Answer:
x= -8
Step-by-step explanation:
1/2x + 13=9
- move 13 to the other side
1/2x= 9-13
-simply 9-13
1/2x= -4
-multiply 2 on both sides
1x=-8
x=-8
Answer:
The pizza heats up an average of 7.50 degrees per minute
Step-by-step explanation:
The table shown
Time (minutes) Temperature (degrees Celsius)
1 2.52
7 47.547
13 92.592
Since the pizza was heated at a constant rate, we can model the experiment as a line, where the slope represents how fast the pizza was heated
Slope
m = (y2 - y1)/(x2 - x1)
Let
(x1,y1) = (7, 47.547)
(x2,y2) = (13, 92.592)
m = (92.592 - 47.547)/(13-7)
m = 7.5075
The pizza heats up an average of 7.50 degrees per minute
To find each box, you have to multiply the number above the box and the number to the left of the box.
For the bottom left, we have 4 x 0.8 or 3.2.
For the bottom right, we have 0.8 x 0.6 or 0.48.
