Monday, July 15, 2013

ipm mega finals STD. IV answers

The temperatures are measured in degree Celcius and degree Fahrenheit. To convert degree Celcius to degree Fahrenheit the formula (F - 32) x 5/9 = C is used. The boiling point of water in Celcius is 100, What is the boiling point in Fahrenheit?



Answer:

(F - 32) x 5/9 = C

To find F we must  arrange the equation in a  manner to read F = ........
let us try to do that

What ever we do on the left side of equation, we will repeat the same on the right. other wise the balance will get disturbed.
(F - 32) x 5/9 x 9/5 = C x 9/5   ---------multiply both sides by 9/5
or, F - 32 = C x 9/5
but C = 100
So, F -32 = 100 x 9/5 = 900/5
or, F -32 + 32 = 900/5 + 32
or, F = 900/5 + 32 = 180 + 32 = 212 Answer



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