12% of the mammals at the aquarium are otters. 40% of the otters are male. What percent of the mammals at the aquarium are female otters?
+775 40% of 12% is 4/10 * 3/25 = 12/250 --> 4.8/100, or 4.8%. 12% - 4.8% = 7.2%, so \(\boxed{7.2 \%}\) of the mammals at the aquarium are female otters.
Hope this helps,
- PM
