Answer:
The answer to your problem is b because if she wants to spend 20 minutes on the piano and she has 50 minutes until dinner than she would have 30 minutes on the computer.
Step-by-step explanation:
Times bottom equation by 3 and top by 2 to get the same coefficient of x
6x-6y=60
6x+3y=33
Minus the bottom by the top
-9y=27
y=-3
substitute this in to one of the equations
2x -3 = 11
add 3 to both sides
2x=14
x=7
Answer:
y = -3x - 5
Step-by-step explanation:
First find the slope: (-20 - 1) / (5 - (-2)) = -3
Then plug in one set of points into the equation y = mx + b.
1 = -3(-2) + b
1 = 6 + b
b = -5
So you can get the equation: y = -3x - 5
Answer:
c+1/12
Step-by-step explanation:
18/24c-7/12+7/24c+8/12-4/24c=c+1/12
