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Anuta_ua [19.1K]
3 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]3 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
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