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Introduction To Euclid's Geometry

Question
CBSEENMA9002163

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:

straight F equals open parentheses 9 over 5 close parentheses straight C plus 32

If the temperature is 95°F, what is the temperature in Celsius?

Solution

When F = 95, then
        space space space space space space space space space space space space space F equals open parentheses 9 over 5 close parentheses C plus 32
rightwards double arrow space space space space space space space space space space 95 space equals space open parentheses 9 over 5 close parentheses C plus 31

rightwards double arrow space space space space space space space space space open parentheses 9 over 5 close parentheses C equals 95 minus 32
rightwards double arrow space space space space space space space space space open parentheses 9 over 5 close parentheses C equals 63
rightwards double arrow space space space space space space space space space space C equals fraction numerator 63 cross times 5 over denominator 9 end fraction
rightwards double arrow space space space space space space space space space space C space equals 35
therefore   Required temperature = 350C