SOLUTION: At the beginning of last year, Mrs. Maertens put money into three investments. She put a dollars into investment A and b dollars into investment B. Last year investment A earned 5.
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Question 1095754: At the beginning of last year, Mrs. Maertens put money into three investments. She put a dollars into investment A and b dollars into investment B. Last year investment A earned 5.05% interest while investment B earned 5.9% interest. He also invested c dollars into investment C which lost 4.2% last year. His total earnings for the year were $212.50. Which equation shows this situation?
A. 0.0505a-0.059b+0.042c=212.50
B. 0.0505a+0.059b-0.042c=212.50
C. 0.0505a+0.059b+0.042c=212.50
D. 5.05a+5.9b-4.2c=212.50 Answer by mananth(16946) (Show Source):
