document.write( "Question 818601: A farmer planted 65% of his farmland with onions, 20% of his land with cotton, and the rest with soybeans. The soybeans are on 90 acres of land. How many acres of farmland does the farmer have? Solve with an equation.
\n" ); document.write( "I know the answer is 600 acres, I just don't know how to create an equation that would work to solve this. I used cross multiplication but the purpose of the lesson is to make an equation to solve it and I get stuck when i need to use percentages. Your help will be appreciated. Please and Thank You. \n" ); document.write( "

Algebra.Com's Answer #492665 by stanbon(75887) $\"\"$ $\"About$

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A farmer planted 65% of his farmland with onions, 20% of his land with cotton, and the rest with soybeans. The soybeans are on 90 acres of land. How many acres of farmland does the farmer have? Solve with an equation.
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\n" ); document.write( "Let \"x\" be the total acreage.
\n" ); document.write( "Equation:
\n" ); document.write( "soybeans = 100% - (65%+20%) = 15%
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\n" ); document.write( "15%*x = 90 acres
\n" ); document.write( "----
\n" ); document.write( "x = 90/0.15
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\n" ); document.write( "x = 600 acres
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\n" ); document.write( "Cheers,
\n" ); document.write( "Stan H.
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