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
PilotLPTM [1.2K]
2 years ago
8

Solve each pair of simulation equation.Giving both solutions. Multiply both equations by suitable numbers before adding/subtract

ing to elimination..
A) 6x-7y=9
3x+2y=54



B) 4x -5y =12
2x -3y =8


C)4x -2y=28
3x +3y=12


D)2x +5y =14
13x-11y=-83​
Mathematics
1 answer:
pashok25 [27]2 years ago
6 0

Answer:

Step-by-step explanation:

I haven't got time to do all these by I'll give you the method in each case.

You have to make the x or y term equal (or 1 term + and other -) in both equations before adding or subtracting.

A . Multiply  equation 2 by 2 and subtract (to eliminate x)

- don't forget to multiply EACH TERM by 2.

B. Multiply  equation 2 by -2 and add.

C.  Multiply  equation 1 by 3 and equation 2 by 2 ( this will give -6y and +6y in the resulting equations ) so  you then add to eliminate y.

D.  Multiply equation 1 by 13 and equation  and equation 2 by 2 to eliminate x then add.

You might be interested in
5. A local flower shop sells a dozen roses for
Alexeev081 [22]

Answer is below

B

12.85*5=64.25

8 0
3 years ago
The average of a list of 4 numbers is 90.0. A new list of 4 numbers has the same first 3 numbers as the original list, but the f
Thepotemich [5.8K]

Answer:

the average of this new list of numbers is 94

Step-by-step explanation:

Hello!

To answer this question we will assign a letter to each number for the first list and the second list of numbers, remembering that the last number of the first list is 80 and the last number of the second list is 96

for the first list

\frac{a+b+c+80}{4} =90

for the new list

\frac{a+b+c+96}{4} =X

To solve this problem consider the following

1.X is the average value of the second list

2. We will assign a Y value to the sum of the numbers a, b, c.

a + b + c = Y to create two new equations

for the first list

\frac{y+80}{4} =90

solving  for Y

Y=(90)(4)-80=280

Y=280=a+b+c

for the second list

\frac{y+96}{4} =X\\

\frac{280+96}{4} =X\\x=94

the average of this new list of numbers is 94

4 0
3 years ago
Read 2 more answers
Please help asap/ I need the correct answer for this homework ill give head?
nata0808 [166]

Answer:

Where is the question?

Step-by-step explanation:

please attach it...

8 0
3 years ago
Read 2 more answers
In the triangles, GK PN and HG 2MP.
dalvyx [7]

Answer:

G is smaller than P. Visually comparing G to P you are doing a rough comparison to a 90° (or right) angle. Angle G is a little bit tilted to the right making it just under 90°

6 0
3 years ago
Whoever answers this correctly gets brainliest
ELEN [110]

Answer: 11. Is A

Step-by-step explanation:

5 0
3 years ago
Other questions:
  • Divide.
    14·1 answer
  • Help please 10 points!!
    11·2 answers
  • 1. "The wind howled and shrieked" is the form of figurative language that gives human qualities to an
    8·1 answer
  • What is the formula to find the surface area of a triangular prism
    10·1 answer
  • The sentence , two less than the product of two and a number is greater than 5 times the opposite of the number, translates to w
    14·1 answer
  • A baker bought 4 gallons oficing to decorate cakes. He uses 4 % cups
    13·1 answer
  • What is the domain and range of the relation shown in the table?
    13·1 answer
  • In the diagram, the length of segment VS is 39 units.
    11·2 answers
  • Write an equation in point-slope form and slope-intercept form for each line.
    10·1 answer
  • A company surveyed all of the employees in their Columbus, Ohio office,
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!