document.write( "Question 275660: (100P-4,000)/100p=.40 , solve for p \n" ); document.write( "
Algebra.Com's Answer #201065 by checkley77(12844)\"\" \"About 
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(100P-4,000)/100p=.40 cross multiply
\n" ); document.write( "100p*.40=100p-4,000
\n" ); document.write( "40p-100p=-4,000
\n" ); document.write( "-60p=-4,000
\n" ); document.write( "p=-4,000/-60
\n" ); document.write( "p=200/3 ans.
\n" ); document.write( "Proof:
\n" ); document.write( "(100*200/3-4,000)/(100*200/3)=.4
\n" ); document.write( "(20,000/3-4,000)/(20,000/3)=.4
\n" ); document.write( "(20,000-4,000*3)/3*3/20,000=.4
\n" ); document.write( "(20,000-12,000)/3*3/20,000=.4
\n" ); document.write( "8,000/3*3/20,000=.4
\n" ); document.write( "24,000/60,000=.4
\n" ); document.write( ".4=.4\r
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