document.write( "Question 480119: Sue is starting a lawn-cutting business. Her start-up cost to buy two lawn mowers and an edge trimmer is $665. She has figured out that she will use about $1 in gas for each lawn. If she charges $20 per lawn, what will her break-even point be?\r
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\n" ); document.write( "\n" ); document.write( "I have to use the substitution method to solve it
\n" ); document.write( "But I am having trouble trying to figure out the two equations
\n" ); document.write( "I think one equation might be 2x+t=665 \n" ); document.write( "
Algebra.Com's Answer #328865 by nerdybill(7384)\"\" \"About 
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Sue is starting a lawn-cutting business. Her start-up cost to buy two lawn mowers and an edge trimmer is $665. She has figured out that she will use about $1 in gas for each lawn. If she charges $20 per lawn, what will her break-even point be?
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\n" ); document.write( "Let n = number of lawns mowed
\n" ); document.write( "\"revenue\" = 20n
\n" ); document.write( "\"cost\" = n + 665
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\n" ); document.write( "Break even point is when\"
\n" ); document.write( "\"cost\" = \"revenue\"
\n" ); document.write( "n + 665 = 20n
\n" ); document.write( "665 = 19n
\n" ); document.write( "35 = n
\n" ); document.write( "she will have to mow 35 lawns to break even \n" ); document.write( "
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