Problema Solution

A bank loaned out $66000, part of it at 9% per year and the rest at 4% per year. If the interest received was $4190, how much was loaned at 9%?

Answer provided by our tutors

Let


x = the amount loaned at 9%


y = the amount loaned at 4%


x + y = 66000


0.09x + 0.04y = 4190

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x = $31,000


y = $35,000


$35,000 was loaned at 9%.