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Mathematics 14 Online
OpenStudy (anonymous):

Matilda invested $5000. She earned $308 in interest by putting part of it in her savings account that pays 4% interest and the remainder in stocks that yielded 7%. Which system of equations can be used to determine how much she invested at each rate? A. X+y=5000 0.7x + 0.4y=308 B. x+y=5000 4x + 7y=308 C. X-y= 5000 0.04x + 0.07y= 308 D. X+y= 5000 0.04x+ 0.07y=308

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