ERROR ANALYSIS. Describe and correct the error in solving the system of linear equations.
2x+y=5 Equation 1
3x-2y=4 Equation 2
Step 1:
2x+y=5
y= -2x+5
Step 2:
2x+(-2x+5)=5
2x-2x+5=5
5=5
Please help!

Answers

Answer 1

Answer:

no clue but need points so ya

saving points up so i can give away 100 points away and u can be the first one to get it :)

Answer 2
You in high school or something this look hard

Related Questions

If you don’t know don’t answer-
THANKS
(10 points)

Answers

Answer:

120πcm²

Step-by-step explanation:

Since we are keeping this in terms of pi, you do not necessarily need a calculator. I will be doing my calculations as simple as I can.

First we need to figure out the area of the top circle and bottom circle.

We know that the formula for the area of a circle is:

πr²

So we need both circles, our formula becomes:

2πr²

Let's substite our radius in.

2 × π × 4² = 32πcm²

Now we need to find the area of the sides itself. Our formula here is:

2 × π × r × h

Let's substitute our radius and height in:

2 × π × 4 × 11 = 88πcm²

Let's now add both of these together:

88πcm² + 32πcm² = 120cm²

Remember to add your measurements!

Hope this helped!

Woah I’m yes so the person that answered that’s correct your smart

Is -30 degrees Celsius the same as 30 degrees Celsius? Why or why not?

Answers

Answer:

no its is not because one is postive and one is negative degrees celsius

Step-by-step explanation:

Answer:

no they’re not

Step-by-step explanation:

30 degrees celsius is around 86 degrees fahrenheit

-30 degrees celsius is around -22 degrees fahrenheit

theyre different

A _____________ ratio in any proportional relationship.

Answers

Answer:

a proportional relationship is look at the different values that the variables take on when one variable is one value, and then what is the And then take the ratio between them. and you see y to x, or y divided by x-- the ratio of y to x

If all the ratios are equal, then the relationship is proportional. If all the ratios are not equal, then the relationship is not proportional.

Ratios are proportional if they represent the same relationship. One way to see if two ratios are proportional is to write them as fractions and then reduce them. If the reduced fractions are the same, your ratios are proportional.

We have to get ratio of the two quantities for all the given values. If all the ratios are equal, then the relationship is proportional. If all the ratios are not equal, then the relationship is not proportional.

Writing an Equation to Represent a Proportional Relationship. An expression of equality of ratios is called a proportion. The proportion expressing the equality of the ratios A:B and C:D is written A:B = C:D or A:B::C:D. A is to B as C is to D.

Step-by-step explanation:

Proportions are the same ratios written in different forms. A proportional relationship is states that they are the same. For example, 1/2 and 6/12 have a proportional relationship, which means they are the same.

Males and females (ages 13–18) were surveyed to choose a favorite free-time activity: playing computer games, listening to music, or watching movies/TV.

The survey showed the following frequencies:
Females—playing computer games: 4; music: 20; watching movies/TV: 16
Males—playing computer games: 15; music: 12; watching movies/TV: 13

Which of the following is a correct two-way frequency table for the data?


Male and Female Leisure Time Activity Preferences
Computer Games Music Watching movies/TV Row totals
Female 4 20 16 40
Male 15 12 13 40
Column totals 19 32 29 80

Male and Female Leisure Time Activity Preferences
Computer Games Music Watching movies/TV Row totals
Female 0.05 0.25 0.20 0.50
Male 0.19 0.15 0.16 0.50
Column totals 0.24 0.40 0.36 1

Male and Female Leisure Time Activity Preferences
Computer Games Music Watching movies/TV Row totals
Female 0.10 0.50 0.40 1
Male 0.38 0.30 0.33 1
Column totals 0.24 0.40 0.36 1

Male and Female Leisure Time Activity Preferences
Computer Games Music Watching movies/TV Row totals
Female 0.21 0.63 0.55 0.50
Male 0.79 0.38 0.45 0.50
Column totals 1 1 1 1

Answers

Answer

the first one i think

Step-by-step explanation:

Answer:

A. I just took the test and got it correct.

Step-by-step explanation:

what is the y-intercept (1, 5)

Answers

I think it’s 2.5 Cuzz yes
The 5 because (x,y) is how coordinates are written

The equation y = 3.5x – 210 represents the profit made by a manufacturer that sells products for $3.50 each, where y is the project and x is the number of units sold. What is the profit in dollars when 80 units are sold?

Answers

Answer:

Jiwon is that u? Oh my god

there are 30 students in your class. Of the students in your class 12% are left handed what fraction of the students are left handed?

Answers

3/25

Hope this helps!!!!
Answer us 3.6/30 but sense it’s people it would be 3/30

Anita incorrectly wrote the equation z = w – 18 to describe the pattern in the table.
Choose the best description of Anita’s error.

Answers

D Anita only compared the values in the row for z.

The best description for Anita's error is z = 9w.

What is an equation?

An equation is a mathematical statement that is made up of two expressions connected by an equal sign.

Example:

2x + 4 = 9 is an expression.

We have,

From the table,

The pattern that describes the table.

Let the pattern be z = mw + c

Now,

(3, 27) and (5, 45)

m = (45 - 27) / (5 - 3) = 18/2 = 9

Now,

(3, 27) = (w, z)

27 = 9 x 3 + c

27 - 27 = c

c = 0

Now,

The pattern for the table.

z = 9w

Thus,

The patter for the table is z = 9w.

Learn more about equations here:

https://brainly.com/question/17194269

#SPJ2

Help is needed thank

Answers

Answer:

the answer for this question is C because if it says greater or equal to -5 then it would be D or it it says it is smaller or equals to -5 to it would be B or if it says it is smaller than -5 then it would be A

Answer: C

Step-by-step explanation: If the dot is filled in that means it is equal to. and it is telling you where it is starting at.

I'LL GIVE BRAINLIEST:

Answers

Answer:

B

Step-by-step explanation:

What is the prime factorization of 88?
A.8✖11
B.2✖4✖11
C.4✖4✖11
D.2✖2✖2✖11

Answers

The answer is d
Hope this helps :)

Answer:

D. 2✖2✖2✖11

Step-by-step explanation:

 To get the Prime Factors of 88, you divide 88 by the smallest prime number possible. Then you take the result from that and divide that by the smallest prime number. Repeat this process until you end up with 1.

88 ÷ 2 = 44

44 ÷ 2 = 22

22 ÷ 2 = 11

11 ÷ 11 = 1

Again, all the prime numbers you used to divide above are the Prime Factors of 88.

Room temperature ranges from 20°C to 25°C. Find the range of room temperature in °F. Use the formula F – 32 = 1.8C to convert from the Celsius scale to the Fahrenheit scale.

Answers

Answer:

68 to 77

Step-by-step explanation:

I MULTIPLIED as ur formula

68°F to 77°F i solved ising your formula!

please. Help ASAP ASAP I will give brainlist

Answers

Answer:

3 R5, 3.5

Step-by-step explanation:

Answer:

3 R 1

Step-by-step explanation:

3x2=6

7-6= 1 is your remainder

A submarine starts at 0 units and has groups of 3 floats and groups of 4 anchors attached.
Using these groups of floats and anchors, write as many different expressions as you can that would make the submarine's final position -5 units.
write three expressions

Answers

Answer:

-12

Step-by-step explanation:

The three equivalent expressions of the final position are:

-(5)(3) - (2)(4), -(5)(3) + (-2)(4) and -(5)(3) + (2)(-4)

From the question,

Each float takes a step of 5 unitsEach group takes a step of 2 units

So, the final position of the submarine is:

Final = -(5)(3) - (2)(4)

The minus "-" sign implies that the submarine moves downwards i.e. it sinks

The equivalent expressions of the final position are:

-(5)(3) - (2)(4), -(5)(3) + (-2)(4) and -(5)(3) + (2)(-4)

Read more about equivalent expressions at:

https://brainly.com/question/2972832

anyone know how to complete this table need helpp asapp please

Answers

Answer:

Step-by-step explanation:

Ytigr

The y side of the table should be:

-4, 3, 10, 17, 24

Hope this helps:)

Sandy spent 4% of x hours at her part-time job.what is x if 4% of x is about 22 hours? Explain how you estimated and which property of equality you used to find x. Solve for x
x = _______

Answers

The answer is 550.

Step by step explanation:

4/100•25=100/100
22•25=550
The answer would be 550

This might be a bit difficult, but you can do it!

Answers

Answer: B

Step-by-step explanation:

North and North and South and South can't connect.

To have a magnetic effect North and South have to connect.

B has north and south together, so that is the correct answer

Answer:

the answer is B

Step-by-step explanation:

because all the other answer choices are wrong b is

n,s,n,s,n it will only work that way  because north side will on,yl go with the south side

A teacher surveyed her class after they had taken a vocabulary test. Eighteen of the students claimed they had studied at least one hour for the test. The remaining twelve students admitted that they had not studied for the test at all. The test results (expressed as a percent) for the two groups are shown below.


Studied: 88, 100, 94, 79, 92, 100, 95, 83, 89, 99, 100, 91, 89, 95, 100, 93, 96, 84

Did Not Study: 82, 72, 45, 91, 58, 83, 65, 87, 90, 77, 73, 89

Calculate the range and interquartile range for each set of data.
Using complete sentences, compare the data sets based on your results in part A.

Answers

You add all of the numbers and the divid by the amount of number for example 88+ ......... = 1667 and then you divid by 18 because that is how many numbers there are equaling 92.61% so 92.61% STUDIED

Answer:

horrible scores!

Step-by-step explanation:

pls answer the picture

Answers

Answer:

8 because if you take a row away from the total, you have 8, and that's how many are hidden

Step-by-step explanation:

Answer: there are eight blocks hidden in the cup.

Step-by-step explanation:

seeing that we don’t know how many blox are in the cup The cup would be a variable in this situation.

x + 4 = 12 cubes

to find your answer you would’ve solve for X, a.k.a. the cup.

x + 4 = 12 cubes

first you would do the inverse operation of addition so instead of adding four  you subtract four from four, so that it cancels out.  Whatever you do to one side you have to do to the other side so you would have to subtract 4 from The previous 12 cubes.

X = 12 - 4

and your final answer would be 8 cubes

x = 8

there are eight blocks/cubes hidden in the cup

Please answer the ones i have not!

Answers

Answer:

y = 2/3 (34) + 20 = 34

y = (3 x -2)^2 +17 = 54

y = 2.5 (0.6) + 5.8 = 7.3

Step-by-step explanation:

to make it clear on the solution box you are going to write -----

#2) 34

#3) 54

#4) 7.3

Help plz :((
I'll give brainliest

Answers

For A. the muddy water will slowly begin to decrease because it's been left out in the sun, some of the water will begin to evaporate.

(I don't know about B, or C, but I tried my best on A.)

Make sure to put in your own words. :)

Please help me I just need the ticket price.

Answers

$167.... That an expensive tickets

Please provide explanation IF you can. Very Confused!!

Answers

Really simple the circle has specific dividing corners that will add on to the 26 add all those to get your inches

Answer:

41.63

Step-by-step explanation:

Circumference = 2pi(r)

26.5 / 2 = 13.25 (radius)

2pi(13.25) = 83.25 (circumference of the full circle)

83.25 / 2 = 41.625 or 41.63

For what value of b, a polynomial in standard form, equivalent to the product of
(X^2-10x+6)(2x+b):

a. Does not contain x^2
b. Has equal coefficients for x^3 and for x

Answers

B the answer is Has equal coefficients for x^3 and for x
i think the answer is b

A store bought a camera for $300 and sold it for $714. What was the markup percentage?

Answers

Answer:The markup is 40% of the $25 cost, so the markup is:

(0.40)(25) = 10

Then the selling price, being the cost plus markup, is:

25 + 10 = 35

The item sold for $35.

Step-by-step explanation:

I need some help! I can’t figure this out, nor do I understand it. My question is:

The locations of some buildings at the county fair are shown on the coordinate plane provided. Three food booths will be added so that they are closer to the Flowers building than to the other buildings.
Describe three locations for the food booths using ordered pairs.

Answers

Answer:

Three locations for the food booth would be ( 2,3)- fowls . ( 3 , 4 )- textiles . ( 0 , 2 )- flowers . ( 4 , 3 ) live stock.

Step-by-step explanation:

please dont be  mad if this is wrong,   i hope this helps! :)    

The letters of the alphabet are written on cards and placed in a brown paper bag. What is the probability of drawing a vowel, NOT replacing it, and then drawing a Z?

Answers

Answer:

0.1%

Step-by-step explanation:

Good Luck

must include explanation !!

Answers

Answer:

18.2 feet^3 of water

Step-by-step explanation:

First let's find 80% of the full capacity, which is 24. To do that, multiply 24 x 0.8, which is 19.2.

Now how much space to the fish take up? There are 8 fish, and each one takes up 1.5 cubic INCHES. 8 x 1.5 = 12 cubic inches, but we need cubic feet. Luckily, there are 12 inches in 1 foot so it'll be a clean and simple 1 foot. The "cubic" part only shows that we're measuring volume.

The 80% capacity - fish capacity = how much water is needed. That will be 19.2 - 1 = 18.2

That's it! Hopefully this helped!

Find the slope of the line.

A. -1/6

B. 1/6

C. -6

Answers

the answer is C or -6
it’s a because you go left 1 unit & 6 units up but since the line is going down it’s a negative slope

At a cookout, Mrs. Crawford makes 8/9 pound of chicken, plus 1 pound for each guest. Is the relationship between the number of guests and pounds of chicken proportional? Explain.

Answers

Answer:

No, this rel. is not proportional because of the addition involved ("plus 1 lb for each guest").

A proportional rel. features mult. only.

Step-by-step explanation:

et x represents the number of guest and y represents the number of pounds of chicken made,

Given,

The number of pounds of chicken for each guest = 1,

So, the number of pounds for x guests = x,

Also, the number of pounds already made =

Thus, the total pounds of chicken,

Since, a relation is called proportional if the variables are directly proportional,

That is, the line obtained by the relation passes through the origin,

Since, if x = 0, y = 0,

∴ Line  does not pass through the origin.

No, it is not a proportional relation. Thus, the total pounds of chicken, ... Hence, given relation is not proportional.
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