Set up the system of equations and then solve it by using an
inverse matrix.
A trust account manager has $2,000,000 to be invested in three
different accounts. The accounts pay 6%, 8%, and 10%, and the goal
is to earn $168,000 with the amount invested at 10% equal to the
sum of the other two investments. To accomplish this, assume that
x dollars are invested at 8%, y dollars at 10%,
and z dollars at 6%. Find how much should be invested in
each account to satisfy the conditions.
8% rate | $ |
10% rate | $ |
6% rate | $ |
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Set up the system of equations and then solve it by using an inverse matrix. A...
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