3x + y = 6
4r + 2y = 8​

Answers

Answer 1

Answer:

Step-by-step explanation:

3x + y = 6

4x + 2y = 8

-6x - 2y = -12

4x + 2y = 8

-2x = - 4

x = 2

3(2) + y = 6

6 + y = 6

y = 0

(2,0)


Related Questions

How does scientific idea become a theory ?

Answers

Answer:

A scientific idea can become a theory when you have enough prove to back it up and when it is supported by other scientists.

Question 3
Round to the nearest tenth.
8.001 - (-3.4062) =

Answers

8.001 + 3.4062 = 11.4072
We add because subtracting a negative changes the sign to a positive. The tenths place is the first decimal place. Therefore, the answer is:
11.4

Between which two consecutive whole numbers does
[tex] \sqrt{75} [/tex]
lie? Fill out the sentence below to justify your answer and use your mouse to drag
[tex] \sqrt{75} [/tex]
to an approximately correct location on the number line.​

Answers

8 and 9, since square root of 64 is 8 and square root of 81 is 9, it is known that square root of 75 is between 8 and 9

Question 9 of 10
Given the lease terms below, find the total lease cost, assuming that the
deposit is nonrefundable.
Terms:
• Length of lease: 24 months
• MSRP of the car: $21,400
• Purchase value of the car after lease: $17,100
• Down payment: $1500
• Monthly payment: $479
• Security deposit: $350
• Acquisition fee: $700
O A. $10,794
OB. $11,100
O c. $14,046
O D. $14,678

Answers

The total lease cost assuming that the deposit is nonrefundable is $14046.

What is Meant by Lease Cost?

The term "Leasing Costs" refers to all fees paid or benefits granted to a tenant under an existing lease or a new lease, including I commissions for leasing or brokerage services, (ii) direct payments, tenant improvement allowances, work letters, or free rent, and (iii) rent allowances or rent credits.

Given:

Length of lease: 24 months

MSRP of the car: $21,400

Purchase value of the car after lease: $17,100

So, Monthly payment= $479

So, Monthly payment after 24 month

= 11496

Thus, total lease cost =  Down payment + Security deposit + Acquisition

                                                                                                             fee

                                                               + payment for 24 months

Total lease cost = 1500+ 350+ 700+ 11496

                           = $14046

Hence, the lease cost is $14046.

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Please help!!!!!
Solve the equation 5(2y - 1) - 2(3y)= 1

Answers

Answer:

y = 3/2

Step-by-step explanation:

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

First we use distributive property:

10y - 5 - 6y = 1

because 5 × 2y = 10y

and -2 × 3y = -6y

Now we combine the like terms:

4y -5 = 1

because 10y - 6y = 4y

Now we have to send the -5 to the other side. (when we send it to the other side it becomes positive because right now it is negative)

4y = 1 + 5

Again we combine the like terms:

4y = 6

(because 5 + 1 = 6)

Now we have to send the 4 to the other side because we need to get the y value. (when we send it to the other sidr it will be divided)

y = 6/4

and we simplify:

y = 3/2

And we cannot simplify or do anything else. So that is the answer.

Hope that helped!


Which of the following statements is false?

-|-5| = -5
-(-5) = 5
-|5| = -5
|-5| = -5

Answers

A.

Two negatives form a positive,
+5 ≠ -5

PLZZZ HELP!!! Why is it helpful to break down the total amount you would need to save on a monthly, weekly, or daily basis?

Answers

Answer:

it makes the goals easier to reach

Step-by-step explanation:

you dont want to say you need 1,000 dollars.. you would want to say you are going to save 5 dollars a week till you reach it.

5 benefits of breaking down ones periodic savings have been listed below.

Breaking down the amount one will need to save on a daily, weekly or monthly basis is simply called budgeting.

Now, budgeting is very important because it helps to do the following;

- Helps to ensure you spend money appropriately on things that you really need and not just wants.

- Helps you to effectively monitor your spending habits/patterns.

- Helps you to meet your financial goals.

- Helps you to make good decisions on things that involve finance.

- Helps you to monitor your progress in savings or interest as the case may be.

Read more at; brainly.com/question/22532334

Solve the equation for x.
3(6x - 1) = 12

Answers

Answer:

soln

18x-3=12

18x=15

so,x=5/6

y = -x + 2 on a graph

Answers

2 is your y and you go down and one to the right for -x think of it as -1/1

y = -4x + 10 y = -6x + 16 Substitution

Answers

Answer:

The answer to this problem is x = 3 and y = -2.

Step-by-step explanation:

To solve this problem, we first have to remember how to solve problems using substitution.  We first solve one equation completely in terms of another variable.  In this case, this has already been done for us - the first equation is in the form y = f(x).  Next, we should substitute this "value" or function for y into the other equation.  This process is modeled below:

y = -4x + 10

y = -6x + 16

If we substitute, we get:

-4x + 10 = -6x + 16

Now this is a simple one variable equation that we can solve easily.  First, we should add 6x to both sides, giving us:

2x + 10 = 16

Then, we should subtract 10 from both sides, yielding:

2x = 6

Finally, we can divide both sides by 2 to get:

x = 3

Now, we must plug in this value for x into one of our original equations (it doesn't matter which one we choose) to solve for the other variable, y.

y = -4x + 10

y = -4(3) + 10

y = -12 + 10

y = -2

Therefore, the answer to this problem is x = 3 and y = -2.

Hope this helps!

Answer:

x = 3

y = -2

Step-by-step explanation:

y = -4x + 10       first equation

y = -6x + 16        second equation

from the second equation:

6x = -y + 16

x = (-y + 16) / 6       third equation

substituying the value of the third equation into the first equation:

y = -4(-y+16)/6 + 10

y - 10 = -4(-y+16(/6

6(y-10) = -4(-y+16)

6*y + 6*-10 = -4*-y -4*16

6y - 60 = 4y - 64

6y - 4y = 60 - 64

2y = -4

y = -4/2

y = -2

from the third equation:

x = (-y + 16) / 6

x = (-(-2) + 16) / 6

x = (2+16)/6

x = 18/6

x = 3

Check:

from the first equation:

y = -4x + 10

-2 = -4*3 + 10

-2 = -12 + 10

How to study Math by yourself at home efficiently?

Answers

Answer:

Just do what you did in school

Step-by-step explanation:

Like example you did algebra exercise 1 2 and 3

do the same at home by yourself

These are some tips I use to study math

Pay attention in class - if you pay attention to each and every detail in class you will understand the concept better .
Try taking math notes in class . All you need is a book and a pen . Write down everything that is new to you and write down formulas that you might need. This way you know what is in the chapter . And when you feel something doesn’t seem right you can ask your teacher. During your exams you can easily review these notes and you don’t have to search in the textbook for certain points or formulas. Use different colors and decorate your notes but don’t spend time in that because you might use these notes for only some time .

Solve the sums every day -solve the sums in your textbook. Solve the exercises of math and try to use the internet to get different sums that are similar to the concept you are learning. This will repeat the concept and you can understand it better. Try to do math each and every day. First do 10 sums and improve to do 20-30 sums each day . This way you know what sums you need to work on and what you already know.

Don’t be afraid to ask your questions- if you don’t understand some questions or doubts then feel free to ask . If you don’t ask soon enough you might lose your chance .

Read the textbook- read through the textbook and mark the important things you have to remember . Also make a layout of the chapter that includes the topics that you learnt in the chapter and their page numbers and so when it’s your exam all you need to do is look at the layout and if you don’t know a topic you can review it easily.

During the exam all you need to do is open you textbook check the important points and formulas and the layout of the chapter. If you don’t understand any concept then it will be easy to revise it . If you made notes you can look at them and revise quickly.
Before the exams gather all the sums together and separate them into two categories
1. The easy ones
2. The hard ones

Solve the easy ones first and try to understand the hard ones . This way you know the concept in the textbook questions and the same concept will be put into another question with the same meaning during the exam/test

You can try to solve online worksheets and tests based on the topic you are learning so tHat the concept is repeated in your head . Also try doing quizzes .

This should help you study math much easier and quicker.
Try to give at least one hour to math .

7 Tips for Maths Problem Solving that my friend uses are -
Practice, Practice & More Practice. It is impossible to study maths properly by just reading and listening. ...
Review Errors. ...
Master the Key Concepts. ...
Understand your Doubts. ...
Create a Distraction Free Study Environment. ...
Create a Mathematical Dictionary. ...
Apply Maths to Real World Problems.

Hope this helps you

What is a squared 9 in algebraic form?

Answers

ANSWER: 9 squared in algebraic form is 9^2
9^2 equals 81

Identify the coefficient in the expression x + 4.
A x
B 1
C 0
D 4

Answers

Answer:

1

Step-by-step explanation:

The coefficient is the number in front of the variable.  Since there is not a number written, there is an implied 1

x+4

1x+4

The coefficient is 1

What is the value of f(2) for f(x)=2x5−8x4+3x3−4x2+9x−1?(1 point)

Answers

Answer:

-39

Step-by-step explanation:

just took the quick check

Evaluate j/k-0.2k when j=25 and k=5

Answers

Answer:

[tex]4[/tex]

Step-by-step explanation:

[tex] \frac{j}{k} - 0.2k = \frac{25}{5} - 0.2(5) = 5 - 1 = 4[/tex]

Share is 4 times as old as Marcos. If the sum of their age is 45, which equation could best be used to find their ages?

Answers

Answer:

5x = 45

Step-by-step explanation:

x represents marcos

4x represents Share

5x = 45

x = 9

4x = 36

Share is 36 and Marcos is 9

Answer:

4x+x =45

Step-by-step explanation:

x would be marcos, since we do not know his age, and share is 4x that amount, so you would have 4x(shares age) plus x(marcos age) to get your answer.

Is 6/5 an irrational number

Answers

Answer:

yes

Step-by-step explanation:

Answer: Yes it is, because this is written as a simple fraction. A non-simple fraction would be something like 2 1/2. Having that extra whole number in front makes it complex!

Step-by-step explanation:

i need help ! someone plz help me, thank you.

Answers

Answer: I think it's C

Step-by-step explanation: hope it helps

I think the correct answer is C

Bags of sugar come in 3 sizes. Small bag: A 175 g bag costs 45p. Medium bag: A 420 g bag costs £1.13. Large bag: A 1.2 kg bag costs £2.99. Find the cost per gram for each bag of sugar. Round your answers to 3dp.

Answers

Answer:

a 3.889

b 3.735

c 4.013

Step-by-step explanation:

a. 45p is 0  175/45=3.889

b  420/113= 3.735

c1.2kg= 1200g /299 =4.013

/ means divide

What are the factors for x(5x+4)-(5x+4)

Answers

Answer:

(5 x + 4) (x - 1)

Step-by-step explanation:

Factor the following:

x (5 x + 4) - (5 x + 4)

Hint: | Pull a common factor out of x (5 x + 4) - (5 x + 4).

Factor 5 x + 4 out of x (5 x + 4) - (5 x + 4), resulting in (5 x + 4) (x - 1):

Answer: (5 x + 4) (x - 1)

P and Q have coordinates (-2,3) and (5,4) respectively. Reflect P inthe X-axis to P' and Q in tha Y-axis to Q' .Find the distance between P'Q'.​

Answers

Step-by-step explanation:

Hey, there!!

Let's simply work with it,

The given coordinates are, P(-2,3) and Q(5,4).

Now, finding the P' and Q'.

Reflection on x- axis .

P(x,y)---------> P' (x,-y)

P (-2,3)----------> P'(-2,-3)

Now, let's find Q'

Reflection on y-axis.

Q(x,y)----------> Q'(-x,y)

Q(5,4)---------> Q'(-5,4)

Now, The points are P'(-2,-3) and Q'(-5,4)

By distance formulae,

[tex]P'Q' = \sqrt{( {x2 - x1)}^{2} + ( {y2 - y1)}^{2} } [/tex]

Putting their values,

[tex]P'Q' = \sqrt{( { - 5 + 2)}^{2}( {4 + 3)}^{2} } [/tex]

[tex]P'Q' = \sqrt{( { - 3)}^{2} + ( {7)}^{2} } [/tex]

Simplifying them we get,

[tex]pq = \sqrt{58} [/tex]

Therefore, the distance between P'and Q' is root under 58 units.

Hope it helps...

In the picture below

Answers

Answer : The value of x is 100.

Step-by-step explanation :

According to the question, the FH makes a line in which point G is present in between the line FH.

The diagram is shown below.

Given:

FG = (2x) meters

GH = 1000 meters

FH = 1200 meters

Now we have to calculate the value of x.

As we know that:

FH = FG + GH

Now putting all the given values in this expression, we get:

1200 = 2x + 1000

1200 - 1000 = 2x

200 = 2x

x = 100

Therefore, the value of x is 100.

is 7.0001 a repeating decimal or a terminating decimal or a integer?

Answers

Answer:

7.000l is a terminatin decimal.

Step-by-step explanation:

It is an terminating decimal because it stops right at 1, and the one is not repating too. If it was repeating it would be a repating decimal. We know it's not also an integer because we dont see a ngegative sign next to the seven.  

Therefore, 7.0001 is a terminating decimal.

Is 6p-8 monomial, binomial, or trinomial

Answers

Answer:

Binomial

Step-by-step explanation:

how many terms are in the equation?

2 = Binomial

Answer: Binomial

Step-by-step explanation:

It contains two terms in 6p-8 (6p, and 8)

Thus it is binomial

Monomial: contains one term

binomial: contains two terms

trinomial: contains three terms

Hope this helps!! :)

Please let me know if you have any question


If 8f + 7 - 2f = 16, what
is the value of 12 f + 1?

I need help

Answers

Distribute and simplify to get 6f=9. This means f=1.5 plug 1.5 in for 12f and get 18. 18+1=19

[tex]8f+7-2f=16\\6f=16-7\\6f=9\\f=\frac{9}{6}[/tex]

We know f, now we want the 12f+1

Therefore, Substitute f = 9/6 in 12f+1

[tex]12(\frac{9}{6})+1\\ = 2*9+1\\=18+1\\=19[/tex]

If you are wondering where 2*9 comes from, it comes from the 12(9/6) and 12 is divided by 6 then we get 2 and multiply the 9 as we get 2*9.

Solve the following systems using the substitution method.

Answers

Answer:

Step-by-step explanation:

Step-by-step explanation:

1).

2x + 8y = 12 ......... Equation 1

x - 2y = 0 .............. Equation 2

Make x the subject in equation 2 and substitute it into equation 1

That's

x = 2y

We have

2(2y) + 8y = 12

4y + 8y = 12

12y = 12

Divide both sides by 12

y = 1

Substitute y = 1 into x = 2y

That's

x = 2(1)

x = 2

The answers are

x = 2 , y = 1

2.)

x + y = 7......... Equation 1

2x + y = 5 ......... Equation 2

Make y the subject in equation 1 and substitute it into equation 2

We have

y = x - 7

2x + x - 7 = 5

3x = 7 + 5

3x = 12

Divide both sides by 3

x = 4

Substitute x = 4 into y = x - 7

y = 4 - 7

y = - 3

We have the answers as

x = 4 , y = - 3

3).

y = -1/2 + 1 ......... Equation 1

2x + 3y = 6 ........ Equation 2

From equation 1

y = 1/2

Substitute y = 1/2 into Equation 2

So we have

2x + 3(1/2) = 6

2x + 3/2 = 6

2x = 6 - 3/2

2x = 9/2

Divide both sides by 2

x = 9/4

The answers are

x = 9/4 , y = 1/2

4).

2x - 1/3y = - 9.......... Equation 1

-3x + y = 15 ........... Equation 2

Make y the subject in equation 2 and substitute it into equation 1

That's

y = 15 + 3x

2x - 1/3( 15 + 3x) = - 9

2x - 5 - x = - 9

x = - 9 + 5

x = - 4

Substitute x = - 4 into y = 15 + 3x

That's

y = 15 + 3(-4)

y = 15 - 12

y = 3

The answers are

x = - 4 , y = 3

Hope this helps you

Simplify the Expression *

Answers

Answer:

16√3

Step-by-step explanation:

(4√6)(2√2)

4*2√6*2

8√12=8√4*3=8*2√3

16√3

The width of a rectangle measures (3.1s – 1.6) centimeters, and its length
measures (7.2s – 4.6) centimeters. Which expression represents the perimeter, in
centimeters, of the rectangle?

Answers

Answer:

Expression for perimeter of rectangle is:

[tex]\bold{Perimeter = (20.6s-12.4)\ centimeters}[/tex]

Step-by-step explanation:

Width of rectangle is given as [tex]( 3.1 s - 1.6 )[/tex] centimeters and

length  of the rectangle is given as [tex](7.2s - 4.6)[/tex] centimeters.

To find:

The expression to represent the perimeter of rectangle in centimeters.

Solution:

First of all, let us have a look at the formula to calculate the perimeter of a rectangle.

Perimeter of a polygon is equal to sum of all the sides.

In rectangle, we have a total of 4 sides, 2 sides equal to the width and 2 sides are equal to the length of rectangle.

Therefore, perimeter of a rectangle is equal to twice the sum of width and length of the rectangle.

So, formula:

[tex]Perimeter = 2(l+w)[/tex]

Where [tex]l[/tex] is the length of rectangle and

[tex]w[/tex] is the width of rectangle.

Putting the values of length and width as given in the question statement to find its perimeter:

[tex]Perimeter = 2((3.1s-1.6) +(7.2s-4.6))\\\Rightarrow Perimeter = 2(10.3s-6.2)\\\Rightarrow \bold{Perimeter = (20.6s-12.4)\ centimeters}[/tex]

The marked price of an article is Rs.2080. After allowing d% discount and levying
(d-2)% VAT the cost of the article becomes Rs.1997.84. Find the rate of VAT?​

Answers

Answer:

13%

Step-by-step explanation:

Given:

MP = 2080Discount = d%VAT = (d-2)%Cost = 1997.84

Apply discount:

2080 - d% = 2080*(1 - 0.01d)

Add VAT:

2080*(1 - 0.01d) + (d - 2)% 2080*(1 - 0.01d) * (1 + (d -2)/100)2080*(1 - 0.01d) * (0.98 + 0.01d) = 1997.84(1 - 0.01d)(0.98 + 0.01d) = 1997.84/20800.98 + 0.01d - 0.0098d - 0.0001d² = 0.9605 - 0.0001d² + 0.0002d + 0.98- 0.9605 = 00.0001d²- 0.0002d - 0.0195 = 0d² - 2d + 195 = 0

Solving the quadratic equation we get:

d = 15

Then

VAT rate = 15 - 2 = 13%

alex is 61 inches tall. what is her height in feet ?

may you please show the equation that goes with it

Answers

Answer:

5 feet 1 inches

Step-by-step explanation:

if 1 foot is 12 inches.

Then, 60 ÷ 12

= 5

So, 61 inches tall = 5 feet 1 inches.

The answer is 5 feet 1 inches.

The Height of Alex in feet is 5.0833 feet.

To convert inches to feet, we divide the number of inches by 12 since there are 12 inches in 1 foot.

Let's denote the height of Alex in inches as H in and her height in feet as H ft.

H in = 61 inches

H ft = ?

The equation to convert inches to feet is:

H ft = H_ in / 12

Substituting the value of H in into the equation, we have:

H = 61/12

H ft ≈ 5.0833 feet

Therefore, Alex's height is 5.0833 feet.

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