Answer:
(- 2, 5 )
Step-by-step explanation:
Given the 2 equations
3x + 4y = 14 → (1)
x = 2y - 12 → (2)
Substitute x = 2y - 12 into (1)
3(2y - 12) + 4y = 14 ← distribute and simplify left side
6y - 36 + 4y = 14
10y - 36 = 14 ( add 36 to both sides )
10y = 50 ( divide both sides by 10 )
y = 5
Substitute y = 5 into (2) for corresponding value of x
x = 2(5) - 12 = 10 - 12 = - 2
Solution is (- 2, 5 )

To solve for
, we need to isolate it on one side of the equation.
Take the square root of both sides, making sure to use both positive and negative roots.

cannot be simplified, so we'll leave it as-is.
Add
to both sides to fully isolate
.

Expand the solution by making two solutions, one where
is positive and one where it's negative.

Answer:
6a. 26
6b. 60%
6c. 33.3% or just one-thrid
7. 80.925 rounded is $80.93
8. 240
9. 25
10. 54%
Step-by-step explanation:
brainliest please!