A local hardware store sold 12% of its hammers on Saturday. If the hardware store began with 350 hammers on Saturday, how many hammers were left at the end of the day?
There were 308 hammers left at the end of Saturday.
We can write the equation for this problem as:
We will need to first calculate s:
"Percent" or "%" means "out of 100" or "per 100", Therefore 12% can be written as
When dealing with percents the word "of" means "times" or "to multiply".
Putting this altogether we can write this equation and solve for
We can number solve the equation for the remaining hammers by substitution: