1.Two investments are made totaling P15, 000. Part of the P15,000 is invested at 9% and part at 10%. For a certain year, these investments yield P1, 432 in simple interest. Find the amount invested at each rate. 2. A sum of P25, 000 is invested, part at 8% and the remainder at 6%. Find the amount invested at each rate if the yearly income of the two investments is P1, 800. Activate Wir Segings to

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A: topic - quadratic equations

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