-2x+2y=6 and 7x+4y=23

Answers

Answer 1

Let's solve this problem step-by-step:

Let's set:

  [tex]-2x + 2y = 6 -- equation 1\\7x+4y=23 -- equation 2[/tex]

(equation1) * 2

  [tex]-4x+4y=12--equation3[/tex]

(equation 2) - (equation 3)

  [tex]11x = 35\\x= \frac{11}{11}--equation4\\x=1[/tex]

Plug (equation4)'s value of 'x' into (equation1)

  [tex]-2(1} )+2y=6\\-2+2y =6 \\2y = 6+2 =8 \\y =4[/tex]

Thus x= 1 and y = 4

Let's check:

 [tex]-2(1 )+2(4)=6\\2 +4 =6\\6=6\\ \\7(1)+4(4) )=23\\7+16=23\\ 23 =23\\[/tex]

Answer: x = 1 and y= 4

Hope that helps!


Related Questions

someone help
this dude abuses women
BRAINLY PLS HELP
SOMOENE CALL THE POLICE

his uername is :
3109959

Answers

Answer:

BOOST!!!!!!!

Step-by-step explanation:

EVERYBODY REPORT HIM

Answer:

I cant find him. how do I look him up

An outlier is a data value that differs greatly from other
values in a data set.
Complete the statements about the outlier rule.
If any values in the data set are
the upper boundary, then
those values are upper outliers.
If any values in the data set are
the lower boundary, then
those values are lower outliers.

Answers

Answers:

Box 1:  Greater thanBox 2: Less than

So,

If any values in the data set are greater than the upper boundary, then those values are upper outliers.If any values in the data set are less than the lower boundary, then those values are lower outliers.

The general rule is that the upper boundary is found computing Q3+1.5*IQR, where IQR is the interquartile range. Recall that IQR = Q3-Q1. The Q1 and Q3 are the first and third quartiles respectively.

Another rule is that the lower boundary is found by computing Q1 - 1.5*IQR

On a box and whisker plot, outliers are points that are not connected to the main plot itself. You can think of them as islands far from the mainland.

If any values in the data set are greater than the upper boundary, then those values are the upper outliers. If any values in the data set are less than the lower boundary, then those values are lower outliers.

What are Outliers?

If a number in distribution is more than 1.5 times the length of the box away from either of the upper and lower quartile of the distribution, then that number is said to be an outlier.  

The lower quartile is [tex]Q_1[/tex] and the upper quartile of distribution is [tex]Q_3[/tex]

Then lower boundary is given by [tex]=Q_1-1.5\times IQR[/tex]

The Upper boundary is given by  [tex]=Q_3+1.5\times IQR[/tex]

If any number or value of the distribution is greater than [tex]Q_3+1.5\times IQR[/tex] then that is called Upper Outlier.

Similarly, if any value or number of the distribution is less than [tex]Q_1-1.5\times IQR[/tex] then that is called Lower Outlier.

So the answers in the boxes are given by:

Box 1: Greater than Box 2: Less than

Learn more about Outliers here -

https://brainly.com/question/3631910

#SPJ2

find the gcf 27y^3z and 45x^2y

Answers

Answer:

Gcf 9

Step-by-step explanation:

Factors of 27y^3z = 1,3,5,9,27,y,y^2. Factors of 45x^2y = 1,3.5,9,15,45,x,y. CF = 1,3,5,9,y. GCF = 9.

Assume that the college in Offer #1 has a Cost of Attendance of $73,332. Which of the statements below comparing Offer #1 to Offer #2 is TRUE?

College #1 has a lower “cost of attendance” than College #2


Both College #1 and College #2 have the same “net price”


College #1 has a lower “net price” than College #2


College #1 has a higher “net price” than College #2

Answers

Answer:

Both College #1 and College #2 have the same “net price”

This is going by the fact that the equivalent money which happens to remain after all the deductions had been made are same. The gross amount, though quite different happens to be same in the available net amount for same education cost in both college.

Step-by-step explanation:

Help! I will mark brainliest

Answers

Answer:

[tex]4[/tex] x [tex]10^{6}[/tex]

Step-by-step explanation:

Answer:

4*10^6

Step-by-step explanation:

PLS HELP ! URGENT
will mark brainliest

Answers

Answer:

6^36

Step-by-step explanation:

6^9x4

6^36

Find the weekly wage before deductions for following data.
Hours worked Rate in dollars Weekly Wage
32.0
at $6.65
$
36.5
at $8.20
$
37.6
at $8.15
$
.
31.7
at $10.65
$
36.0
at $8.84
$

Answers

Answer:

Did I do something wrong because you never did text me back

Step-by-step explanation:

$34

at 9.00

what is the area of circle whose diameter is 32 inches? use π=3.14​

Answers

Answer:

803.84

Step-by-step explanation:

Radius is half of the diameter.

32/2=16

3.14*16^2=803.84

Answer:

803.84 in^2.

Step-by-step explanation:

Radius = 1/2 * 32 = 16

Area = 3.14 * 16^2

= 803.84.

A triangular prism has a height of 3 ft, a width of 5 ft, and a length of 8 ft. Find the volume.

a
90 ft3

b
60 ft3

c
150 ft3

d
120 ft3

Answers

Answer

120 ft3

Step-by-step explanation:

Length×Width×Height

(8ft×5ft×3ft)

5×3= 15 ft

15×8= 120 ft3

AWARDING BRAINIEST
Find the measures of the complement and the supplement of an angle with measure 50°.
A. complement, 130°; supplement, 40°
B. complement, 40°; supplement, 130°
C. complement, 140°; supplement, 230°
D. complement, 230°; supplement, 140°

Answers

the answer is B trust mee
B. Complement 40 and supplement 130

i will give brainliest to first correct answer!! what is the length of YZ? i will report if you give a fake answer

Answers

Answer:

25

Step-by-step explanation:

Resuelve el siguiente polinomio aritmético: 200 – (74 + (720/9) + 44 + 16 x (4 + 6 – 8 x 2) - (42/2) + 70) – 2

Answers

Answer:

47

Step-by-step explanation:

PEMDAS - Parenthesis, Exponential, Multiplication, Addition, Subtraction

200 – (74 + (720/9) + 44 + 16 x (4 + 6 – 8 x 2) - (42/2) + 70) – 2

200 – (74 + 80 + 44 + 16 x (-6) - 21 + 70) – 2

200 – (74 + 80 + 44 - 96 - 21 + 70) – 2

200 – 151 – 2

47

Who want to help me out

Answers

Answer:

A, B, and C

Step-by-step explanation:

Since there are no right angles, 89 is too close to 90 which is a right angles (which there are no angles even close to 90) and 94 would be too large since all angles are less than 90 degrees.

9 1/4 - 4 5/6
please answer and i answer for u

Answers

Answer:

the answer is 4

Step-by-step explanation:

Exact Form:
53/12

Decimal Form:
4.416

Mixed Number Form:
4 5/12

10. Mark and John both have jobs they work after school. Mark has a job mowing lawns that pays $7 per
hour. John works in an ice cream parlor. The table below shows how much money John earned each
day last week. Who has the better job?

Answers

Answer:

Mark and John both have jobs they work after school Mark has a job mowing lawns that pays $7 per hour. Jo John works in an ice cream parlor. Who has the better  John has the better job because he makes $0.50 more an hour than Mark c. mark  Copy And Paste Him onto all of ur brainly answers.

x-5y=2 and 4x+2y=8 using elimination

Answers

Answer:

y=0  x=2

Step-by-step explanation:

Answer:

x=2+5y

and

x=2-y/2

Step-by-step explanation:

2. How would you find the
rate of change in a table.
You would divide what
Over-what?...

Answers

Output (y) over input (x)
y/x

Help with this question
Solve 5x/2 > 7

Answers

Answer:

x > [tex]\frac{14}{5}[/tex]

Step-by-step explanation:

Given

[tex]\frac{5x}{2}[/tex] > 7 ( multiply both sides by 2 to clear the fraction )

5x > 14 ( divide both sides by 5 )

x > [tex]\frac{14}{5}[/tex]

Monica deposits $100 into a savings account that pays a simple interest rate of 3.8%. Paul
deposits $200 into a savings account that pays a simple interest rate of 2.5%. Monica says that
she will earn more interest in 1 year because her interest rate is higher. Is she correct? Justify your
response

Answers

Answer:

Paul

Step-by-step explanation:

Paul earn more than monica. Though he is getting less interest but because of his higher initial amount he is getting more return.

Computing the return of both

Monica return is  100*3.4%= $3.4 in a year

Paul return is 200*%2.2=  $4.4 in a year.

Answer:

3.3

multiply all the number in pairs then you have to add both number 3.3

A boat travels 10 miles per hour upstream and 16 miles per hour downstream. How fast is the​ current?

Answers

Answer: The speed of the current is 3 miles per hour.

Step-by-step explanation:

Let x = speed of boat , y= speed of current.

Given:

x-y=10         (Upstream)       ...(i)

x+y= 16   (Downstream)       ...(ii)

Adding (i) and (ii), we get

2x=26

⇒ x= 13

Put x=13 in (i), we get

13-y=10

⇒ y=13-10

⇒ y=3

Hence, the speed of the current is 3 miles per hour.

find the length of the line segment. the points are:
A: (-5,-4)
B: (-3,3)

Answers

it would be B -3,3........

Simplify.

8m+4n+7m−2n




A. 17mn

B. 15m + 2n

C. m + 2n

D. 15m + 6n

Please help me

Answers

Answer:

B

Step-by-step explanation:

Combine like terms then solve

Rodney is making three pizzas. The recipe says that, for one pizza, he needs 2 cups of flour, 2 teaspoons of instant active dry yeast, 2 cloves of garlic, 1 tablespoon of olive oil, and some other ingredients. Rodney is out of flour and goes to the store to buy a bag containing 20 cups of flour. How much flour will he have left over after making the pizzas?*

Answers

Answer:

+20+-+6+=+14+

He will have 14 cups leftover

Step-by-step explanation:

Simplify 7(2x + 3) please?

Answers

7(2x+3)
=14x+21 hope it helps

Answer:

14x + 6

Step-by-step explanation:

use the distributive property

Hope this helped! Have a nice day! Plz mark as brainliest!!! :D

-XxDeathshotxX

my question is in the picture as well as the problem.​

Answers

Answer:

Smallest to largest:

1 out of 10, 2/5, 2 out of 3, .75, 7/8

Step-by-step explanation:

An easy way to do this is to write each in decimal form

2/3 = .666666......

2/5 = .4

7/8 = .875

.75

1/10 = .10

Smallest to largest:

1 out of 10, 2/5, 2 out of 3, .75, 7/8

Which equals the ratio of sin A to the nearest hundredth?

Answers

Answer:

we cant answer if we dont know what sin A is

Pls help me I’ll give out brainliest please dont answer if you don’t know

Answers

Step-by-step explanation:

x=-10 is ur answer try it!

Answer:

2x=-20 or simplified version x=-10

Step-by-step explanation:

-8+3x=12+5x

   -3x.      -3x

-8 = 12+2x

-12=-12+2x

-20=2x

x=-10

plz plz plz help i don't know what to do it's due at midnight

Answers

AD=13 because it’s congruent to DC,
AC is equal to 24 because the half is 12 so you’ll be adding the half-and-half which is 24
AB is equal to 20 because it’s congruent to CB

SORRY CAN’T HELP WITH THE REST

please help!! ______

Answers

Answer: The answer is C.

Step-by-step explanation: The hypotenuse in special case isosceles right triangles is always x√2, x being one of the leg lengths since they are the same.

What is the volume of this rectangular prism?
3
cn
om
5
cm
4

Answers

Answer:

1

Step-by-step explanation:

[tex]v = whl[/tex]

1 = 5/4 x 4/3 x 3/5

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