We have that how much money she invested in each account is
x=13600
y=10400
From the question we are told that
Hence
x+y=24000.....1
Generally the equation for the interest earned is mathematically given as
[tex]\frac{3x}{100}+\frac{7y}{100}=1000[/tex]
[tex]2x+7y=100000[/tex].....2
Solving both equ 1 and 2 simultaneously
x=13600
y=10400
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