Answer:
x = 4
Explanation:
3x - 4y = 36
5x + 2y = 8 ( multiply all by two )
3x - 4y = 36
10x + 4y = 16
13x = 52
Divide by 13
x = 4 hope this helps
Answer: The common ratio is 4.
Step-by-step explanation:
Each term is four times the last term. The common ratio of a geometric sequence is the number that is being multiplied by each time to get the next term, which is four in this case.
Answer:
(1)
Step-by-step explanation:
Slope of the given line is -2
1) 4x + 2y = 5, 2y = -4x + 5, y = -2x + 5/2, slope is -2
Parallel line, same slope so the answer is (1)
Answer:
(2, 0 )
Step-by-step explanation:
Given the 2 equations
5x - 2y = 10 → (1)
x + 4y = 2 → (2)
Multiplying (1) by 2 and adding to (2) will eliminate the y- term
10x - 4y = 20 → (3)
Add (2) and (3) term by term to eliminate y
11x + 0 = 22
11x = 22 ( divide both sides by 11 )
x = 2
Substitute x = 2 into either of the 2 equations and solve for y
Substituting into (1)
5(2) - 2y = 10
10 - 2y = 10 ( subtract 10 from both sides )
- 2y = 0, so
y = 0
solution is (2, 0 )