document.write( "Question 355108: Nadine found a wallet which contains 1560 pesos in P10 and P20 bills. If there are 110 bills in all, how many bills of each kind were there? \n" ); document.write( "

Algebra.Com's Answer #253632 by robertb(5830) $\"\"$ $\"About$

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Let x = # 10 peso bills. Then 110 - x = # 20 peso bills.
\n" ); document.write( "Also $\"10x%2B20%28110-x%29+=+1560\"$ ,
\n" ); document.write( " $\"x+%2B+2%28110-x%29+=+156\"$ , after dividing by 10.
\n" ); document.write( " $\"x%2B220-2x=156\"$ ,
\n" ); document.write( " $\"-x=-64\"$ ,
\n" ); document.write( " $\"x+=+64\"$ . So there are 64 10-peso bills, and 46 20-peso bills. \n" ); document.write( "

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