Yes it is because you divide 12/7 by 3/1
Because the gcf is 12 and the lcm is 1000000000000000000000000000000000000000000000000000
Let the amount invested with 5% interest be x
Therefore, the amount invested with 6% interest will be (6000-x)
It is given that the total interest earned yearly is $337.5. Thus, the equation of interest will be:

Multiplying both sides by 100 we get:


Subtracting both sides by 36000 we get:


Thus, the amount invested at 5% is $2250
Therefore, the amount invested at 6% will be $(6000-2250)=$3750
2.35n is equivalent. 2n + n is 3n, and 3n - 0.65n is 2.35n