document.write( "Question 1154156: Bob wants to buy 5 packages of batteries. He has $25 to spend. Each regular package of batteries costs $4.25 and each alkaline package of batteries costs $5.50. How many packages of each type of battery can he buy? *
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Algebra.Com's Answer #776537 by josmiceli(19441)\"\" \"About 
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Let \"+x+\" = number of pkgs reg batteries
\n" ); document.write( "\"+5+-+x+\" = number of pkgs alkaline batteries
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\n" ); document.write( "\"+4.25x+%2B+%28+5+-+x+%29%2A5.5+=+25+\"
\n" ); document.write( "\"+4.25x+%2B+27.5+-+5.5x+=+25+%7D%7D%0D%0A%7B%7B%7B+1.25x+=+2.5+\"
\n" ); document.write( "\"+x+=+2+\"
\n" ); document.write( "and
\n" ); document.write( "\"+5+-+2+=+3+\"
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\n" ); document.write( "2 pks reg batts
\n" ); document.write( "3 pkgs alk batts
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\n" ); document.write( "check:
\n" ); document.write( "\"+4.25x+%2B+%28+5+-+x+%29%2A5.5+=+25+\"
\n" ); document.write( "\"+4.25%2A2+%2B+3%2A5.5+=+25+\"
\n" ); document.write( "\"+8.5+%2B+16.5+=+25+\"
\n" ); document.write( "\"+25+=+25+\"
\n" ); document.write( "OK
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