Question

$8,000 is invested in two different accounts earning 3% and 4% interest. If the two accounts earn a total of $295 in interest, how much money was invested at 3%?

Answer 1

Let T be the amount at 3%, and F be the amount at 4%.

The T investment will earn 3%*T or 0.03T
The F investment will earn 4%*F or 0.04F
We know that together they earn $295, and the total of T+F is $8,000.

T+F=8000
0.03T + 0.04F = 295
Solve those two equations for T and F.