document.write( "Question 807731: a store sells small notebooks for $6 and large notebooks for $10. if a student buys 6 notebooks and spends $48 how many of each size did he buy? \n" ); document.write( "
Algebra.Com's Answer #486532 by josgarithmetic(39618)![]() ![]() ![]() You can put this solution on YOUR website! Let x = how many small \n" ); document.write( "Let y = how many large\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "SIX NOTEBOOKS: x+y=6\r \n" ); document.write( "\n" ); document.write( "SPENT $48: 6x+10y=48\r \n" ); document.write( " \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "Various ways to solve. One method can be, simplify the money equation. \n" ); document.write( "3x+5y=24. \n" ); document.write( "Multiply the notebook count equation by 3 to get 3x+3y=18 and subtract this equation from the simplified money equation: \n" ); document.write( "(3x+5y)-(3x+3y)=24-18 \n" ); document.write( "and solve .... first for y. \n" ); document.write( "...! \n" ); document.write( "Can you do that, and then continue for finding x. \n" ); document.write( " |