Question 14140: Hi Tutors:
Word prolems are a work in progress for me. Please show me how to work this one:
A business club split a $30,000 investment among three bond funds. The first one grew at 2%, the second at 3% and the third at 6%. The total earnings were $1,110. The earnings from the second fund were $150 more than those of the first. How much was invested in each fund?
Answer by longjonsilver(2297)   (Show Source):
You can put this solution on YOUR website! x+y+z = 30000 --eqn1
0.02x + 0.03y + 0.06z = 1110 --eqn2
0.03y = 0.02x + 150 --eqn3
OK... multiply eqn 1 by 0.06 then subtract eqn2, leaving 0.04x + 0.03y = 690 --eqn4
Now rearragne eqn3 around and then add it to eqn4, giving x = 9000.
Then find y and z as per the other Q.
jon.
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