Solve the problem.Linda invests $25,000 for one year. Part is invested at 5%, another part at 6%, and the rest at 8%. The total income from all 3 investments is $1600. The total income from the 5% and 6% investments is equal to the income from the 8% investment. Find the amount invested at each rate.
A. $5000 at 5%, $10,000 at 6%, $10,000 at 8%
B. $10,000 at 5%, $10,000 at 6%, $5000 at 8%
C. $10,000 at 5%, $5000 at 6%, $10,000 at 8%
D. $8000 at 5%, $10,000 at 6%, $7000 at 8%
Answer: C
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Bank A pays 5% per year compounded monthly on investments. Bank B pays 5% per year compounded weekly on investments. In which bank should I invest my money?
What will be an ideal response?
Solve the problem.Cindy wants to secure sequins on a piece of felt shaped like a trapezoid with a height of 9 cm and bases of 14 cm and 8 cm. What is the cost of all the sequins if sequins cost $0.70 per cm2 of coverage?
A. $69.30 B. $64.40 C. $28.00 D. $21.70
Solve the problem.The function f(t) = -0.14t2 + 0.49t + 30.5 models the U.S. population in millions, ages 65 and older, where t represents years after 1990. The function g(t) = 0.54t2 + 12.06t + 107.2 models the total yearly cost of Medicare in billions of dollars, where t represents years after 1990. What does the function 
represent? Find 
(15).
A. Cost per person in thousands of dollars. $0.02 thousand B. Cost per person in thousands of dollars. $7.78 thousand C. Cost per person in thousands of dollars. $0.17 thousand D. Cost per person in thousands of dollars. $64.50 thousand
Solve the problem.The following scatter diagram shows heights (in inches) of children and their ages.Height (inches)
Age (years)Based on this data, how old do you think a child is who is about 39 inches tall?
A. 3 years B. 1 year C. 3 months D. 7 years