Solve the problem by writing an appropriate system of equations and using the inverse of the coefficient matrix to solve the system.A $100,000 trust is to be invested in bonds paying 8%, CDs paying 7%, and mortgages paying 10%. The bond and CD investment must be triple the mortgage investment. To earn an $8000 annual income from the investments, how much should the bank invest in bonds?
A. $50,000
B. $30,000
C. $25,000
D. $15,000
Answer: C
Mathematics
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Determine if the ordered pair is a solution to the given inequality.6x + 4y ? 40; (4, 4)
A. Yes B. No
Mathematics
Evaluate the function.Given f(x) = -17x + 4, find f(13).
A. -217 B. -225 C. -17 D. 225
Mathematics
Solve the problem. Round to the nearest cent.The unpaid balance in an account on November 1 was $111. A payment of $20 was made on November 9. The interest rate per month was 1.65% per month of the average daily balance. Find the finance charge for the month of November.
A. $1.60 B. $1.50 C. $1.59 D. $3.33
Mathematics
Determine the most appropriate metric unit to go in the blank. Choose from L, ml, kg, g, and mg.The volume of coffee in the cup is 193 
.
A. mL B. g C. mg D. L E. kg
Mathematics