Problema Solution
an actor invests some money at 7% and $23000 more than four times the amount at 8%.The total annual interest earned from the investment is $57610
how much did he invest at each amount
Answer provided by our tutors
an actor invests some money at 7% and $23000 more than four times the amount at 8%.The total annual interest earned from the investment is $57610
let x- amount
.07x + .08(4x + 23000) = 57610
0.39x = 55770
x = $ 143000