Mathematics College

2x - 3y = -14
5x + 9y = -2

Answers

Answer 1

Step-by-step explanation:

2x-3y= -14

5x+9y= -2

multiply the first one by 5 and the second one by -2 to get equal and opposite value of x.

➡️when you multiply,it will be

10x-15y= -70

-10x-18y= 4

cancel out each x value,then you get

-15y-18y= -70+4

-33y= -66, divide each side by -33 to get the value of y

⚪️y= 2

➡️substitute the value of y in the equation of (2x-3y= -14) to find the value of x

2x-3(2)= -14

2x-6= -14

2x= -14+6

2x= -8 divide both side by 2

⚪️x= -4

so the answer is (-4,2)

Related Questions

What is the volume of a cube with edge length 1/3 cm

Answers

Answer:

1/27 cm3

Step-by-step explanation:

(1/3)(1/3)(1/3)

Find the minimum value of
C = 6x + 7y

Answers

the minimum value of c is 46

i need to know what x is

Answers

Answer:

X would most likely be 10

Step-by-step explanation:

1. Each spring, Genevieve helps her mom plant flowers. There are 24 rows of
flowers and she plants 18 flowers in each row. How many flowers does Genevieve
plant?

Answers

Answer:

Genevieve plants a total of 432 flowers.

Step-by-step explanation:

18 flowers go in every row so you have to multiply the number of rows (24) by the number of flowers in each row (18) to get the total of 432 flowers.

Which statement is NOT true of the equation y = 0.5x?

a. The value of y is one-half times the value of x.
b. The equation represents an additive relationship.
c. The value of y is 4 when the value of x is 8.
d. The equation represents a multiplicative relationship.

Answers

Answer:

it would be C do to the fact that 0.5 x 8=4

(2x −6) +4 (x −3)
find the sum

Answers

Answer:

6 x (x - 3)

Step-by-step explanation:

Answer:

6x - 18

Step-by-step explanation:

Distribute the 4

2x - 6 + 4x -12

Combine like terms

2x + 4x = 6x

-6 - 12 = -18

!!!!15 EASY POINTS!!!!

What is 8x times x?

Answers

Answer:

8x²

Step-by-step explanation:

Whenever it's multiplication, you would count how many x's there are and raise the x to the power of the number of x's.

The multiplication of 8x and x is 8x^2.

When we have to do multiplication,

We have given 8x and x.

What is the meaning of multiplication?

Multiplication is defined as calculating the result of repeated additions of two numbers.

you would count how many x's there are and

Raise the x to the power of the number of x's.

and that is

[tex]=8\times x\times x[/tex]

There are two x therefore we have

[tex]=8x^2[/tex]

Therefore the multiplication of 8x and x is 8x^2.

To learn more about the multiplication visit:

https://brainly.com/question/10873737

need help with this problem ​

Answers

Answer:

 h(x) =  -x² + 11 x + 2

Step-by-step explanation:

Explanation:-

Given that the functions are  

                                            f(x) = 2 x² - 5x -3

                                            g(x) = x² + 6x -1

               h(x)  = g(x) - f(x)

                      = x² + 6x -1 - (2 x² - 5x -3)

                     = - x² + 6 x +5x -1+3

                    = -x² + 11 x + 2

            h(x) =  -x² + 11 x + 2

Final answer:-

h(x) =  -x² + 11 x + 2

                             

Which of the points shown below are on the line given by the equation y = 4x?
Check all that appply.

Answers

Answer:

The answer would be (1,4)

Step-by-step explanation:

BRAINLYEST TO WHO EVER IS RIGHT!!!
How many zero pairs can be created in the model below?
O- 0
O- 1
O- 2
O- 3

Answers

Answer: -x because its more than one zero

Step-by-step explanation:

If a car travels x miles/hour for 3 hours, how far car travel after 6 hours?
a) x+3+3 miles
b) x+x miles
c) 9x miles
d) 2x miles
e) 6x+3x miles

Answers

Answer:

e will be the answer for sure of miles it happene d for the past hours he traveled in and how long

The average cost of a bag of popcorn at the movie theater was $3.50 in 1995 and $4.75 in 2015 find the percentage change in the price of the bag of popcorn from 1995 to 2015 and classify as a percent increase or percent decrease

Answers

Answer:

500$ dollars

Step-by-step explanation:

Me. Strand mowed 3/8 of his lawn. His son mowed 1/3 of it. Who mowed most of the lawn? How mush of the lawn still needs to be mowed?

Answers

3/8 * 3/3 = 9/24
1/3 * 8/8 = 8/24

So strand mowed more of the lawn.

9/24 + 8/24 = 17/24

24/24 - 17/24 = 7/24 of the lawn left

Solve for a

a² + 7a - 8 = 0

Answers

Answer:

a=-8

Step-by-step explanation:

Laura creates a rectangular prism with wooden cubes. Each cube has an edge length of 3/4 inch. she uses a total of 240 cubes. the cubes are stacked 8 cubes high. What are the possible measurements for the length and width of the rectangular prism in inches.
Enter each measurement on a separate line.

Answers

Answer:00.24

explanation:

Just add the decimal form and multiply the 240 with the decimal of the 3/4

y + 8 < -2. the inequality is... HELPP

Answers

Answer:

y<-10

Step-by-step explanation:

Answer:

y < -10

Step-by-step explanation:

y + 8 < -2

y < -2 -8

y < -10

Write an expression showing 5 less than the number .

Answers

Answer:

if the number is anything then I pick 10 so 5 because 10 - 5 = 5 I guess lol

Step-by-step explanation:

Answer:

k-5

Step-by-step explanation:


You sell 300 shares of Dendreon Corp at $8.89. You purchased the stock at $42.87. How much money did you lose?
O $42.87
O $8.89
$2,667
O $10,194
$12,861

Answers

42.87 if you where to multiply 300 shares by $8.89 if would give you 2,667 and if you where to subtract $42.87 from 2,667 it would give you 2,624.13 and then subtract 2,667 from 2,624.14 it would give you 42.87 and that is your answer :)

Enter an equality that matches the number line model. Use x as your variable.

Answers

Answer

x < - 3

Explanation

X is a number less than 3

If a half gallon of milk costs $1.24, what is the cost per pint?

Answers

$0.31 for each pint hope this helps

2x - 5y + 3z 5x + 9y - 2z

Answers

Answer:

3xz5+2x+4y−2z

Step-by-step explanation:

2x−5y+3z5x+9y−2z

=2x+−5y+3xz5+9y+−2z

Combine Like Terms:

=2x+−5y+3xz5+9y+−2z

=(3xz5)+(2x)+(−5y+9y)+(−2z)

=3xz5+2x+4y+−2z

ANSWER FAST!

The table shows the linear relationship between the number of right tickets purchased and the total cost of admission plus ride tickets at a carnival. which function can be used to find y, The total cost of attending the carnival in purchasing x ride tickets?

A. Y= 25x +8
B. Y= 8x + 25
C. Y= 8x+ 0.25
D. Y= 0.25x + 8​

Answers

Answer:

c

Step-by-step explanation:

17 Which is a true statement? Standard 8.3
A All rational numbers are whole numbers.
B All irrational numbers are integers.
C All negative integers are irrational numbers.
D All positive integers are rational numbers.
Whe

Answers

Answer:

D All positive integers are rational numbers.

Step-by-step explanation:

Integers are rational numbers

NEED HELP WITH GEOMETRY

Answers

Answer:

m<1 = 76°

m<2 = 76°

m<3 = 49°

Step-by-step explanation:

✔️m<1 = 180 - (47 + 57) (sum of triangle)

m<1 = 76°

✔️m<2 = m<1 (vertical angles are congruent)

m<2 = 76° (substitution)

✔️m<3 = 180 - (55 + m<2) (sum of triangle)

m<3 = 180 - (55 + 76) (substitution)

m<3 = 49°

I need help with this problem if anyone can help ASAP please help !

Answers

Answer:

42

Step-by-step explanation:

Simplify 3(x + 3) – 2x + 4

Answers

Answer:

x + 13

Step-by-step explanation:

Distribute:

3x + 9 - 2x + 4

Evaluate:

3x - 2x = 1x

9 + 4 = 13

Answer:

x + 13

The other letter to the left is X btw PLS HELP

Answers

Answer:

probably D

Step-by-step explanation:

answer: D

34+26=60
180-60=120

I am confused on what I need to do. someone please help?

Answers

Answer:

x = 16

Step-by-step explanation:

Since ∆ABC is congruent to ∆DEC, their corresponding angles would be equal to each other.

<B is congruent to <E, therefore,

<B = <E

x + 15 = 6x - 65 (substitution)

Collect like terms

x - 6x = -15 - 65

-5x = -80

Divide both sides by -5

x = 16

Find the slope between the two points (-6, 3) and (12, 19)

Answers

Answer:

8/9

Step-by-step explanation:

(19-3)/(12-[-6])

16/18

8/9

Answer:

1/3

Step-by-step explanation:

-2x-4=16
Show each step of your work.

Answers

Answer:

x= -10

Step-by-step explanation:

PEMDAS

First you multiply- -2x?

You don't know what x is so you subtract 4 for 16

16-4=12

2-12= -10

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