How did the temperature change if:
Chapter Reference
a
It increased by 50 % and then decreased by 33 1/3%
Let 50% = 1/2
Let 33 1/3 % = 1/3
Let the original temp = T
So.....increasing by 50% = T * (1 + 1/2) = T(3/2) = (3/2)T
And decreasing this by 33 1/3% = (3/2)T * ( 1 - 1/3) = (3/2)T * (2/3) = T
Just what we started with !!!
