Monday
September 1, 2014

Homework Help: maths

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

Suppose you have $9000 to invest and you invest part of it ($×) in a high risk venture at 11.5% per annum and the remainder with the bank at 4.5% per annum, both for one year.

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.

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