You invested a total of $25000 at 3% and 4.5% simple interest. During one year, the two accounts earned $900. How much did you i

Question

Anuta_ua [19.1K]

4 years ago

15

You invested a total of $25000 at 3% and 4.5% simple interest. During one year, the two accounts earned $900. How much did you i

nvest in each account?

Mathematics

1 answer:

Sedaia [141] · Answer 1 · 2021-11-17T03:23:18+03:00

Sedaia [141]4 years ago

4 0

A:amount of money invested in the account with 3% simple interest
B: amount of money invested in the account with 4.5% simple interest
a+b=25000 ——>a=25000-b

0.03a+0.045b=900
30a+45b=900000
2a+3b=60000

2(25000-b)+3b=60000
50000-2b+3b=60000
B=10000
A=25000-10000=15000