## Basic College Mathematics (9th Edition)

We are given the percent 100%. We know that 100%=$100\div100=\frac{100}{100}=\frac{100\div100}{100\div100}=\frac{1}{1}=1$ To write 100% as a decimal, divide by 100 and drop the percent sign. $100\div100=1.0$ Therefore, \$1=100%.