Eva is showing her work in simplifying (7.3 − 7.2) − 3.8 + 3.7. In which step did Eva make an error?

Step 1: (7.3 − 7.2) − 3.8 + 3.7

Step 2: 7.3 + (−7.2 − 3.8) + 3.7 (commutative property)

Step 3: 7.3 − 11 + 3.7

Step 4: 7.3 + 3.7 − 11 (commutative property)

Step 5: 11 − 11 = 0

Step 2; she wrote commutative instead of distributive
Step 4; she wrote commutative instead of distributive
Step 4; she wrote commutative instead of associative
Step 2; she wrote commutative instead of associative

Answers

Answer 1

Answer:

I think step 4

Step-by-step explanation:

Answer 2

Answer:

Step 2; she wrote commutative instead of associative

Step-by-step explanation:

i took the test the other one is wrong


Related Questions

how many whole numbers are between 0 and 1999

Answers

there are 2000 whole number

A triangle has one side which is 2 meters long and another side which is 5 meters
long. Write a value that could be the length of the third side, in feet.

Answers

Answer:

23 feet > m ; or m must be less than 23 feet.

Step-by-step explanation:

Let's call this final, or third side, m.

According to the Triangle Inequality Theorem, or the Gator Theorem - as some call it - "The sum of the lengths of any two sides of a triangle is greater than the length of the third side."

So,

[tex]2+5>m\\7>m[/tex]

So, we know that m must be less than 7 meters! However, we are NOT done. We must convert M's measurement of meters into feet.

A meter is about 3.28 feet, so using that conversion...

[tex]3.28 * 7 = 22.96\\[/tex]

That is about 23 feet :)

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At a school, the ratio of boys to girls is 4 : 5. the school has 900 students. How many girls are there?

Answers

Answer:

180

Step-by-step explanation:

The answer is 180 because:

[tex]5*180=900[/tex]

Help please! No file attachments please, only write your answers in response to question.

Answers

this is the correct answer for the problem
AFK,CGJ,DEL,BHM

Please help i rlly need help

Answers

Answer:

Light, Volume

Step-by-step explanation:

The volume of sound; the loudness or softness of a musical passage.

ANSWER ASAP!!!
The two-way table displays data collected from a random group of college students. Which statements are correct? (frequencies rounded to nearest tenth)
A) The relative frequency of "like snowmobiles" and "like skateboards" is 76.2%. B) The relative frequency of "like snowmobiles" and "do not like skateboards" is 15.6%. C) The row conditional relative frequencies of "like snowmobiles" and "like skateboards" is 76.2%. D) The row conditional relative frequencies of "do not like snowmobiles" and "like skateboards" is 28.1%. E) The column conditional relative frequencies of "do not like skateboards" and "do not like snowmobiles" is 28.6%.

Answers

Answer:

a)45/125

b)25/125

c)80/125

d)45/125

e)10/35

Step-by-step explanation:

hope it is correct

The statements which are correct are B, C and E.

What is Relative Frequency?

Relative frequency is defined as the ratio of the frequency by the total count of the data values.

We have to find the relative frequency in each option.

A) Frequency of "like snowmobiles" and "like skateboards" = 80

Total count = 160

Relative frequency of "like snowmobiles" and "like skateboards" = 80 / 160 = 0.5 = 50%

B)  Frequency of "like snowmobiles" and "do not like skateboards" = 25

Total count = 160

Relative frequency of "like snowmobiles" and "do not like skateboards" = 25 / 160 = 0.15625 = 15.6%

C) Frequency of "like snowmobiles" and "like skateboards" = 80

Total row frequency = 105

The row conditional relative frequencies of "like snowmobiles" and "like skateboards" = 80 / 105 = 0.7619 = 76.19% ≈ 76.2%

D) Frequency of "do not like snowmobiles" and "like skateboards" = 45

Total row frequency = 55

The row conditional relative frequencies of "do not like snowmobiles" and "like skateboards" = 45 / 55 = 0.81818 = 81.82%

E) Frequency of "do not like snowmobiles" and "do not like skateboards" = 10

Total column frequency = 35

The column conditional relative frequencies of "do not like skateboards" and "do not like snowmobiles" = 10 / 35 = 0.2857 = 28.57% ≈ 28.6%

Hence the correct statements are B, C and E.

Learn more about Relative Frequencies here :

https://brainly.com/question/30466267

#SPJ3

what is the center of (x+5)^{2}+(y-4)^{2}=121?

Answers

Answer: (-5,4)

Step-by-step explanation:

(9x+4) what is the answer hurry taking a test

Answers

Answer:

9x+4

Step-by-step explanation:

remove the parentheses

(9x+4) is equivalent to 9x+4
Just remove the parenthesis since there is no possible way to find the actual amount (number)

Answer : 9x+4

A pizza was cut into 4 equal pieces. If Maddie ate 14 of the pizza, and Marco ate 24 of the pizza, how many whole pieces of the pizza are left?

Answers

Answer:

1/4

Step-by-step explanation:

A pizza was cut into 4/4,

Maddie ate 1/4 of the pizza making it: 3/4

Then Marco ate  2/4 making it 1/4

There's your answer !

Sorry if it's incorrect.

Answer:

The answer is 10/4!

Step-by-step explanation:

I know this because my teacher Ms.Curly always tell me see how many pieces of pizza that were eating and then subtract 24 - 14 = 10 then you have 10/4 that is your answer!!

Find the difference:
3 4/6 - 1/6
O A. 21 / 1
O B. 273
O c. 3 1 / 3
N-
D. 34
E. 3
O E. 3

Answers

Answer:

3 1/2

Step-by-step explanation:

4 1 3

_ - _ = _

6 6 6

Then we simplify. 3 3 1

_ ÷ = _

6 3 2

Then just add your 3 and there 3 1/2 is your asnwer

The difference between 3 4/6 and 1/6 will be 3 1/2.

Given numbers are:

(1)[tex]3\frac{4}{6}[/tex] [tex]=\frac{22}{6}[/tex]

(2)[tex]\frac{1}{6}[/tex]

What is a fraction?

A fraction is a part of a whole.

The Difference between [tex]3\frac{4}{6}[/tex] and [tex]\frac{1}{6}[/tex] will be = [tex](\frac{22}{6} )-(\frac{1}{6} )[/tex]

[tex]=\frac{22}{6} -\frac{1}{6}[/tex]

[tex]=\frac{21}{6}[/tex]

[tex]=\frac{7}{2}[/tex]

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

Hence, the difference between 3 4/6 and 1/6 will be 3 1/2.

To get more about fractions visit:

https://brainly.com/question/78672

Find the gradient of the line segment between the points (-1,3) and (1,-2).
Give your answer in its simplest form.

Answers

Can someone please on this , I need help on this too !!

-5/2

Step-by-step explanation:

-2-3/1-(-1) = -5/2

The vertices of ΔJKL are J(–3, –2), K(1, 4), and L(4, 2). Which coordinate pairs are vertices of D5(ΔJKL)? Select all that apply.

Answers

Answer:

J' = (-15, -10)

K' = (5, 20)

L' = (20, 10)

Step-by-step explanation:

Given the coordinates J(–3, –2), K(1, 4), and L(4, 2)

D5(ΔJKL) means we need to dilate the coordinates by a constant of 5

To do that, we will multiply the coordinates by a value of 5

D5(ΔJKL)

J' =  (5(–3), 5(–2)),

J' = (-15, -10)

K' = (5(1), 5(4))

K' = (5, 20)

L' = (5(4), 5(2))

L' = (20, 10)

Solve for X.

Then, Solve for Y.

Finally, Solve for Z.

Answers

Answer:

x = 6

y = 6[tex]\sqrt{2}[/tex]

z = 12

Step-by-step explanation:

the ratio of sides in a 30-60-90° triangle is, respectively, 1 : [tex]\sqrt{3}[/tex] : 2

therefore, 'x' must have a measure of 6

which means the hypotenuse must have a measure of 12

other triangle is a 45-45-90° triangle whose sides are in a ratio of 1 to [tex]\sqrt{2}[/tex]

this means that 'y' must be 12/[tex]\sqrt{2}[/tex] which is 6[tex]\sqrt{2}[/tex]

'z' must be 6[tex]\sqrt{2}[/tex] · [tex]\sqrt{2}[/tex] = 12

Anything help plz
Mr. McGill is solving the following problem: 42x=163. Mr. McGill set 2x=3 and got x=32 as his answer. Tell the mistake Mr. McGill made and tell the correct answer.

Answers

Answer:

3.88

Step-by-step explanation:

Given that

42x = 163

It set 2x = 3

and x = 32

We need to tell the mistake and mentioned the correct answer

if we solve the above equation i.e.

42x = 163

x = 3.88

Hence, in this way it should be calculated

The same would be considered and relevant

Hence, the correct answer is 3.88

Write the following expression using rational exponents. ^7√y^4= y^ The numerator of the exponent is Select a Value The denominator of the exponent is Select a Value.​

Answers

Answer: The Numerator of The Exponent =4

The Denominator of The Exponent= 7

Step-by-step explanation:

Jay has an album that holds 500 hockey cards. Each page of the album holds 5 hockey cards. If 17​% of the album is​ empty, how many pages are filled with hockey cards​?

Answers

Answer: 83

Step-by-step explanation: 17% of 500 is 85. If 17% is empty, that means that you'd take away that 15%. 500 - 85 = 415. If each page holds 5 cards, we need to split those cards up between the pages. 415/5 = 83, so 83 pages will be used.

easy algebra question below first correct answer gets brainliest

Answers

Answer:

x  ≈ ± 3.87

Step-by-step explanation:

Given

x² - 3 = 12 ( add 3 to both sides )

x² = 15 ( take the square root of both sides )

x = ± [tex]\sqrt{15}[/tex]

Then x ≈ 3.87 or x ≈ - 3.87 ( to 2 dec. places )

A car travels about 63 feet in one second. At this speed about how many feet will the car travel in 7 seconds.

Answers

Answer:

441 feet

Step-by-step explanation:

First we need to make this word problem into just numbers. Since we know feet per second (fps) we will multiply this by the given amount of seconds to find the answer

63 × 7

Now solve

After solving you should get 441 which is the answer

                                                      *EXTRA*

I have included a graph but it is hard to use since it is such a narrow line but still helpful since there is the equation included

Pleaseee help me I’m stuck

Answers

Answer:

11

Step-by-step explanation:

Solve the equation for x.

Answers

Answer:

2x+5=4x+1

5=2x+1

4=3x

x=1.3333333 or 1 1/3

Step-by-step explanation:

Can anyone please help me to do this with steps

Answers

Hello, I Am BrotherEye

Answer:

I Will Help You!!

But I require More imformation Step-by-step explanation:

Bsmskak the help tie shoes tha ent t this be j294

Working alone, Darryl can mop a warehouse in 11 hours. Elisa can mop the same warehouse in 9
hours. If they worked together how long would it take them?

Answers

Answer:

≈ 5 hours

Step-by-step explanation:

Time needed if they work together:

1 / (1/11 + 1/9) = 1/ (20 / 99) = 99/20 ≈ 5 hours

Your classmate says that the solutions to the given inequality are x > -2. Look carefully at the work. Should your friend have reversed the inequality​ symbol? Explain. Then solve the inequality correctly.

Please don't send those annoying files, I'm not trying to get a virus on my laptop. Please, if you can, just write out the steps/answer(s).

Answers

Answer:

x < -2 (No, he shouldn't have reversed the inequality symbol).

Step-by-step explanation:

Given the algebraic expression;

19 - 2(1 - x) < 13

Opening up the bracket, we have;

19 + (-2*1) + (-2*-x) < 13

19 + (-2) + (2x) < 13

19 - 2 + 2x < 13

17 + 2x < 13

Rearranging the equation, we have;

2x < 13 - 17

2x < -4

Dividing both sides by 2, we have;

x < -2

Hence, your friend shouldn't have reversed the inequality symbol (sign).

Note: you should only flip the inequality symbol (sign) when you're dividing by a negative number such as -2.

For example, if we had re-arranged the equation as;

17 - 13 < -2x

4 < -2x

Dividing both sides by -2, we have;

4 > x

what the answer please

Answers

Answer:

The right option should be c

Step-by-step explanation:

The measure of (OH-)

What is 72 out of 96?

Answers

Answer:

75%

Step-by-step explanation:

72 is 75% of 96

If Westville has 15,200 households, predict the number of households that will have exactly 3 computers? Please answer I need help

Answers

Answer:

1140 households

Step-by-step explanation:

The results of a computer survey of 80 households in Westville are shown in the table.

So from the table we can see that 6 households have 3 numbers of computers.

So the probability is [tex]$\frac{6}{80}$[/tex]

Therefore, the probability of number of houses from a total of 15,200 houses to have exactly three computers is = [tex]$\frac{6}{80} \times 15200$[/tex]

                                                          = 1140 houses

be smart and help me please i can’t fail again i will give branliest

Answers

Answer:

28%

Step-by-step explanation:

12+34+7=2856

Then, 2856/100 to get the percentage.

what is the sum of the following equation 16/100 + 6/10=
a. 10/100
b.22/100
c. 36/100
d.76/100

Answers

Answer:

d

Step-by-step explanation:

convert 6/10 to the same denominator as the other fraction (100) by multiplying the entire fraction by 10 resulting in 60/100 then add 16/100

Answer:

D) 76/100

Step-by-step explanation:

16/100 + 6/10 = ?

16/100 + 60/100 = ?

16/100 + 60/100 = 76/100

Mila and samuel had an equal amount of money for shopping. Mila spent $42 and Samuel spent $36. After that, Mila had 1/2 of what Samuel has left. How much money Milla had initially?

Answers

Answer:

Mila had $48 initially

Step-by-step explanation:

Let the amount of money they had be x

Mila spent $42; what is left would be x-42

Samuel spent $36: what is left would be x-36

So, what Mila had left is half of what Samuel has; that would be;

x-42 = 1/2(x-36)

2(x-42) = x -36

2x-84 = x -36

2x - x = 84 -36

x = $48

A bag has 6 red rocks, 1 orange rock, 4 blue rocks, 1 white rock, and 7 yellow rocks. You randomly pull a rock from the bag, keep it out and then pull out another one. What is the probability of not getting a orange and then not getting a orange?

Answers

Answer: 17/19

Step-by-step explanation:

Number of red rocks = 6

Number of orange rock = 1

Number of blue rocks = 4

Number of white rock = 1

Number of yellow rocks = 7

Total number of rocks = 19

Probability of not getting a orange the first time will be (1 - 1/19) = 18/19.

Probability of not getting an orange the second time will be: (1 - 1/18) = 17/18

Probability of not getting an orange on both occasion will be:

= 18/19 × 17/18

= 17/19

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