document.write( "Question 1205652: Isabel invested her savings in two investment funds. The amount she invested in Fund A was $6000 less than the amount she invested in Fund B. Fund A returned a 7% profit and Fund B returned a 4% profit. How much did she invest in Fund B, if the total profit from the two funds together was $1780? \n" ); document.write( "
Algebra.Com's Answer #842588 by math_tutor2020(3817)\"\" \"About 
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\n" ); document.write( "x = amount invested in fund B
\n" ); document.write( "x-6000 = amount invested in fund A\r
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\n" ); document.write( "\n" ); document.write( "0.07(x-6000) = profit from fund A
\n" ); document.write( "0.04x = profit from fund B\r
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\n" ); document.write( "\n" ); document.write( "0.07(x-6000)+0.04x = total profit
\n" ); document.write( "0.07(x-6000)+0.04x = 1780
\n" ); document.write( "0.07x-420+0.04x = 1780
\n" ); document.write( "0.11x-420 = 1780
\n" ); document.write( "0.11x = 1780+420
\n" ); document.write( "0.11x = 2200
\n" ); document.write( "x = 2200/0.11
\n" ); document.write( "x = 20000 is the amount invested with fund B.\r
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\n" ); document.write( "\n" ); document.write( "x-6000 = 20000-6000 = 14000 is the amount invested with fund A.
\n" ); document.write( "7% of A + 4% of B = 0.07*14000 + 0.04*20000 = 1780 total profit.
\n" ); document.write( "This confirms we have the correct answer.\r
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\n" ); document.write( "\n" ); document.write( "Answer: $20,000 invested with fund B.
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