document.write( "Question 774165: A bank teller needs to pay out $75 using $5 bills and $20 bills. Find all possibilities for the number of each type of bill the teller could use.
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Algebra.Com's Answer #472086 by josgarithmetic(39630) ![]() You can put this solution on YOUR website! Use x for the $5 size and y for the $20 size count of each bill type.\r \n" ); document.write( "\n" ); document.write( " \n" ); document.write( "Simplify... \n" ); document.write( "\n" ); document.write( "The count of x should be more than the count of y, so you could just solve the equation for y, and check the whole number results for x values starting at 1. Some will work and some will fail.\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "The easier way to do this is start with \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "Each \n" ); document.write( "Bill \n" ); document.write( "Count____$5______$20 \n" ); document.write( "------------------------------ \n" ); document.write( "_________15______0 \n" ); document.write( "_________11______1 \n" ); document.write( "_________7_______2 \n" ); document.write( "_________3_______3 \n" ); document.write( " |