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
Sergeu [11.5K]
3 years ago
14

Solve the system of equations using elimination.

Mathematics
1 answer:
Verizon [17]3 years ago
5 0

Answer: A. (4,6)

Step-by-step explanation: 2(6y−4x = 20)                                                   3(−4y+3x = −12)                                                                                                     −8x+12y = 40                                                                                                     9x−12y = −36                                                                                                   -8x+9x                                                                                                                 +12y-12y                                                                                                               40-36                                                                                                                     x=4                                                                                                                   6y−4x = 20                                                                                                       6y−(4)(4) = 20                                                                                                   6y−16+16 = 20+16                                                                                                 6y/6 = 36/6                                                                                                           y = 6                                                                                                                       x = 4, and y = 6.

You might be interested in
PLEASEEEE ANSWERRR FASTTTT!!!!!!!!!!What is the equation of the line whose graph is shown?
Mamont248 [21]

Answer:

A

Step-by-step explanation:

The equation of a line passing through the origin is

y = mx ( m is the slope )

To find m use the slope formula

m = ( y₂ - y₁ ) / ( x₂ - x₁ )

with (x₁, y₁ ) = (1, 1) and (x₂, y₂ ) = (- 1, - 1) ← 2 points on the line

m = \frac{-1-1}{-1-1} = \frac{-2}{-2} = 1

y = x ← is the equation of the line → A

8 0
4 years ago
Please help with these (algebra)
alexgriva [62]
The answers for the first is D and for the second is B
Quotient is division, product is multiplication, difference is subtraction, and sum is addition
7 0
3 years ago
What values of b satisfy 4(3b + 2)2 = 64?
Vikentia [17]
Given the equation 4(3b + 2)² = 64, dividing both sides of the equation by 4, we have (3b + 2)² = 16 and getting the square root of both sides, (3b + 2) = 4 and (3b + 2) = -4 We can solve for b for each equation and have 3b = 2 | 3b = -6 b = 2/3 | b = -2 Therefore, the values of b are 2/3 and -2 and from the choices, the answer is <span>A: b = 2/3 and b = -2.</span>
8 0
3 years ago
What is the value of x in the diagram?
Ksenya-84 [330]
The red arrows mean the lines are parallel. Since all angles are equal, the larger triangle is similar to the smaller one. Then corresponding sides have the same ratio
(4x -2)/9 = (3x+2)/12
x(4/9 -3/12) = (2/12) +(2/9)
x = (7/18)/(7/36) = 2 . . . . . . . . . corresponding to the 3rd selection
3 0
4 years ago
Someone please help. It is easy
Juli2301 [7.4K]
Alright. So we have 2 eggs at 2.49 each. That is $4.98. We have .25 pounds cheese priced at $13.40 per pound. 13.40 x .25 = $3.35. Then we have juice at $5.49. If we add those up we get: 4.98+3.35+5.49=$13.82. Then we get $0.75 in change, so if we add $13.82 and 0.75 we get: $14.57

The answer is $14.57.
Brainliest???
5 0
3 years ago
Other questions:
  • An inch in equal to about 2.54 centimeters. Write an expression which estimates the number of centimeters in x inches. Then esti
    7·1 answer
  • Write the equation of the line that is perpendicular to the liney=-1x/ 3 + 2 and goes through the point (5, 6)
    11·1 answer
  • solve 2x^2 + 8- 1 = 0. Show all work, and explain why you chose the method that you used to solve the problem.
    14·1 answer
  • What two numbers make 68
    13·2 answers
  • Dennis drove for 3 1/3 hours on monday, 4 3/4 hours on Wednesday, and 2 1/10 hours on Friday. How many hours did Dennis drive th
    7·1 answer
  • Y’all I’m so bored! Here’s some free points
    8·2 answers
  • Oil consumption is increasing at a rate of 1.8% per year. by what factor will oil consumption increase inn 6 years? Use the appr
    5·2 answers
  • Please help with this!!
    9·2 answers
  • Joanne is playing a game with her friends. She is
    5·1 answer
  • Answer number 16 tyty js doing homework and looking for answerss​
    6·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!