document.write( "Question 1157163: A rectangular piece of cardboard, whose area is 143 square centimeters, is made into an open box by cutting a 2-centimeter square from each corner and turning up the sides. If the box is to have a volume of 126 cubic centimeters, what size cardboard should you start with? \n" ); document.write( "
Algebra.Com's Answer #779980 by josgarithmetic(39630) ![]() You can put this solution on YOUR website! You can try to draw the figure and label the parts. \n" ); document.write( "If x is one dimension and y the other dimension of the cardboard, then\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( " \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "Substituting for y and doing the algebra steps: \n" ); document.write( " \n" ); document.write( "\n" ); document.write( ".\r \n" ); document.write( "\n" ); document.write( ".\r \n" ); document.write( "\n" ); document.write( " \n" ); document.write( " \n" ); document.write( "\n" ); document.write( " \n" ); document.write( "\n" ); document.write( "Dimensions of the piece of cardboard, 13 and 11 \n" ); document.write( " |