Question

Walt made an extra $10,000 last year from a part time job. He invested part of the money at 2% and the rest at 3.75%. He made a total of $270.00 in interest. How much was invested at 2%? Walt invested $ at 2%?

Answer 1

$4000

Explanation:

.0375x + .02(10000-x) = 270

.0375x + 200-.02x = 270

.0175x + 200 = 270

.0175x = 70

x = 70/.0175

x = $4000 (answer)