Tuesday

September 16, 2014

September 16, 2014

Posted by **margie o** on Tuesday, October 20, 2009 at 3:59pm.

15. You deposit $1500 to start a bank account that gives 5.4% interest, compounded annually. If you do not touch the account, how much will you have after 3 years? Make sure you round your answer to the nearest cent.=$1763.79

16. You find an old savings bond that originally cost $50. It has been compounding 3% interest annually for the last 75 years. How much is it worth? Make sure you round your answer to the nearest cent.=$474.39

- Math -
**jim**, Tuesday, October 20, 2009 at 4:47pm14. I don't get the same answer.

a) Get size of property = 188 * 100 = 18800

b) Get size of lake = pi * 36^2 = 4069.44

c) Get size of island = pi * 12^2 = 452.16

d) Covered in water = (b) - (c)

Percentage = (d) / (a)

15. I don't get exactly this answer either, but very close - about $7 less. I don't think that the difference is due to rounding, but I'm not completely sure.

16. I don't get exactly this answer either. 1.03^75 = 9.1789. 9.1789 * 50 = 459.

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