Thirty seven wells in Tallahassee were tested in July, 1989. Thirteen of these wells were contaminated. What percent of the wells were contaminated?
1 Answer
Dec 21, 2016
35.1% of the wells were contaminated.
Explanation:
"Percent" or "%" means "out of 100" or "per 100" or
We can then write this problem as:
or
Now we solve for