Answer:
(x, y) = (8, -3)
Step-by-step explanation:
You can substitute for x in the first equation:
3(-3y -1) +3y = 15
-6y = 18 . . . . . add 3 and simplify
y = -3 . . . . . . . divide by -6
x = -3(-3) -1 = 8 . . . . find x using the second equation
The solution to this system of equations is (x, y) = (8, -3).
Answer:
7.0 < x < 7.6
X is the ideal pH of the swimming pool
Answer:
Rational
Step-by-step explanation:
This can be reduced to a ratio of 1/2. Numbers that can be expressed as ratios are rational.
Answer:
y=2(x−4)²+3
Step-by-step explanation:
Answer:
Concert ticket now costs $79.
Step-by-step explanation:
21% is being removed from the original cost, in this case, that's $21. 100-21=79. Hope this helps ;)