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
lora16 [44]
3 years ago
6

Solve the System of Equations

Mathematics
1 answer:
Softa [21]3 years ago
3 0

<u>Answer: </u>

The ordered pair value of (x, y) is (6,-11)

<u>Solution: </u>

Given Equations are

Let 8x + 15y = -117 be Equation 1 and 4x + 9y=-75 be Equation 2.

Solving Equations 1 and 2 to get the value of x and y.

Multiply Equation 2 with 4.

16x + 36y = -300

On dividing the above expression by 2, we get

8x + 18y = -150 (Change the sign to get the value of y).  

-8x - 18y = 150 --- eqn 3

Now solving eqn 1 and eqn 3

8x + 15y = -117

-8x - 18y = 150  

By cancelling 8x and -8x in eqn 1 and eqn 3

-3y = 33    

 y = -11

Substitute the value y in Equation 2.

4x + 9 (-11) = -75

4x – 99 = - 75

4x= -75 +99

4x = 24

x=6

Hence the value of x and y is (6,-11).

You might be interested in
Pleeease answer! Tysm!
yulyashka [42]

Answer:

The answer is 9 1/15 aka answer A.

Step-by-step explanation:

Too lazy to explain. :p

3 0
3 years ago
Comment all that apply
choli [55]
90°
∠AEF is a right angle
∠CEF is a straight angle
m∠CEF = m∠CEA + m∠BEF
4 0
3 years ago
Why is it that -log(x+8)=4-log(x-7) has no solution? (they are log base 2)
Lerok [7]
-log(x+8)=4-log(x-7) 

-\log _{10}\left(x+8\right)+\log _{10}\left(x+8\right)=4-\log _{10}\left(x-7\right)+\log _{10}\left(x+8\right) 

0=4-\log _{10}\left(x-7\right)+\log _{10}\left(x+8\right) 

0+\log _{10}\left(x-7\right)=4-\log _{10}\left(x-7\right)+\log _{10}\left(x+8\right)+\log _{10}\left(x-7\right) 

\log _{10}\left(x-7\right)=\log _{10}\left(x+8\right)+4 

\log _{10}\left(x-7\right)=\log _{10}\left(x+8\right)+\log _{10}\left(10000\right) 

x-7=\left(x+8\right)\cdot \:10000 

\mathrm{Solve\:}\:x-7=\left(x+8\right)10000:\quad x=-\dfrac{26669}{3333} 

\mathrm{Verifying\:Solutions}:\quad x=-\dfrac{26669}{3333}\space\mathrm{False} 

\mathrm{No\:Solution\:for\:x\in \mathbb{R}}
3 0
3 years ago
Read 2 more answers
What is the answer to any of these
seraphim [82]

Answer:

1.The chosen topic is not meant for use with this type of problem. Try the examples below.

(

6

,

−

3

)

(

6

,

4

)

(

9

,

7

)

7 0
2 years ago
Find a polynomial P(x) with the zeros x=2, −(2), √3, −√3
Zigmanuir [339]

Answer:

P(x) = x^{4} - 7x² + 12

Step-by-step explanation:

Given zeros x = 2, x = - 2, x = \sqrt{3}, x = - \sqrt{3}

Then the factors are (x - 2), (x + 2), (x - \sqrt{3} ), (x + \sqrt{3} )

and the polynomial is the product of the factors, that is

P(x) = (x - 2)(x + 2)(x - \sqrt{3} )(x + \sqrt{3} ) ← expand in pairs using FOIL

      = (x² - 4)(x² - 3) ← distribute

     = x^{4} - 3x² - 4x² + 12 ← collect like terms

    = x^{4} - 7x² + 12

6 0
3 years ago
Other questions:
  • Jake wrote this equation for the area of a rectangle.
    14·2 answers
  • Match the name of the sampling method descriptions given.
    6·1 answer
  • Which is bigger 3.2 or 3.23
    8·2 answers
  • What is 5/100 written as a decimal
    13·2 answers
  • What is the surface area of the right rectangular prism ?​
    6·1 answer
  • Can someone help me
    7·2 answers
  • Kylie borrowed a book from a library. The library charged a fixed rental for the book and a late fee for every day the book was
    12·1 answer
  • Jada’s family bought 50 tacos for a party and paid $72. Were Jada’s tacos the same price as Noah’s tacos?
    6·1 answer
  • ABCD is a parallelogram. AB = x + 16, AD = 4y – 4, CD = 2x + 8. If the perimeter of ▱ABCD is 80, find the value of y.
    14·1 answer
  • If k=-2, what is the value of 5 - (2k-1)?
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!