Dakota invests $12000 in two accounts, the first pays 6% simple interest, the second pays 11% simple interest. At the end of a year he has earned $1120 in inter

Question

how would I solve for this 

Answer 1

Let S = amt at 6% and E the amt at 11%

 

S + E = 12000

.6E + .11E = 1120

 

6S + 6E = 72000

6E + 11E = 112000

 

5E = 40000

E = 8000

S = 4000