Friday

November 28, 2014

November 28, 2014

Posted by **bryan** on Sunday, January 27, 2013 at 8:05pm.

1) write an algebraic expression for the amount of money invested at 4.5%

2) write an algebraic expression for the interest on ($×) at 11.5% for one year

3)write and simplify an expression for the total interest earned on the whole investment of $9000 after one whole year.

4) if you pay government tax on your interest at a rate fo 33 cents in the dollarwrite and simplify an expression for the amount of money that you receive from your interest after one year,after teh tax is paid.

- maths -
**Henry**, Tuesday, January 29, 2013 at 9:26pm1. $(9000-x) @ 4.5%

2. 0.115*X

3. 0.115X + 0.045(9000-X).

0.115x + 405 - 0.045x

0.07x + 405.

4. 100% - 33% = 67% to Investor.

0.67(0.07x+405) = 0.047x + 19. = Amt.

received by investor.

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