Question 552489
x = the amont invested in each interest rate
the amount(x) + the interest rate(.04x) added to the amount(x)+the interest rate (.07x)=total for the year(30000)
{{{1.04x+1.07x=30000}}}
{{{2.11x=30000}}}
{{{14218.01=x}}}

check
.04x=568.72
568.72+14218.01
14786.73
and
.7x=995.26
995.26+14218.01
15213.27
so 14786.73+15213.27=30,000
correct