Problema Solution
Marty invested $9000 in stocks and bond. The stocks paid 5% and the bonds 8% giving an annual income of $525. how much did he invest in bonds
Answer provided by our tutors
let
s = the money invested in stocks
b = the money invested in bonds
Marty invested $9000 in stocks and bond
s + b = 9000
the stocks paid 5% and the bonds 8% giving an annual income of $525
0.05s + 0.08b = 525
by solving the system of equations
s + b = 9000
0.05s + 0.08b = 525
we find
s = $6,500
b = $2,500
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Marty invested $2,500 in bonds.