Solve the problem.A trust account manager has $400,000 to be invested in three different accounts. The accounts pay 5%, 6%, and 10%, and the goal is to earn $32,000. Assuming that x dollars are invested at 5%, y dollars are invested at 6%, and z dollars are invested at 8%, what limits must there be on z so that all investment values are non-negative?
A. 200,000 ? z ? 240,000
B. 210,000 ? z ? 250,000
C. 150,000 ? z ? 180,000
D. 150,000 ? z ? 200,000
Answer: A
Mathematics
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