EXERCISE 21.4
1. The temperature of a place measured from 6 a.m. to 6 p.m. at intervals of 2 hours is given below:
Time 6 a.m. 8 a.m. 10 a.m. 12 noon 2 p.m. 4 p.m.
Temperature (°C)
12
22
6 p.m.
15
26
23
Draw a graph to represent the above information. Using this graph, find the following:
(a) Temperature at 7 a.m.
(b) Temperature at 1 p.m.
(C) Time before noon, when the temperature was 20°C.
(d) Time, to nearest minute, when the temperature was 25°C.
Answers
Answer:
15
Step-by-step explanation:
the time before noon when the temperature was 20 degree Celsius at the time to nearest minute when the temperature is 25 degree as 66 is 12
Answer:
The correct answers are:
a)17°C
b)24°C.
c)10:30 a.m.
d) 4:10 p.m.
Step-by-step explanation:
To draw a graph of the temperature measurements from 6 a.m. to 6 p.m., we can plot the time intervals on the x-axis and the temperature measurements on the y-axis.
(a) We can look at the point on the graph that corresponds to the time 7 a.m., which is halfway between the 6 a.m. and 8 a.m. points. From the graph, we get 17°C.
(b) We can look at the point on the graph that corresponds to the time 1 p.m. From the graph, we get temperature is approximately 24°C.
(c) We can look at the line on the graph that corresponds to the temperature of 20°C, and then find the point on the line that is before the 12 noon point on the x-axis. From the graph, we get time around 10:30 a.m.
(d) We can look at the line on the graph that corresponds to the temperature of 25°C, and then estimate the time based on the position of the point on the line. From the graph, we get around 4:10 p.m. (16 hours 10 minutes).
The resulting graph is given below:
For more information about graphs, click here: https://brainly.in/question/48387763?referrer=searchResults
For more information about temperature, click here: https://brainly.in/question/3336671?referrer=searchResults
#SPJ3
