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
marshall27 [118]
3 years ago
11

3x - 4y = -15 ; 4x +3y =5

Mathematics
1 answer:
Kipish [7]3 years ago
4 0
Using elimination method to find y
3x - 4y = -15  (multiply 4)
4x + 3y = 5    (multiply 3)
------------------------------------
12x - 16y = -60
12x + 9y  = 15
--------------------- - (substract)
         -25y = -75
               y = 3

Using subtitution method to find x
3x - 4y = -15
3x - 4(3) = -15
3x - 12 = -15
3x = -3
x = -1

The solution (-1,3)
You might be interested in
A city planner is mapping out some new features for a triangle park. She sketches the park on a grid paper. The coordinates of t
Alecsey [184]

Answer:

Perhaps, she is interested in finding the area enclosed by this triangular park.

Step-by-step explanation:

The area of the triangle enclosed by the three points

A(1,1), B(1,4) and C(-3,4) in this question will be given by

|Ax ( By  − Cy)+ Bx(Cy−Ay)+ Cx(Ay− By) |/2  

=|1(4-4)+1(4-1)+-3(1-4)|/2=10/5= 5 sq. units.

5 0
3 years ago
Which series of transformations maps △ABC to △A′B′C′?
denis-greek [22]

Answer:

A

Step-by-step explanation:

If you translate left one unit, then reflect across the x axis, you get the ending figure

5 0
3 years ago
Read 2 more answers
Give the measure of angle C. <br>20° <br>180°<br>70°<br>110°​
tigry1 [53]

Answer:

C=110

Step-by-step explanation:

Angle C and the angle labeled 110  are alternate interior angles if the lines are parallel.  Alternate interior angles are equal

C=110

8 0
2 years ago
Read 2 more answers
PLEASE HELP ASAP !!!!!!!!
AnnyKZ [126]
Answer: 7°

Explanation:

FBD = EBC
2x + 3 = 9x - 11
-7x = -14
x = -14/-7
x = 2

EBC = 9(2) - 11 = 18 - 11 = 7°
7 0
3 years ago
Read 2 more answers
!!!! Help I’ll give BRAINLIEST
OlgaM077 [116]

Answer:

A and C

Step-by-step explanation:

Negative slope

3 0
3 years ago
Read 2 more answers
Other questions:
  • The revenue from selling x hats is r(x)=18x The cost of buying x hats is c(x)=8x+30. The profit from selling x hats is p(x)=r(x)
    11·1 answer
  • What are the excluded values of x for 2-3x-28/х2-2x-35
    10·2 answers
  • {2x+7y=2 <br> {y= -2x-1<br> Am I right?
    7·1 answer
  • A china shop receives a shipment of 125 dishes in 5 boxes. At this rate how many dishes will it receive in 15 boxes
    9·2 answers
  • If a tourist walked all 3 trails in a day, how many kilometers would he have walked?
    13·1 answer
  • Find the Coordinates of the center and the measure of the radius.
    12·1 answer
  • Evaluate F(3)for the piecewise function which value represents F(3)
    9·1 answer
  • Solve the following inequality.<br> 4m +6&lt;2 OR m74<br> &gt; 3
    12·1 answer
  • △ABC is inscribed in a circle such that vertices A and B lie on a diameter of the circle. If the length of the diameter of the c
    9·1 answer
  • 2x - 5 + ¾ (4x - 8) =19
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!