Question

when writing an exponential function, how do you put 12.5% into a decimal.... for example 20% goes into .20 but how would I do that for 12.5? please help!

Answer 1

Remember that 1% is equivalent to 1 hundredth, or 0.01. What does 0.5% mean, then? Well, it's 0.5 hundredths, or five-tenths of a hundredth.

If we look at that in terms of fractions, that translates to:


`(5)/(10)* (1)/(100) = (5)/(1000)`

So, 0.5% is five thousandths, or 0.005, as a decimal. Combining that with 12%, which is 0.12 or twelve hundredths as a decimal, we have:

12.5% = 0.12 + 0.005 = 0.125