a + b= 17,000 ------> a = 17,000 - b
0.07a + 0.09b = 1410
Substitute!
0.07(17,000 - b) + 0.09b = 1410
Solve for b, then plug your answer into the 1st equation and solve for a.
Shamus P.
asked • 01/21/18How much was interest at each rate?
you invested 17000 into two accounts paying 7% and 9% annual interest, respectively. if the total interest earned for the year was $1410, how much was interest at each rate?
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David W.
01/21/18