Answer:
For
the value is a prime number.
Explanation:
Given:
![y=0.4](https://img.qammunity.org/2021/formulas/mathematics/high-school/pd9gu82jav4yxwhb24xgpin4f3i5vtx0bt.png)
is an even number.
We need to find the value of y for which value of equation is prime number.
Solution:
Let us assume that
![y=0.1](https://img.qammunity.org/2021/formulas/mathematics/high-school/la0zbkjy6o5heg1cmmuajxdjlja35v9kec.png)
Substituting the value in given equation we get;
![10y+2\\\\=10* 0.1+2\\\\=1+2\\\\=3](https://img.qammunity.org/2021/formulas/mathematics/high-school/d30aq32wg7amafw5zq2skxwjs332wvxh4v.png)
Which is a prime number.
Hence We can say that for
the value is a prime number.