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#36629

money

linear equations

systems

hard

90 sec

An investor has a total of $10,000 to invest in two different funds. Fund A offers an annual interest rate of 4%, and Fund B offers an annual interest rate of 6%. If the investor earned a total of $520 in interest from both funds after one year, which system of equations can be used to determine $x$ , the amount invested in Fund A, and $y$ , the amount invested in Fund B?

A.

${x + y = 10, 000 0.04 x + 0.06 y = 520$

B.

${x + y = 520 0.04 x + 0.06 y = 10, 000$

C.

${x + y = 10, 000 4 x + 6 y = 520$

D.

${0.04 x + 0.06 y = 10, 000 x + y = 520$