At the beginning of last year, Mr. Lam put money into three investments. He put a dollars into investment A and b dollars into investment B. Last year investment A earned 3.85% interest while investment B earned 4.1% interest. He also invested c
dollars into investment C which lost 3.6% last year. His total earnings for the year were $62.50. Which equation shows this
situation?
A
0.0385a -0.041b + 0.036C = 62.50
B
0.0385a + 0.041 -0.036C = 62.50
0.0385a + 0.041b + 0.036C = 62.50
D
3.85a + 4.1b - 6.30 = 62.50