document.write( "Question 1078439: Brendan plans to plow a field in one day. Before lunch he plows 28 acres, which is 70% of the field. how many acres will he have to plow after lunch in order to finish the field? \n" ); document.write( "
Algebra.Com's Answer #692884 by Boreal(15235)\"\" \"About 
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28 acres is 70%
\n" ); document.write( "28:70 as x:30 is one way
\n" ); document.write( "28/70=x/30
\n" ); document.write( "cross-multiply and 840=70x; x=12 acres.
\n" ); document.write( "Another is 28:70 as x:100, the whole field. This will lead to 40 acres for the whole field or 12 acres after lunch.
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