Mathematics Middle School

PLEASE ANSWER THIS FAST WILL MARK BRAINLIEST AND 15 POINTS

Barry simplified 5x – 3y – x + 6z, as shown.

5x – 3y – x + 6z

5x – x – 3y + 6z

5 + 3yz

Describe two mistakes Barry made, and find the correct solution.
__________________________________________________

Answers

Answer 1

Answer:

Step-by-step explanation:

we have that

5x – 3y – x + 6z

5x – x – 3y + 6z------> this step is correct

5 + 3yz------> is not correct

because

1) 5x-x=5---> is not correct

the correct is

5x-x=4x

2) -3y+6z=3yz-----> is not correct

the correct is

-3y+6z=3*(2z-y)

therefore ,

the correct solution is

4x+3*(2z-y)

Related Questions

If sally is 5 feet and 2 inches . how many inches is she?

Answers

Answer:

62 inchs

Step-by-step explanation:

5Feet= 60 inchs + 2 is 62

Answer: she is 62 inches

Step-by-step explanation:

You would figure out how many inches in a foot which is 12 then times it by 5 then add 2

how did they get this answer? please help!

Answers

Answer:

The formula for calculating speed is:

S (speed) = D (distance) *divided by* T (time)

or just simply without labels:

S=D/T

In the problem u'r doing 9/4 (hope i see it correct) represents D, 1/2 represents T, and 4.5 represents S

Hope this helps)

Someone help me with this ASAP

Answers

Answer:

Step-by-step explanation:

Bag A contains 9(5/9) pounds of coffee

Bag B contains 9(2/3) pounds of coffee

Which bag contains less coffee?

          ( 2/3) is the same as (6/9)

Now that the denominators are the same, if we compare the numerators, 5 is less than 6 (5 parts of 9 is less than 6 parts of 9)

Bag A contains less coffee than bag B

9(5/9) < 9(2/3)

A)   0.73

B) 21.93

C) 7.67

5&5-----------5

10&14------------2

20&36-----------2

Answer:

???? Me so COnFusEd

Step-by-step explanation:

A 2- pound package of shredded cheese is $6.98. A ½ - pound package of shredded cheese is $1.98. What is the difference in the cost per pound between the larger and smaller packages of shredded cheese?

Answers

$3.89 is your and everyone else’s answers

The difference in the cost per pound between the larger and smaller packages of shredded cheese will be $0.47.

What is an expression?

Mathematical expression is defined as the collection of the numbers variables and functions by using operations like addition, subtraction, multiplication, and division.

Given that;

A 2- pound package of shredded cheese is $6.98.

And, A ½ - pound package of shredded cheese is $1.98.

Now,

Since, A 2- pound package of shredded cheese is $6.98.

So, A 1- pound package of shredded cheese =  $6.98 / 2

                                                                     = $3.49

And, A ½ - pound package of shredded cheese is $1.98.

So, A 1 - pound package of shredded cheese = $1.98 x 2

                                                                      = $3.96

Thus, The difference in the cost per pound between the larger and smaller packages of shredded cheese = $3.96 - $3.49

                                                            = $0.47

Therefore, The difference in the cost per pound between the larger and smaller packages of shredded cheese will be $0.47.

Learn more about the mathematical expression visit:

brainly.com/question/1859113

#SPJ2

Which situation represents a proportional relationship?

a
The cost of purchasing a basket of oranges for $1.30 per pound plus $5.00 for the basket.
b
The cost of purchasing grapefruit for $1.80 per pound with a coupon for $1.00 off the total cost.
c
The cost of purchasing apples for $1.75 per pound plus a shipping fee of $0.16 per pound.
d
The cost of purchasing peaches for $7.00 per box of peaches with a delivery charge of $3.00.

Answers

I’m pretty sure it is C? But I’m not 100% sure
I think its either c or d im not sure though but it might be c

Which of the following are true to subtract fractions?

A Keep the denominators different, subtract the numerators, subtract the denominators
B Find the LCM, subtract the numerators, subtract the denominators
C Find the LCM, subtract the numerators, keep the denominators the same
D Find the GCF, subtract the numerators, keep the denominators the same

Answers

Answer:

I think it is A

Step-by-step explanation:

Because I am learning division in school right now and I asked my teacher if she could explain how to subtract in division and she said most of the stuff on a so that is why I think it A

Answer:

I think it is C

Step-by-step explanation:

Because you are supposed multiply and then subtract

pls help if you answer correctly i will give you brainliest and i will give a reward of a lot of points you just have to check back at my response

Answers

Answer:

15.5 i believe

Step-by-step explanation:

I think the answer to this problem is 11.2 but can somebody double check me real quick.
Here is the question:
Lin purchases 4 apples for $5. At this rate, how much would it cost her for 14 apples?

Important information:
One apple is worth 0.80.
One dollar is worth 1.25 apples.

Answers

Yeah youre good because
.80 times 14 is 11.2
The answer is 11.2 I believe

Which expression can be used to find the number of liters in 15 quarts?
15/1 x 0.95/1
15/1 x 0.95/1
15/1 x 1/0.95
15/1 x 1/0.95

Answers

I’m not sure but I will say 15/1 0.95

Answer:

the 3rd one

Step-by-step explanation:

Help! please!! (Math)

Answers

27,375 because 300/4 = 75 x 365 = 27,375
I think it’s 12. Hope it helped.

Find the constant of proportionality in the equation y=rx

R = ______

Answers

R is 1 because in the table nothing has change.

Answer:

1

Step-by-step explanation:

y=Rx

5.8=r (5.8)

Divide both sides by 5.8 to get r on its own and the answer is 1.

Can anyone help me with this one

Answers

Answer:

I think the slope would be 10/1

Step-by-step explanation:

You can kinda tell because the line goes up 10 and right one

Answer:

no because rise over run. it should be 10.

Step-by-step explanation:

the y axis is spaced out by 10 every unit and the x axis is by 1.

she goes over 3 and up 30.

rise(y) over run(x)

30÷3 =10

10/1

Y over X.

How do I solve number 4 and 5?

Answers

Answer:

Ummm...

Step-by-step explanation:

Answer:

4)71-x=180

x=109

5)60-x=180

x=120

Step-by-step explanation:

4) 32+72=109, 109-180=71, 71-180=109

71 is the last measure of the triangle so you just subtract that from 180.

5)180-60=120

Fran drank 3/4 liter of juice. How many quarts of juice did she drink? (1 L = 1.06 qt.). Set up a porportion and solve.

Answers

In a survey of 425 students in a school, it was found that 115 drink apple juice, 160 drink orange juice and 80 drink both apple as well as orange juice.
It is 0.08833333 . It may even be wrong

(02.06)
The table below shows that 1 day equals 24 hours. Notice that 12 hours is one-half of that. Use the table to help you determine how many days are equal to 54 hours.

1 day
24 hours
12 hours 12 hours
(3 points)

1 and 1 over 2. days
2 days
2 and 1 over 4. days
2 and 1 over 2. days

Answers

Answer:

1 and 1 over 2

Step-by-step explanation:

Write and solve an equation to find the measure of the angle between Oak St and the proposed Jordan Hwy.

Answers

Answer:I believe it is 31 degrees

Step-by-step explanation:

The following are daily high temperatures (℉) in Auckland, New Zealand:
75 67 83 90 79 74 70 71 72 78 76 67 66 80 77 77 84 74
1. Using the data above, make a stem-and-leaf plot.

Answers

Step-by-step explanation:

78 76 67 66 80 77 77 84 74

correct them

Answer:

6   6, 7, 7

7    0, 1, 2, 4, 4, 5, 6, 7, 7, 8

8    0, 3

9    0

Step-by-step explanation:

If you don't know how to make a stem and leaf plots this how. First you will draw a T-chart then you put the first integer or 10th place number on the left and the ones place number on the right.

Find an equation parallel to the line, y= -3x -1

Answers

Answer:

y = 3x -2

Step-by-step explanation:

If the line is parallel, that means it has the same slope. The given equation had a slope of 3, so the new line must also have a slope of 3.

You can plug the given coordinates into the slope-intercept form with a slope of 3 to find your answer.

y = m*x + b

7 = 3*3 + b

7 = 9 + b

-2 = b

y = 3x -2

I Hope This Helps :D

Y=3x-2 the other persons explanation

Solve the equation.


b – 160 = 23
A. b= 60
B. b= 140
C. b=183
D. b= 206

Answers

Answer:

C

Step-by-step explanation:

183-160=23 or 160+23=183

Hope this helps!

i will filipin give brainlyest if right

Answers

I don’t know if this is wrong or right but my guess is 14. I’m so sorry if it is wrong though. Have a good day!
I think the answer is 14 if am wrong it could be 15

This is due like in 5 minutes. So help me pleasee.

Answers

The slope of the graph is 2

Answer:

m = 2

Step-by-step explanation:

m = [tex]\frac{y_{2} -y_{1} }{x_{2} -x_{1} }[/tex]

( - 4 , - 3 )

( - 5 , - 5 )

m = [tex]\frac{-5+3}{-5+4}[/tex] = 2

How many solutions does this equation have?

5t = 5t + 5

Answers

Answer:

There are no solutions, there are no values of T that make this equation true.

Step-by-step explanation:

Therefore, there are no solutions.

Hope it helps!

I wil give brainlyest Which equation represents this situation?


Charlie worked 1.5 hours less than Dirk. Together, they worked a total of 25 hours. Dirk worked h hours.



h−2.5=25


h+(h+1.5)=25


h+(h−1.5)=25


h−1.5=25

Answers

If h is the number of hours worked by dirk but Charlie worked 1.5 less than Dirk, then option h + (h-1.5) = 25

Answer: h-1.5=25

Step-by-step explanation:

what is the opposite of -2/3? explain.

Answers

2/3 cause you are not changing the number itself so the opposite would just change the negative to a positive.

Help!!! PLLLLEASE help me ASAP!!!!

Answers

1. One is 2
2. Two is 2
3. Three is 4
4. Four is 3

PLEASE HELP THIS HOMEWORK IS DUE TODAY!

Answers

Answer:

a. No - 32/50 is 0.64 and 8/10 is 0.8

b. Yes, both 3.5/6.25 and 14/25 equal 0.56

Step-by-step explanation:

Answer:

A is no B is yes

Step-by-step explanation:

Please answer these questions!
Thanks a lot!

Answers

When you have an exponent to an exponent they multiply together

Answers

1=x^8y^12
2=2x^12
3=3c^30
4=4x^9
5=-2x^20
3. 243c^30

4. 64x^9

5. 16x^20

A man's shoe size is approximately three times his foot length in inches, minus twenty-two. What would be the equation that could represent his shoe size, y, in terms of inches, x.

Answers

Answer:

(3y)x - 22

Step-by-step explanation:

mans shoe size 3 times his foot

-22

(3y)x - 22

(3y) x -22 the mans shoes size 3 times his foot so -22. Hoped this help have an amazing day ❤️

there are 25 pigs and chickens on a farm. if there are 90 legs counted altogether, then how many of each animal are there?

Answers

Answer:

115

Step-by-step explanation:

25+90

Answer: There are 24 pigs and 1 chicken

Step-by-step explanation:

4=pigs

2=chicken

pigs have 4 legs and chicken have 2 so 24*4= 88 so add 2 and you get 90.

Hope this helped!

A cubehas a mass of 9 grams and each side is 3 cm3. What is the density of the sample?

a.0.33 g/mL

b.36g/m

Lc.3g/mLd.18g/mL


(I know this aint math but no one answers science stuff -_-)

Answers

I believe your answer would be A. :)
Your answer is A person above me is correct
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