Question 1107249
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One single equation in one single unknown B = How much of the $30k did he invest in bonds


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interest  +  interest      = total interest
on bonds     on stocks


0.06*B    + 0.12*(30000-B) = 2460.


Simplify and solve for B.


0.06*B + 3600 - 0.12*B = 2460

-0.06*B = 2460 - 3600 = -1140  ====>  B = {{{(-1140)/(-0.06)}}} = 19000.


<U>Answer</U>.  $19000 was invested in bonds.
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