document.write( "Question 937225: An investment of $2500 is made at an annual simple interest rate of 5.5%. How much additional money must be invested at an annual simple interest rate of 8% so that the total interest earned is 7% of the total investment? \n" ); document.write( "
Algebra.Com's Answer #570667 by TimothyLamb(4379)\"\" \"About 
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x = amount invested at 5.5%
\n" ); document.write( "y = amount invested at 8%
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\n" ); document.write( "x = 2500
\n" ); document.write( "0.055x + 0.08y = 0.07*(2500 + y)
\n" ); document.write( "0.055x + 0.08y = 0.07*2500 + 0.07y
\n" ); document.write( "0.055x + 0.01y = 175
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\n" ); document.write( "put the system of linear equations into standard form
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\n" ); document.write( "x = 2500
\n" ); document.write( "0.055x + 0.01y = 175
\n" ); document.write( "---
\n" ); document.write( "copy and paste the above standard form linear equations in to this solver:
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\n" ); document.write( "---
\n" ); document.write( "solution:
\n" ); document.write( "x = amount invested at 5.5% = 2500
\n" ); document.write( "y = amount invested at 8% = 3750
\n" ); document.write( "---
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