document.write( "Question 163766: Paint Town sold 45 paintbrushes, one kind at $8.50 each and another at $9.75 each. In all, $398.75 was taken in for the brushes. How many of each kind were sold? \n" ); document.write( "
Algebra.Com's Answer #120641 by checkley77(12844)![]() ![]() ![]() You can put this solution on YOUR website! 9.75X+8.50(45-X)=398.75 \n" ); document.write( "9.75X+382.50-8.50X=398.75 \n" ); document.write( "1.25X=398.75-382.50 \n" ); document.write( "1.25X=16.25 \n" ); document.write( "X=16.25/1.25 \n" ); document.write( "X=13 OF THE $9.75 PAINT BRUSHES WERE SOLD. \n" ); document.write( "45-13=32 OF THE $8.50 PAINT BRUSHES WERE SOLD. \n" ); document.write( "PROOF: \n" ); document.write( "9.75*13+8.50*32=398.75 \n" ); document.write( "126.75+272=398.75 \n" ); document.write( "398.75=398.75 \n" ); document.write( " |