The ratio of those who do not have blue eyes to those who do is

To find the ratio of those who do not have blue eyes to those who do, we can first determine the number of people in Tanya's family who do not have blue eyes.
Total number of people in the family = 21
Number of people with blue eyes = 6
Number of people without blue eyes = Total - Blue eyes = 21 - 6 = 15
Now, the ratio of those who do not have blue eyes to those who do is given by:
![\[ \text{Ratio} = \frac{\text{Number without blue eyes}}{\text{Number with blue eyes}} \]](https://img.qammunity.org/2024/formulas/mathematics/high-school/7ayhhk311srvhcxopp2vhk4075bw393lbh.png)
Substitute the values:
![\[ \text{Ratio} = (15)/(6) \]](https://img.qammunity.org/2024/formulas/mathematics/high-school/ex2jvi76xvttd073xwun2201fh5dhb5sgf.png)
Simplify the ratio if possible:
![\[ \text{Ratio} = (5)/(2) \]](https://img.qammunity.org/2024/formulas/mathematics/high-school/qxhsp3fgkwh9efgtr1udpjtortg9ozb6wq.png)
So, the ratio of those who do not have blue eyes to those who do is
.