Answer:
The answer would be B. decrease the temperature by 2 degrees Celsius.
Step-by-step explanation:
Since 2°C - 2°C= 0, then you would obviously have to subtract to find your answer.
Ax + b = 3x -3a
Ax- 3x = -(3a+b)
x(A-3) = - (3a+b)
x = - (3a+b) / (A-3)
The answer should be 25.64$
You multiple that by 8% and then what you get out of it you add on to what you got as the total .
Answer:
y=x-4
Step-by-step explanation:
Answer:
In the graph we can find two points, lets select:
(2, 15) and (4, 30)
Those are the first two points.
Now, for two pairs (x1, y1) (x2, y2)
The slope of the linear equation y = s*x + b that passes trough those points is:
s = (y2 - y1)/(x2 - x1)
So the slope for our equation is
s = (30 - 15)/(4 - 2) = 15/2
then our linear equation is
y = (15/2)*x + b
now we can find b by imposing that when x = 2, y must be 15 (for the first point we selected)
15 = (15/2)*2 + b = 15 + b
b = 15 - 15 = 0
then our equation is:
y = (15/2)*x
Where we used a division and a multiplication.