document.write( "Question 617437: 1. if a box is to be 2 feet high, and the width is to be three feet less than its length. If it needs to hold a volume of 80 cubic feet, find the length and width of the box.
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document.write( "Please help and show me how to solve this! I need an answer ASAP!!
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document.write( "Thanks! \n" );
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Algebra.Com's Answer #388331 by MathTherapy(10555)![]() ![]() You can put this solution on YOUR website! 1. if a box is to be 2 feet high, and the width is to be three feet less than its length. If it needs to hold a volume of 80 cubic feet, find the length and width of the box. \n" ); document.write( "Please help and show me how to solve this! I need an answer ASAP!! \n" ); document.write( "Thanks!\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "Volume of a rectangular prism (box) = length * width * height\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "Let length be L \n" ); document.write( "Then width = L - 3 \n" ); document.write( "Height = 2\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "We now have: Volume = length * width * height, OR \n" ); document.write( "80 = L(L - 3)(2)\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "80 = 2L(L - 3)\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( " \n" ); document.write( " \n" ); document.write( "\n" ); document.write( " \n" ); document.write( " \n" ); document.write( "\n" ); document.write( " \n" ); document.write( " \n" ); document.write( "\n" ); document.write( " \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "(L - 8)(L + 5) = 0\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "L, or length = \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "Since length = 8, then width = 8 - 3, or \n" ); document.write( "\n" ); document.write( " \n" ); document.write( "Send comments and “thank-yous” to “D” at MathMadEzy@aol.com \n" ); document.write( " |