Answer:
0.6 °C/min
Step-by-step explanation:
The relationship between rates and movement is ...
time = distance/speed
Here, the "distance" is measured in °C, and the "speed" is the rate of change of temperature.
For the first half of the heating, the time required is ...
(50°C -0°C)/(1.5 °C/min) = 50/(3/2) min = 100/3 min
For the second half of the heating, the time required is ...
(100°C -50°C)/(4/10 °C/min) = 50/(4/10) = 125 min
Then the total time is ...
((100/3) +125) min = (475/3) min
And the average rate of temperature increase is ...
total temperature change / total time
= (100°C -0°C)/(475/3 min) = 300/475 °C/min = 12/19 °C/min ≈ 0.6 °C/min
2.
3.
4.
This fraction is
5.
6.
7.
8.
9.
from 8.45am to 12.45pm - 4 hours
I earn
10.
48 minutes = 1 hour - 12 min
21.15 - 1 hour = 20.15
20.15 + 12 min =
20.27
11.
12.
I get up at 6.45am
13.
14.
15.
Answer:
24.12-9.8=24.32
Step-by-step explanation:
hope this helps, sorry I'm bad at explaining, but just trust me it is this im 100% positive.
Answer:
Add a positive integer by moving to the right on the number line.
Subtract an integer by adding its opposite.
Step-by-step explanation:
Answer:
2.3 2.389 2.39 2.4 2.41
Step-by-step explanation:
2.3<2.389 (2,39)<2.39<2.4<2.41
