

Answer:

C

Step-by-step explanation:

Answer:

its b cause its asking you to 3 3 3 its 9 theres 2 ms and 5 cs bassicly out in a si.pkw form

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