Answer:
$12000 should be invested in a fund with a 4% return.
Step-by-step explanation:
Consider the provided information.
An amount of $15,000 is invested in a fund that has a return of 6%.
We need to calculate how much money is invested in a fund with a 4% return if the total return on both investments is $1380.
Let $x should be invested in a fund with a 4% return.
The above information can be written as:
[tex]1380=15000\times 6\%+x\times 4\%[/tex]
[tex]1380=15000\times \frac{6}{100}+x\times \frac{4}{100}[/tex]
[tex]1380=150\times6+x\times 0.04[/tex]
[tex]1380-900=0.04x\\480=0.04x\\x=12000[/tex]
Hence, $12000 should be invested in a fund with a 4% return.
