Which ratio is less than 7/15?

1. 9/15
2. 2/5
3. 3/5
4. 24/45

option (b) is correct

step-by-step explanation:

to find the solution of this system, we need to convert it into reduced row-echelon form. we have,

after applying row operations r2 -> r2/2 and r3 -> r3/3, we get,