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
Answer:
C = 50 + 30d
Step-by-step explanation:
For one day,
50 + 30
For two days
50 + 2(30)
For d days,
50 + d(30)
C = 50 + 30d
Answer:
260 flat tyres were repaired.
<u>$400 </u>of sales in full tuneups
<u>$2600 </u>of sales in flat tyre repairs
Step-by-step explanation:
$40 x 10 = $400
$3000 - <u>$400</u> = $2600
<u>$2600</u> ÷ $10 = 260 flat tyres
Answer:
9.95 + 2.99z
Step-by-step explanation:
9.95 + 2.99z
