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
Lelechka [254]
3 years ago
11

4x-12y= 13 32y+14x=13

Mathematics
2 answers:
dlinn [17]3 years ago
6 0

Answer:

x = 143/74

y = -65/148

Step-by-step explanation:

4x-12y= 13

4x = 13 + 12y

x = 13/4 + 3y

32y+14x=13

32y + 14(13/4 + 3y) = 13

32y + 91/2 + 42y = 13

74y = 13 - 91/2

74y = -65/2

y = -65/148

x = 13/4 + 3(-65/148)

x = 143/74

x = 143/74

y = -65/148

Kazeer [188]3 years ago
4 0

Answer:

(143/74, -65/148)

Step-by-step explanation:

We have the equations:

4x - 12y = 13

14x + 32y = 13

Let's use elimination, so multiply the first equation by 8 and the second equation by 3:

8 * (4x - 12y = 13)  ⇒  32x - 96y = 104

3 * (14x + 32y = 13)  ⇒  42x + 96y = 39

Add those two equations:

    32x - 96y = 104

+   42x + 96y = 39

________________

    74x  +  0y  =  143

Divide both sides by 74:

x = 143/74

Plug this into an equation to find y:

4x - 12y = 13

4 * (143/74) - 12y = 13

12y = 572/74 - 13 = -390/74

y = -65/148

The answer is (143/74, -65/148).

You might be interested in
Ideas for a 12 year old b-day party?
Troyanec [42]
A trampoline park or an arcade
5 0
3 years ago
Read 2 more answers
Danielle sells beauty supplies and earns a base salary of $450 per week plus a 9% commission on sales. During one particular wee
Anna007 [38]

Answer:

Should be 530.55 total that week

And 80.55 in commissions

7 0
3 years ago
4. Write the range of this function.<br>(4,12) (1,3) (3,9) (5,15)​
forsale [732]
Range is all real numbers
(-infinity, positive infinity)
4 0
3 years ago
Which expressions are equivalent?
Phoenix [80]

im pretty sure it's the first option.

6 0
3 years ago
Read 2 more answers
HELP PLEASE ASAP
olga2289 [7]

Answer: a) degree and sign

b) end behavior: left side → +∞, right side → -∞

c) x-intercepts: x = -1.3, 0.3, 1.0

<u>Step-by-step explanation:</u>

end behavior can be determined by two things:

1) the degree of the polynomial:

  • if the degree is an even number, then the end behavior will be the same for both the left and right sides.
  • if the degree is an odd number, then the end behavior will be different for both the left and right sides.

2) the sign of the leading coefficient:

  • If the leading coefficient is positive, then the end behavior of the right side goes to positive infinity
  • If the leading coefficient is negative, then the end behavior of the right side goes to negative infinity

W(x) = -5x³ + 7x - 2

Degree: 3 (odd)

Leading Coefficient: negative

So, end behavior is: right side goes to negative infinity, right side goes to positive infinity.


See attachment for x-intercepts. <em>I set the x-axis to represent tenths </em>

5 0
3 years ago
Other questions:
  • What’s the answer to 10(1-x)
    8·1 answer
  • Complete the definition of the h(x) so that it is continuous over its domain. Function a = b =
    10·2 answers
  • How do you do this to get one pls I need help
    12·1 answer
  • Help me please,Thanks
    12·2 answers
  • Find the percentage increase from 360km to 540km
    11·1 answer
  • Given the circumference of a circle is 26 pi, what is the area of the circle? Show work. Leave answer in term of pi.
    8·1 answer
  • Hey can someone help me real quick with this question
    9·1 answer
  • If the ordered pairs(a,3)and (2,b) belong to the set {(x,y):y=2x-3},find the value of a,b​
    13·1 answer
  • Can you figure out the missing number in this sequence?<br><br> 2, 5, 9, 14, 27
    6·1 answer
  • Due soon!! please help
    12·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!