8.
In countries like USA and Canada, temperature is measured in Fahrenheit, whereas in
countries like India, it is measured in Celsius. Here is a linear equation that converts
Fahrenheit to Celsius:
nty 2
10
9
# 9-100 = 0
F=
C + 32
5
(1) Draw the graph of the linear equation above using Celsius for x-axis and Fahrenheit
for y-axis.
(ii) If the temperature is 30°C, what is the temperature in Fahrenheit?
(iii) If the temperature is 95°F, what is the temperature in Celsius?
(iv) If the temperature is 0°C, what is the temperature in Fahrenheit and if the
temperature is 0°F, what is the temperature in Celsius?
(v) Is there a temperature which is numerically the same in both Fahrenheit and
Celsius? If yes, find it.
Answers
Answer:
In countries like USA and Canada, temperature is measured in Fahrenheit, whereas in countries like India, it is measured in Celsius. Here is a linear equation that converts Fahrenheit to Celsius:
F=(
5
9
)C+32
(i) Draw the graph of the linear equation above using Celsius for x-axis and Fahrenheit for y-axis.
(ii) If the temperature is 30
o
C, what is the temperature in Fahrenheit?
(iii) If the temperature is 95
o
F, what is the temperature in Celsius?
(iv) If the temperature is 0
o
C, what is the temperature in Fahrenheit and if the temperature is 0
o
F, what is the temperature in Celsius?
(v) Is there a temperature which is numerically the same in both Fahrenheit and Celsius? If yes, find it
Hope it will help you DEAR
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Answer:
Hi
To find the temperature when both are equal, we use an old algebra trick and just set ºF = ºC and solve one of the equations. So the temperature when both the Celsius and Fahrenheit scales are the same is -40 degrees.