document.write( "Question 1151907: a hire tool firm finds that their net return from hiring tools is decreasing by 10percent per annum .if their net gain on certain tool this year is Tanzanian shillings 400,000/= find the possible total of all future profits from this tool (assuming the tool lasts forever) \n" ); document.write( "

Algebra.Com's Answer #773792 by ikleyn(52803) $\"\"$ $\"About$

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document.write( "The possible total of all future profits from this tool (assuming the tool lasts forever) is the sum of this infinite geometric progression\r\n" );
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document.write( "    400000*0.9 + 400000*0.9^2 + 400000*0.9^3 + . . . =  400000*(0.9 + 0.9^2 + 0.9^3 + . . . ) =  =  = \r\n" );
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document.write( "    = 400000*9 = 3600000 dollars.    ANSWER\r\n" );
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