Which shows the best use of associative and commutative properties to make simplifying 3/4 - 5 + 9 -2/4 + 2 easier?

Answers

Answer 1

Answer:

(-5) + 9 + 2 + 3/4 + (-2/4)


Related Questions

PLEASE HELP!?!? What is the slope of the line graphed below?
(3, 3)
(0,-6)
m =
A.1/3
B. -3
C. 3
D. -1/3

Answers

Answer:

Option B is correct -3

Step-by-step explanation:

(3, 3)

(0,-6)

Slope=y1-y2/ x1-x2

=3+6/0-3

=9/-3

=-3

Slope is -3 so option B is correct

Answer: It’s -3, just did it

Step-by-step explanation:

Travis received a letter from his bank saying that his checking account balance fell

zero. His account transaction log is shown below.

On which line did Travis make a mathematical error?

CHECK NO.

PAYMENT

DEPOSIT

DATE

10/17

10/18

DESCRIPTION OF TRANSACTION

Beginning Balance

CBC Audio (Headphones)

BALANCE

$367.50

-62.00

1125

$62.00

$305.50

Line 1

1126

10/22

NY Sport (Basketball Shoes)

$87.00

-87.00

$218.50

Line 2

Debit

10/25

Gary's Country Market

$38.50

-38.50

$180.00

Line 3

1127

10/25

Iggy's Skate Shop (Skateboard)

$188.00

-188.00

$8.00

Line 4

10/25

Cash Deposit (Birthday Money)

$20.00

+20.00

$28.00

Lines

Debit

10/30

McDonuts

$5.95

-5.95

$22.05

Line 6

Answers

Answer:

on line 13, where it says 1125

Answer:

Line 3

Step-by-step explanation:

L1  1126  10/22    NY Sport (Basketball Shoes)   $87.00  -87.00  $218.50

L2 Debit 10/25  Gary's Country Market            $38.50  -38.50  $180.00

L3 1127   10/25  Iggy's Skate Shop (Skateboard)  $188.00  -188.00  $8.00

L4          10/25  Cash Deposit (Birthday Money)  $20.00 +20.00 $28.00

L5 Debit  10/30  McDonuts                                    $5.95     -5.95     $22.05

The mistake is on line 3.

He subtracted $188 from $180 and got $8.

He should have gotten -$8 instead of $8.

pls help solve for z

Answers

Answer:

where is the work

Step-by-step explanation:

fdcaccge so tsf

Answer:

Step-by-step explanation:

z/m - z/n = 1                         Take out z as a common factor.

z (1/m - 1/n) = 1                      Find the common denominator of the 2 fractions

m * n is the common denominator. Multiply the two fractions by mn

z (n - m)/mn = 1                     Multiply by mn

z (n - m) = mn                       Divide by n - m

z = mn/(n - m)

The last line is your answer.

A watercooler contains 160 cups of water. During practice, each person on a team fills a
water bottle with 3 1/3 cups of water from the cooler. Is there enough water for all 45
people on the team to fill their water bottles?
O yes
Ono

Answers

Yes, because 3 1/3 times 45 equals 150 which leaves 10 cups left over:

What is the slope of the line that passes through the points (2, -3) and (5, 1)?
1.-2/3
2.2/3
3.-4/3
4.4/3

Answers

Answer:

4/3

Step-by-step explanation:

To find the slope you use the equation y2 - y1 / x2 - x1. This means you take the y variable from your 1st point and subtract it from the y variable from the 2 one. ex: 1 - (-3) = 4 And then put it over the x variable from the first one subtracted from the x variable of the second one ex: 5 - 2 = 3 -> 4/3. If possible, simplify, but if it's like this one you don't have to.

4.
3. A full container of juice holds 64 fluid
ounces. How many 7-fluid ounce servings
of juice are in a full container?

Answers

Answer:

9.1 or 9.1 ≈ 9

Step-by-step explanation:

All you have to do is divide 64/7 which gives you the number of containers.

Hope this helps!

18 - x = 15
Solve equation please

Answers

Answer:

3 is x

Step-by-step explanation:

Simplify the expression. .

2.3h( 6 – k)

Step by step please

Answers

Answer:

18h - 3hk

Step-by-step explanation:

3h(6 - k)

= 3h(6) + 3h(-k)

= 18h + -3hk

= 18h - 3hk

The simplified for of the expression 2.3h(6 - k) can be written as 13.8h - 2.3hk

Given the expression :

2.3h(6 - k)

Open the bracket ; multiply values in the bracket by 2.3h

13.8h - 2.3hk

Since there is no other way to reduce the expression further, then the simplified form of the expression would be expressed as 13.8h - 2.3hk

Learn more : https://brainly.com/question/18109354

Plz Hurry This Is Timed​

Answers

Answer:

2nd answer. it is because it is

Answer:

I believe the correct answer is the first one

Step-by-step explanation:

The LCM of 6 and 10 is _______. Numerical Answers Expected! Answer for Blank 1:

Answers

Answer:

2

Step-by-step explanation:

2 times 3 6

2 times 5 is 10

Answer:

30

Step-by-step explanation:

The LCM of 6 and 10 is 30.

The figure shows the letter M and four of its transformed images-A, B, C, and D:
2 3 4 5 6
MWM
Which of the four images was formed by a reflection of the letter M? (1 point)
OA
OB

Answers

Answer:

D

Step-by-step explanation:

HOPE THIS HELPS

HAVE A good  DAY

Please help ASAP!!! Christine found a sweater at Nordstrom that was priced at $72.00. She noticed there was a sign that said "All sweaters are 20% off today. How much was the sweater before tax?

a
$57.60

b
$96.40

c
$70.56

d
$56.70

Answers

Answer:

57.60

Step-by-step explanation:

72/100=0.72, 0.72x80=57.60

Find the slope of the line through the
given points: (2.5) & 4, 10).

Answers

Answer:

5

_

2

IS THE SLOPE OF (2,5) (4,10)

Answer:

Slope = 5/2

Step-by-step explanation:

10-5

4-2

Which equation is equivalent to n + 4 = 11? *
O (n + 4) x 2 = 11
O (n + 4) x 2 = 11 / 2
(n+ 4) x2 = 11 x 4
(n + 4) x 2 = 11 x 2

Answers

Answer: b.

Step-by-step explanation: I have the answer sheet

Her recipe calls for 120 ounces of salt water to every 10 ounces of seaweed to make one bottle of elixir.She wants to make smaller bottles of her elixir using only 1 ounce of seaweed per bottle.How many ounces of salt water will go into each of the smaller bottles?

Answers

120 divided by 10 is 12 so for every 1 ounce of seaweed there is 12 ounces of salt water. There for the answer is
12 ounces of salt water per 1 small bottle with 1 ounce of seaweed.

Which should be the first step in solving the equation 1.2 w minus 3.8 = 12.4? Add 3.8 to both sides of the equation. Subtract 1.2 from both sides of the equation. Multiply both sides of the equation by 1.2. Divide both sides of the equation by 3.8.

Answers

Answer:

Add 3.8 to both sides of the equation.

Step-by-step explanation:

12w−3.8=12.4

Add 3.8 to both sides.

12w=12.4+3.8

Add 12.4 and 3.8 to get 16.2.

12w=16.2

Divide both sides by 12.

w= 12/16.2

​Expand  12/16.2 by multiplying both numerator and the denominator by 10.

w= 162/120

​Reduce the fraction  162/120 to lowest terms by extracting and canceling out 6.

w= 27/20 also equal to 1.35

Answer:

A

Step-by-step explanation:

A survey of licensed drivers inquired about running red lights. One question asked, "Of every 10 motorists who run a red light, about how many do you think will be caught?" The mean result for 880 respondents was
¯x= 1.92. Suppose we know that σ = 1.83. Compute a 95% confidence interval for the mean opinion in the population of all licensed drivers. (Round your answer to the nearest hundredth.)

Answers

Answer: (0.79, 3.05 )

Step-by-step explanation:

Confidence interval for the population mean:

[tex]\overline{x}\pm z^c\dfrac{\sigma}{\sqrt{n}}[/tex]

, where [tex]\overline{x}[/tex] = Sample mean

[tex]\sigma[/tex] = population standard deviation

n= sample size.

[tex]z^c[/tex] = Critical z value for confidence interval c.

As per given:

n= 10

[tex]\overline{x}=1.92[/tex]

[tex]\sigma=1.83[/tex]

Critical z-value for 95% confidence = 1.96

A 95% confidence interval for the mean opinion in the population of all licensed drivers:-

[tex]1.92\pm (1.96)\dfrac{1.83}{\sqrt{10}}\\\\=1.92\pm1.134\\\\= (1.92-1.134,\ 1.92+1.134)\\\\\approx(0.79,\ 3.05 )[/tex]

Hence, a 95% confidence interval for the mean opinion in the population of all licensed drivers = (0.79, 3.05)

Determine the slope and y-intercept from the following equation

y = (32) x + 3

Answers

y intercept Y=3

I only know the y intercept have a good day

Slope is 32 and the y intercept is 3

On a tour of an gold mine, you find a nugget containing 0.82 ounce of gold. Gold is worth $1323.80 per ounce. How much is your nugget worth?

Answers

Answer:

$1085.516

Step-by-step explanation:

just multiply 1323.80 and 0.82

35,427 to nearest ten

Answers

Answer:

the answer is 35,430

Step-by-step explanation:

Find the number in the ten place 22 and look one place to the right for the rounding digit 77. Round up if this number is greater than or equal to 55 and round down if it is less than 55.

Question 2: At a swimming pool the ratio of those wearing sunscreen to
those not wearing sunscreen was 7 to 5. If the number of people not
wearing sunscreen was 30 then which of the following was the number of
people who were wearing sunscreen? *
—————————-
25
36
38
42

Answers

Answer:

42

Step-by-step explanation:

In the figure below, ∠DEC ≅ ∠DCE, ∠B ≅ ∠F, and segment DF is congruent to segment BD . Point C is the point of intersection between segment AG and segment BD while point E is the point of intersection between segment AG and segment DF .

Prove ΔABC ≅ ΔGFE. (10 points)

Answers

Answer:

Step-by-step explanation:

Given:

∠DCE ≅ ∠DEC

∠B ≅ ∠F

DF ≅ BD

To prove:

ΔABC ≅ ΔGFE

Solution:

                  Statements                            Reasons

1). ∠DCE ≅ ∠DEC                                1). Given

2). ∠ACB ≅ ∠GEF                               2). Vertically opposite angles to the

                                                                 congruent angles.

3). ∠B ≅ ∠F                                         3). Given

4). DB ≅ DF                                         4). Given

5). DC + CB ≅ DE + EF                       5). Segment addition postulate

6). DC ≅ DE                                        6). Property of isosceles triangle

7). CB ≅ EF                                         7). Transitive property

8). ΔABC ≅ ΔGFE                              8). ASA property of congruence

Of the 1450 books in the library, there are 6 times as many books in the fiction section as are in the nonfiction section. Also, there are 400 more books in the reference section than are in the nonfiction section. How many books are in each section?
Fiction: Nonfiction: Reference:

Answers

Number of books in non fiction section  = 200

Number of books in fiction section  = 800

Number of books in reference section  = 850

Step-by-step explanation:

Total number of books in the library = 1850

Let us assume, number of books in non fiction section = m

Number of books in fiction section= 4 x Number of books in non  fiction

= 4  x  (m)

So, the number of books in reference section = 650 + m

Now, Total Number of books =  Number of { Fiction + Non- Fiction + Reference} Books

or,  1850 =  m + (4 m)  + 650 + m

or, 6 m + 650 = 1850

⇒ 6 m = 1850 - 650 = 1200

or, m = 1200 / 6 = 200  

⇒ m = 200

Hence, the number of books in non fiction section  = 200

Number of books in fiction section  =  4 m = 4 x 200 = 800

Number of books in reference section = 650 + m  = 200 + 650 = 850

Which equation is parallel to y=-3 x + 4 and passes through the point (-3, 4)?

Answers

Answer:

y=−3x-5

Step-by-step explanation:

Answer:

Find the slope of the original line and use the point-slope formula y−y1=m(x−x1)to find the line parallel to y=−3x+4y

y=−3x−5y

It’s you birthday and you bought a giant sandwich to feed all of your guests. The sandwich is 10 1/2 feet long and you need to feed 14 people. If everyone gets a same sized piece how big is the piece going to be?
I NEED THIS ANSWER ASAP PLZ

Answers

Answer: [tex]1\dfrac{3}{4}\text{ feet}[/tex]

Step-by-step explanation:

Given: Length of sandwich = [tex]10\dfrac12\text{ feet}=\dfrac{21}{2}\text{ feet}[/tex]

Total people = 14

If everyone gets a same sized piece , then length of each piece should be

[tex]\dfrac{\text{ Length of sandwich}}{\text{Total people}}[/tex]

[tex]=\dfrac{\dfrac{21}{2}}{14}\text{ feet}\\\\=\dfrac{21}{2\times14}\text{ feet}\\\\=\dfrac{7}{2\times2}\text{ feet}\\\\=\dfrac{7}{4}\text{ feet}\\\\=1\dfrac{3}{4}\text{ feet}[/tex]

Hence, length of each piece = [tex]1\dfrac{3}{4}\text{ feet}[/tex]

tools used to physically represent numbers​

Answers

Answer:

The most frequently employed tools are traditional, which include physical ... These three tools can be used independently or conjointly, depending on the type of ... Learning tools can represent mathematical ideas in multiple ways, providing ... nature of concepts, such as numbers, thereby making them real and tangible,...

Step-by-step explanation:

Please help!! What Find the Error and explain why it is wrong!

Answers

Answer:

First image attached

The error was done in Step E, because student did not multiply [tex]2\cdot x -8[/tex] by the negative sign in numerator. Step E must be [tex]\frac{2\cdot x -5}{(x+4)\cdot (x-4)}[/tex].

Second image attached

The error was done in Step C, because the student omitted the [tex]2\cdot a \cdot b[/tex] of the algebraic identity [tex](a+b)^{2} = a^{2}+2\cdot a\cdot b +b^{2}[/tex]. Step C must be [tex]5\cdot x = x^{2}+4\cdot x + 4[/tex]

Step-by-step explanation:

First image attached

The error was done in Step E, because student did not multiply [tex]2\cdot x -8[/tex] by the negative sign in numerator. The real numerator in Step E should be:

[tex]3-(2\cdot x -8)= 3-2\cdot x+8 = 11-2\cdot x[/tex]

Hence, Step E must be [tex]\frac{2\cdot x -5}{(x+4)\cdot (x-4)}[/tex].

Second image attached

The error was done in Step C, because the student omitted the [tex]2\cdot a \cdot b[/tex] of the algebraic identity [tex](a+b)^{2} = a^{2}+2\cdot a\cdot b +b^{2}[/tex]. Step C must be [tex]5\cdot x = x^{2}+4\cdot x + 4[/tex]

And further steps are described below:

Step D

[tex]x^{2}-x+4 = 0[/tex]

Which according to the Quadratic Formula, represents a polynomial with complex roots. That is: ([tex]a = 1[/tex], [tex]b = -1[/tex], [tex]c = 4[/tex])

[tex]D = b^{2}-4\cdot a\cdot c[/tex]

[tex]D = (-1)-4\cdot (1)\cdot (4)[/tex]

[tex]D = -17[/tex] (Conjugated complex roots)

Step E

[tex](x-0.5-i\,1.936)\cdot (x-0.5+i\,1.936) = 0[/tex]

Step F

[tex]x = 0.5+i\,1.936\,\lor\,x = 0.5-i\,1.936[/tex]

To adopt a dog from a animal shelter, you must pay 08$ for vaccinations, 65$ to spray or neuter the dog, and 50$ for a wellness exam by a veterinarian

Answers

Answer:

ok, $65+$50+$8=123

Step-by-step explanation:

What type of function can be used to determine side length of a square if the independent variable is the square's area?

a. Cubic
b. Linear
c. Quadratic
d. Square root

Answers

kinda confused by the phrasing of the question but i think it should be D, square root, as to find the side length of a square you’ll have to square root the square’s area.
C.Quadratic or Quadratic Area

What is greater 1.036 1.306

Answers

Answer:

1.306

Step-by-step explanation:

1.3 is bigger than

1.03

Answer:

1.306 is greater

Step-by-step explanation:

In the ones place, the number one is equal for both numbers, so you move to the next number in the tenth place, which is .0 and .3 Three is greater than zero, which makes 1.306 greater than 1.036.

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