The product of 84.12 and which number will have three decimal places? 4.22 10.51 14.163 19.3
2 answers:
You might be interested in
Answer:
x=400000\\y=600000\\z=1000000
Step-by-step explanation:
Given that 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 $172,000 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%.
The equations formed would be
Interest amount =
these three can be written in matrix form as
The inverse of the matrix is
X = A inverse *B
Using this we get