1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Maslowich
1 year ago
15

Solve using substitution method and show all work 4x -2y = 18-4x + 2y = -18

Mathematics
1 answer:
Travka [436]1 year ago
6 0

Solving the simultaneous equation show that the solution is inconsistent.

<h3>What is Inconsistent solution?</h3>

A simultaneous equation is said to have inconsistent solution when there is no value as the solution. This implies that no value of unknown will satisfy the equation.

Hence no value of x and y satisfies the equation.

4x -2y = 18 ______1

-4x + 2y = -18 ____2

from (1) make y the subject of formular

4x -2y = 18

2y =  4x - 18

y = 2x - 9   ______3

substitute y = 2x - 9 into 2

-4x + 2y = -18

-4x + 2 (2x - 9 ) = -18

-4x + 4x - 18 = -18

-4x + 4x = -18 + 18

0 = 0

This gives no solution hence the simultaneous equation is said to be inconsistent

Read more on inconsistent solutions here: brainly.com/question/15654281

#SPJ1

You might be interested in
A vendor sold 15 hotdogs diring a football game.If the ratio of hotdogs to hamburgers sold was 3:2 how many hamburgers did the v
algol13
10 hamburgers were sold
4 0
2 years ago
I have to find an equation for a table​
Anna35 [415]

Let's say imput is i and that output is o.

The formula is 2 ^ i = o

2^0 = 1

2^1 = 2

2^2 = 4

2^3 = 8

2^4 = 16

2^5 = 32

Notice how the numbers match?

Hope this helped :)

8 0
3 years ago
If you knew that the vertical intercept for a straight line was 150 and that the slope of the line was 4, then the dependent var
Maslowich

Answer:

Value of the independent variable = 25

Step-by-step explanation:

y-intercept form of a straight line is represented by the equation,

y = mx + b

here y = dependent variable

        m = slope

        b = y intercept or vertical intercept

        x = independent variable

In our question,

y-intercept 'b' = 150

slope of the line 'm' = 4

dependent variable y = 250

We will plug in these values in the equation of the line to get the value of the independent variable.

250 = 4x + 150

250 - 150 = 4x

x = \frac{100}{4}

x = 25

Therefore, value of the independent variable is 25.

7 0
3 years ago
Simplify the expression 2(2-x)-3x
Nastasia [14]
First thing you should do is <span>Distribute...
</span>=(2)(2)+(2)(−x)+−3x
=4+−2x+−3x
<span>Next is to Combine like terms..
</span>=4+−2x+−3x
=(−2x+−3x)+(4)
<span>Answer..
</span>=−5x+4

Good luck with your studies~ ^//^
<span>
</span>
8 0
2 years ago
 (Do it if you want BRAINLY) The original height of Khafre's pyramid, next to the Great Pyramid, was about 471 ft. Each side of
Lesechka [4]

We have the base measurement for the triangles composing the sides. We need their altitude.  

Imagine a right triangle with these sides:  

(1) from the apex of the pyramid to the point on the base directly underneath it (471 ft);  

(2) from the middle of base edge to the point underneath the apex (half of 708 ft = 354 ft);  

(3) the hypotenuse, the altitude of a triangular side.  

Using the Pythagorean Theorem, we find the hypotenuse to be  

√(471^2 + 354^2) = about 589.2 feet  

Now we add up the four triangles' areas. Each is base * altitude / 2, so:  

4 x 708 x 589.2 / 2  

= 2 x 708 x 589.2  

= 834,307.2 square feet, the lateral area.

7 0
3 years ago
Other questions:
  • Write each expression in EXPONENTIAL form and find its VALUE.
    15·1 answer
  • The sum of two numbers is 20. The difference between three times the first number and twice the second is 40. Find the two numbe
    13·1 answer
  • A coffee maker priced at $189.99 is on sale for 20% off but then sales tax of 9% and 8% are added to the price after discount. W
    6·1 answer
  • 20.4939015 x 20.4939015
    5·1 answer
  • GEOMETRY. Identify the angles that each have a measure of 117º
    11·1 answer
  • A sample of 148 college students at a large university reports getting an average of 6.85 hours of sleep last night with a stand
    13·1 answer
  • Which is the approximate perimeter for triangle PQR<br><br> A- 16<br> B- 17<br> C- 19<br> D- 21
    13·1 answer
  • Whats the future value of $1,500 after 5 years uf the appropriate interest rste is 6%, compoubded semiannually
    5·1 answer
  • The side length of an equilateral triangle is 4x – 5. Which expression represents
    10·1 answer
  • NEEED HELPppppppppppp<br> PLSSSSS
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!