In order to determin what 55% of 60 is, we can note that multiplying 60 by 1 means 100% of 60, so multiplying 60 by 0.55 will give us what we're looking for.
[tex]60\cdot0.55=33[/tex]Alternatively, we can note that 50% is half of a given quantity, 10% is a tenth of a quantity and 5% is half of 10%, so
55% of 60 is
[tex]\frac{60}{2}+\frac{\frac{60}{10}}{2}=30+\frac{6}{2}=30+3=33[/tex]