document.write( "Question 988366: a vending machine only takes quarters and loonies. if there are 100 coins and the total is 64$, how many of each coin is there?
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Algebra.Com's Answer #608932 by macston(5194)![]() ![]() You can put this solution on YOUR website! . \n" ); document.write( "L=number of loonies; Q=number of quarters=100-L \n" ); document.write( ". \n" ); document.write( "$1L+$.025Q=$64 \n" ); document.write( "$1L+$0.25(100-L)=$64 \n" ); document.write( "$1L+$25-$0.25L=$64 \n" ); document.write( "$0.75L=$39 \n" ); document.write( "L=52 ANSWER 1: There are 52 loonies. \n" ); document.write( "Q=100-L=100-52=48 ANSWER 2: There are 48 quarters, \n" ); document.write( ". \n" ); document.write( "CHECK: \n" ); document.write( "$1L+$.025Q=$64 \n" ); document.write( "$1(52)+$.025(48)=$64 \n" ); document.write( "$52+$12=$64 \n" ); document.write( "$64=$64 \n" ); document.write( " |