- 2x + 3y = 14
x + 2y = 7

Answers

Answer 1

Answer:

          x = -1 ,   y = 4

Step-by-step explanation:

x + 2y = 7   ⇒  x = 7 - 2y

- 2x + 3y = 14

- 2(7 - 2y) + 3y = 14

-14 + 4y + 3y = 14

-14 +7y +14 = 14 +14

   7y = 28

     y = 4

x = 7 - 2y = 7-2(4) = 7 - 8 = -1


Related Questions

how can you find the number halfway between 123 and 321? ​

Answers

Add them togetherr then divide it

Answer:

222

Step-by-step explanation:

Find the average of the 2 numbers , that is

average = [tex]\frac{sum}{count}[/tex] = [tex]\frac{123+321}{2}[/tex] = [tex]\frac{444}{2}[/tex] = 222

Combine the following and write in standard form.
(7 + 5) + (-6 - 81)

Answers

Answer:

without exponents its -75 since i thought those last 2 were exponents.

In the figure, m∠2 = 70. Find the measure of each angle.

Answers

Answer:

35 is the answer

Step-by-step explanation:

Answer:

Step-by-step explanation:

1-     angle number 3 is 70

2-    angle number 5 is 110

3-    angle number 8 is 110

4-    angle number 1 is 110

5-    angle number 4 is 110

6-    anle number 6 is 70

√-90=ai√b what is the value of a and b?

Answers

Answer:

what is this topic in math?

How many solutions does the system below have?
2x + 6y = 12
y =
= -x + 2
1 solution
2 solutions
no solutions
infinite solutions

Answers

Answer: 1 solution

An augmented matrix for the system is
[2,6,12;1,1,2] where we will call the first two columns A and the third b. A is linearly independent since it is row equivalent to the identity matrix, which tells us that for any b there will be a unique solution (x,y).

what is 7,200 increased by 22%

Answers

22% of 7,200 is 1,584
It is 8,784

I need help like rn plzzzz Laura rents a movie for a flat fee of $2.00 plus an additional $0.50 for each night she keeps the movie. Choose the cost function that represents this scenario if x equals the number of nights Laura has the movie. c(x) = 2.00x + 0.50 c(x) = 2.00 + 0.50x c(x) = 2.50x c(x) = (2.00 + 0.50)x

Answers

Answer: c(x) = 2.00 + 0.50x

Step-by-step explanation:

Since they already charged her $2.00 leave that alone. They charge her .50 per night, x represents the number of nights she rented the movie. thus the answer is c(x) = 2.00 + 0.50x.

The value of 26 – 16 divided by 2+3•4 is
30
32
06
22
PLEASE HELP!!!!!!

Answers

Answer:

30.

Step-by-step explanation:

x = y, If y=9, then x = 9

what property is this?

Answers

Answer:

The Transitive Property for x and y

Step-by-step explanation:

A cookie recipe for 60 cookies calls for 4 cups of flour. How much flour is needed to make 90 cookies?

Answers

Answer: 6 cups

Step-by-step explanation:

60 cookies = 4 cups

60 + 30 = 90, and half of 60 is 30. So half of 4 cups is 2 cups.

4 cups plus 2 cups is 6 cups!

Answer:

6 cups

Step-by-step explanation:

because if you / the 60 by 4 you would see that 1 cup = 15 cookies. Then add 15 till you get to 90

Solve the following system of equations for all three variables.

x
+
2
y
+
z
=
−x+2y+z=


0
0

x
+
2
y
+
3
z
=
−x+2y+3z=


0
0
x

5
y

2
z
=
x−5y−2z=

Answers

Answer:

using ve as the rate of a sudden she is not the one who thought she would not be able talk about it its wierd and get close to Jayden and dont ttl that he would never break a gun and put her on a train to get her out and yeah I was going for sure and I will tell you

2. Hanna made 5 hit out of 13 during her first baseball game. What percentage of hits did she make?
A. 50% B. 38% C. 18% D. 31%

Answers

Answer:

B. 38%

Explanation:

Given parameters:

Number of hits = 5hit

Total hits = 13

Unknown:

Percentage of hits shed made = ?

Solution;

The percentage of hit made = [tex]\frac{number of hits }{Total hits}[/tex] x 100

input the parameters and solve;

        Percentage of hit made = [tex]\frac{5}{13} x 100[/tex]

       Percentage of hit = 38%

Percentage of hit = 38%

If I is parallel to m, solve for x and y (7y-20)(5x-38)(3x-4)

Answers

did you have a graph with this question?

Which of the following points represents a number that is both rational and an integer?

Answers

Answer:

Where a and b are both integers. Example. The number 4 is an integer as well as a rational number. As it can ... Which of these rational numbers are integers?

Step-by-step explanation:

Solve the equation. 1 2 = 11 2​

Answers

No solution because they don’t equal eachother

The school store marks up the price of all items by 30% before selling to
the community. If the store purchases sandals for $50.25, what will be th
price of the sandals after markup? Use a proportion to solve this problem

Answers

Answer:

$65.325 or $65.33

Step-by-step explanation:

When looking for a percentage in a number, you want to multiply that number by the percentage. Remember that all percentages are to the hundreth power, or 0.00. So if you want to find 30% of 50.25, you multiply it by 0.30 or 0.3. After calculating that you will come up with 15.075 as the percentage. Since the store is marking the price up, you add it to the original price. So your equation is 50.25 + 15.075 =?. After calculating that, you get the answer 65.325. That is only half of your answer though because, when dealing with money, you always round to the nearest hundredth. So when you round 65.325, you get 65.33 which should be the correct answer.

Name a Transversal.
Helpppp?

Answers

"I" is the transversal because a transversal is a line going through 2 lines in the same plane at two distinct points.

Solve for x: three halves plus one half times x equals two x need answer plz:(

Answers

x equals one

3/2+1/2x=2x

3/2+1/2=2x

2=2x

1=x

Answer:

2 = x

Step-by-step explanation:

3/2 + 1/2 times x = 2x

x by itself = 1x

Subtract 1x

3/2 + 1/2 times 1x - 1x = 2x -1x =

3/2 + 1/2 = 1x

3/2 + 1/2 = 4/2 = 2

2 = 1x

1x/1 = x

2/1 = 2

2 = x

3. Each month, Arnold receives $1,050 for working part-time at his uncle's camera store.
For each camera that he sells, he earns a $125 bonus. Which equation can be used to
find Arnold's total monthly paycheck, P(x), based on the number of cameras that he
sells, x?

Answers

Answer:

$1,050*125x=P(x). I just need more characters.

Step-by-step explanation:

The equation that represents Arnold's total monthly paycheck is

P(x) = 125x + 1050.

What is a function?

A function can be defined as the outputs for a given set of inputs.

The inputs of a function are known as the independent variable and the outputs of a function are known as the dependent variable.

Given, Each month, Arnold receives $1,050 for working part-time at his uncle's camera store so it is a constant income.

For each camera that he sells, he earns a $125 bonus.

Let P(x) be the monthly check and no. of cameras sold be x.

∴  Arnold's total monthly paycheck P(x) selling x cameras is,

P(x) = 125x + 1050.

learn more about functions here :

https://brainly.com/question/12431044

#SPJ2

What is the value of the expression 12 x (-1.6)

Answers

Answer: -19.2

Step-by-step explanation:

what does k= 9k=8k-6

Answers

k=−6 ok I think that is

Answer:

Alright, so we got k + 9k = 8k - 6.

This means that 10k = 8k - 6.

As a result, we have 2k = -6, and k = - 6/2 = -3

So, k = -3 :)

Pls help me with this! (10 points)THANK YOU
answers:
Piecewise
Square root
Absolute Value
Cube root
Exponential
Linear
Quadratic
Step

Answers

Answer:

Linear

Step-by-step explanation:

Straight Line = linear

h. What is the solution of 3n+ 5 = 26?
Use a table.

Answers

Answer: the answer is n=7 but what table do you want me to use because it does not show us on your question .

Step-by-step explanation:

What is 3 y + 5 x = negative 15 written in slope-intercept form?

Answers

Answer:

The answer would be y=-5/3x-5!

Step-by-step explanation:

You want to make the equation to y=mx+b, so you have to make y by its self. Subtract 5x from both sides and you'll get 3y=-5x-15. Now divide 3 by both sides and you'll get y=-5/3x-5 which would be the answer!

Answer:

y=(-5/3)x-5

Step-by-step explanation:

so the slope intersect form is y=mx+b

3y+5x=-15

subtract 5x from both sides

3y= -5x-15

divide both sides by 3

y= (-5/3)x - 5

When making a batch of cookies, the recipe calls for 1 cup of sugar and 2 cups of flour. What is the
ratio of sugar to flour in the cookies? i need help ASAP !

Answers

Answer:

1/2

Step-by-step explanation:

Please help anybody. I don’t get this

Answers

Answer:

1/16 my bad

Step by step explanation:

Answer:

Its D. 1/16

because you flip 8 to make the exponent positive. then you solve and you get 0.0625 which is 1/16

A number x is no less than -8.

Answers

Answer:

i think it's

x is greater than or equal to -8

Step-by-step explanation:

Select the equivalent expression.

Answers

Answer:

B

Step by step explanation:

Y3 becomes y×3=u3

25 becomes 2×5=10=

Y3-10 squared=

Y3-210

below will be 8 questions identifying like terms please help


identify the like terms -3a 2b 6ab 1 a

A. 1,a

B.-3a 2b 6ab

C.-3a 2b

D.-3a a

combine the like terms -3c +5c

A. 8c

B.-2c

C.-8c

D.2c

combine the like terms 3y - y + 6y

A.10y

B.8y

C.9y - y

D.2y

simplify the expression by combining any like terms 2a + 3 - 5a +8b

A.8b

B. 7a + 3 +8b

C.-3a + 3 +8b

D.5a +13b

simplify the expression by combining any like terms 6a + rs -4a + 6rs

A.2a +7rs

B.9rs

C.10a + 7rs

D.2a + 6rs

simplify using distributive property3(x+2) =

A.3x + 3

B.3x +6

C.3x +2

D.x +6

simplify using distributive property 6 (y-8) =

A.6y + 48

B.6y - 48

C.6y - 8

D.y - 48

simplify using distributive property 2a + 4 (a+5) - 7

A. 4a + 20

B.6a - 2

C.4a -13

D.6a +13

please help

Answers

like terms are things that are the same such as 1a and 2a, they share the same variable. so for question 1, the like terms would be B.

the second one is basically just adding them, so it’s kinda just -3+5. so your answer for number two is 2c.

the third one is very similar to the second one, it’s basically just 3-1+6. the answer to the third one is 8y.

the fourth one is also similar, you need to add like terms. so you need to look at the problem and add the a’s together since there are no other like terms found in the expression. so the simplified problem is -3a+3+8b.

same thing like 4 you need to look for like terms so the simplified expression is 2a+7rs

just distribute the 3 to all of them so like 3 times x and 3 times 2 so it’s 3x+6

same thing 6y-48

ok this one is a little different but mostly the same concept so 2a+4a+20-7 6a+13

there you go hope i helped

How to solve 4x^2+100=0​

Answers

[tex]\frac{+}{-}[/tex]Answer:

x = ± 5i

Step-by-step explanation:

How to solve 4x^2+100=0​

4[tex]x^{2}[/tex]+100=0​

4[tex]x^{2}[/tex] = -100

[tex]x^{2}[/tex]1=-100/4

[tex]x^{2}[/tex]=-25

x = ± [tex]\sqrt{-25}[/tex]

x = ± 5i

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