Given:
Number of pets = 20
60% are dogs
3 of the dogs have black fur
The number of dogs is:
[tex]\begin{gathered} =60\text{ \% of 20} \\ =\frac{60}{100}\times\text{ 20} \\ =\text{ 12 dogs} \end{gathered}[/tex]
The percentage of Amy's dogs that have black fur is:
[tex]=\text{ }\frac{\text{Number of dogs that have a black fur}}{Total\text{ number of dogs}}\times\text{ 100 \%}[/tex]
Substituting we have:
[tex]\begin{gathered} =\text{ }\frac{3}{12}\times\text{ 100 \%} \\ =\text{ 25\%} \end{gathered}[/tex]
Hence, the percentage of dogs that have black fur is 25%
Answer: 25%
