5x -4y = -23

-5x + 9y =8

Answers

Answer 1

Answer:

Let's solve for x.

5x−4y=−23−5x+9y

Step 1: Add 5x to both sides.

5x−4y+5x=−5x+9y−23+5x

10x−4y=9y−23

Step 2: Add 4y to both sides.

10x−4y+4y=9y−23+4y

10x=13y−23

Step 3: Divide both sides by 10.

10x

10

=

13y−23

10

x=

13

10

y+

−23

10

Answer:

x=

13

10

y+

−23

10

Step-by-step explanation:

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Related Questions

Factor completely: f(x) - 2x^2 - 3x - 2

Answers

Answer:

(2x+1) (x-2)

Step-by-step explanation:

Answer:

Step-by-step explanation:

Logan bought a baseball bat on a trip. The baseball bat is 29 inches long.




Logan thinks he can bring the baseball bat home in his suitcase. Is he correct? Use your understanding of the Pythagorean Theorem to explain your answer.
The length of the suit case is 24 inches while the height is 18 inches
Give me the answer in i will give you brainliest

Answers

Step-by-step explanation:

Given that,

The length of a baseball is 29 inches

Logan thinks he can bring the baseball bat home in his suitcase.

The length of the suit case is 24 inches while the height is 18 inches. We can find the diagonal (x) of the suitcase using Pythagorean Theorem as follows :

[tex]x^2=24^2+18^2\\\\x=\sqrt{900} \\\\x=30\ \text{inches}[/tex]

The diagonal of the suitcase is 30 inches. It means that he can put the baseball bat in the suitacse easily.

answer this for me please gotta hurry!! 4x10^-2

Answers

Answer:

1/25 or 0.04 in decimal form

Step-by-step explanation:

i just used a calculator-

True or False? The blue radius is perpendicular to the green chord.

Answers

The statement that the blue radius is perpendicular to the green cord is false

From the complete question,

The blue radius does not bisect the green chord

This means that the blue radius and the green chord do not meet at 90 degrees

Since both lines do not meet at 90 degrees, then they are not perpendicular

Hence, the statement that the blue radius is perpendicular to the green cord is false

Read more about radius and chords at:

https://brainly.com/question/1869643

Nicole deposits $300 into an account that pays simple interest at a rate of 3% per year. How much interest will she be paid in the first 5 years

Answers

Answer:

the answer is 45%

y-step explanation:

if not sorry :(

You have $40 to spend on coffee and tea. Graph the equation 8x+4y=40 , where x is the number of bags of coffee and y is the number of boxes of tea. Then find the maximum number of bags of coffee you can buy.

Answers

It do be 5 gimme Brainlyest

1. -1 + 2

2. 1 + (-2)

3. -1 - 2
-
4. 1 - (-2)

Answers

Answer:

1. 1

2. - 1

3. - 3

4. 3

Is the answer.
1.) 1
2.) -1
3.) -3
4.) 3

which is greater -13 or -16?

Answers

Answer:

-13

Step-by-step explanation:

Carter bought 0.1 pounds of peanuts and 0.2 pounds of raisins. How many pounds of snacks did he buy in all?

Answers

Answer:

0.3 lbs

0.1 + 0.2 =0.3

you're welcome

Answer:

Carter got 0.3 pounds of snacks

I just need help with the graphing the rest of them are all drop downs lol​

Answers

Begin by putting a point on -2 on the y axis. Next, repeat going up 3 and 1 to the right.

6. Just because a diet is popular does not mean it is safe and effective. True False

HELP FAST!
Not really math its PE

Answers

Answer:

true

Step-by-step explanation:

the answer is true hope this helps

Bryant collected 2 pounds of newspaper for the recycling drive. Luther collected 3 7/8 times as much newspaper as Bryant. How many pounds of newspaper did Luther collect?

Answers

Answer:

Luther collected 7.75 pounds of newspaper

Step-by-step explanation:

2 times 3.875

7.75

Brainlest to whoever can tell me what pi stands for

Answers

Hi!

Pi: The number π is a mathematical constant. It is defined as the ratio of a circle's circumference to its diameter, and it also has various equivalent definitions. It appears in many formulas in all areas of mathematics and physics. It is approximately equal to 3.14159.

Hope this Helps!

Yours Truly,

~~~PicklePoppers~~~

Evaluate the expression 8n for n = 1 5/12

Answers

Answer

8n=34/3

Step-by-step explanation:

1 5/12=17/12

17/12*8/1=136/12=34/3

what is the slope of (12,22) (-20,19)

Answers

Answer:

3/32

Step-by-step explanation:

The slope is found by

m = ( y2-y1)/(x2-x1)

   = ( 19-22)/(-20-12)

   = -3/-32

   = 3/32

what properties is used in this equation 4(x + 5) = 40

Answers

Answer:

Distributive property

What is the slope of a line passing through the points (-1, 3) and (4, -7)

A. -2
B. -4/3
C. 3/4
D. 2

Answers

Answer:

A

Step-by-step explanation:

-7-(3)/4-(-1)=-10/5 which is -2

Use the slope formula y2-y1/x2-x1 to solve

BEST ANSWER WILL BE MARKED BRAINIEST
Are same side interior angles complementary or supplementary?
Are same side exterior angles complementary or supplementary

Answers

Answer:

Side interior angles are most definitely supplementary

Step-by-step explanation: I'm pretty sure that other guy just guessed

Diane earns $14,500 a year. She pays 11% of her gross income for federal, state, and local taxes. She is taxed at the FICA rate of 7.65%. She has 3.5% of her income withheld for personal deductions. She is paid biweekly. What is her net pay for each pay period? Round to nearest cent.

Answers

Answer:

$434.16346

Step-by-step explanation:

Given that :

Gross earning= $14500

Federal, state and local taxes = 11%

0.11 * $14500 = $1595

FICA tax rate = 7.65%

0.0765 * 14500 = $1109.25

Personal deduction :

3.5% * 14500

0.035 * 14500 = $507.50

Total deduction :

$(1595 + 1109.25 + 507.50)

= $3211.75

Net earning : $(14500 - 3211.75) = 11288.25

Since she is paid bi weekly:

Number of biweeks in a year = 52 /2 = 26

Number of payments per annum = 26

Hence,

Net pay per period :

11288.25 / 26

= $434.16346

=

Ava has to attend at least 45 physics classes every semester to earn attendance points. If she can attend 3 classes every week, write an inequality that determines the minimum number of weeks Ava should attend physics classes. PLEASE ANSWER!

Answers

Answer:

45= 3x

Step-by-step explanation:

45 classes= 3 classes × x weeks

can someone help me?

Answers

Answer:

I hope this helps!

Step-by-step explanation:

1. M is .25

b is 20

so

y= .25x+20

2. y= 3x+2

A hypothetical population consists of eight individuals ages 14, 15, 17, 18, 19, 21, 28, and 30 years What is the probability that a person in this population is a teenager? What is the probability of selecting a participant older than 30? What is the probability of selecting a participant who is at least 20 years old?

Answers

Answer:

1)0

2)3/8

Step-by-step explanation:

2)total number of participants who are at least 20 years old = 3

Total number of participants= 8

How could i improve my math skills? i'm so freaking bad at math i've been in a f for over a month and don't remember anything i've learned over the years. i'm in 10th grade and feel like imma fail or have to dropout of school to be a failure at life. >:(
how can i get better b4 i get kicked outta my homeschool and put into brick and mortar and get the 'rona.

Answers

Flash cards to study

A hierarchy of quadrilaterals is shown. Name the figures that complete the hierarchy. Number the figures in your response to indicate where in the diagram they belong.​

Answers

A hierarchy of quadrilaterals is shown. Name the figures that complete the hierarchy. Number the figures in your response to indicate where in the diagram they belong.

Jackson is riding his bike in a 150 mile race. If he wants to keep the same pace for the first five hours then go as fast as he can the last 20 miles. How many miles should he travel in the first hour of his race?

Possible answers:
A. 18 miles
B. 22 miles
C. 24 miles
D. 26 miles

Answers

I think A or B I’m so sorry if this is wrong

Answer:

Step-by-step explanation:

It is b

answer to question below

Answers

what is the flat rate for shipping? it would be 13n and then + or - the number given (flat rate for shipping)
hope this helped :)

Answer:

13n+20

Step-by-step explanation:

Each book costs $13 with a flat rate of $20

You pay $13 for each book, which will be n. And aside from that you also pay for shipping, which will be another $20

So the correct answer is: 13n+20

what is 30=2.5(10-2x)

Answers

Answer: if u looking for x it - 1

Answer:

x=-1

Step-by-step explanation:

30=25-5x

5=-5x

-1=x

PLEASE HELPPP I WOULD REALLY APRECIATE IT♥

Answers

Answer:

C. x = -2

Step-by-step explanation:

Tony weighs T pounds. Tony’s father Jim weighs 4 pounds less than twice the weight of Tony. Write an expression to represent Jim’s weight.

Answers

Answer:

2T - 4 = J

Step-by-step explanation:

J = Jim

T = Tony

Jim is 4 less than twice the weight of Tony = 2T - 4 = J

Chen is bringing fruit and veggies to serve at an afternoon meeting. He spends a total of $28.70 on 5 pints of cut veggies and 7 pints of cut fruit. The food cost is modeled by the equation 5 v plus 7 f equals 28.70, where v represents the cost of one pint of cut veggies and f represents the cost of one pint of cut fruit. If the cost of each pint of fruit is $2.85, what is the approximate price of a pint of veggies? (Round to the nearest cent, as needed.)
PLEASE ANSWER ASAP!!!!

Answers

Answer:

Step-by-step explanation:

you suck

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