document.write( "Question 425102: can you please help me with this word problem?
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document.write( "you have a rectangular piece of wrapping paper whose perimeter is at most 20 inches. You want to use it to cover a cubical box of length of two inches. sketch the graph that shows the possible area of the paper. can you cover the box?
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document.write( "i really don't under stand where to start. I tried multiplying 2(inches) by 6(sides) and getting 12 but i don't get how to graph the area.
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document.write( "thank you in advance
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document.write( "izzy \n" );
document.write( "
Algebra.Com's Answer #296125 by stanbon(75887)![]() ![]() ![]() You can put this solution on YOUR website! You have a rectangular piece of wrapping paper whose perimeter is at most 20 inches. You want to use it to cover a cubical box of length of two inches. sketch the graph that shows the possible area of the paper. can you cover the box? \n" ); document.write( "i really don't under stand where to start. I tried multiplying 2(inches) by 6(sides) and getting 12 but i don't get how to graph the area. \n" ); document.write( "----------------- \n" ); document.write( "Each of the 6 faces of the cube is 2\"x2\" = 4 sq.in. \n" ); document.write( "6*4 sq.in. = 24 in^2 is the area of wrapping paper needed to cover the cube. \n" ); document.write( "-------------- \n" ); document.write( "If the perimeter of the paper is 20\". \n" ); document.write( "Perimeter = 2(length + width) \n" ); document.write( "20 = 2(length+*width) \n" ); document.write( "length + width = 10 in \n" ); document.write( "length = 10-width \n" ); document.write( "--- \n" ); document.write( "Area = length*width \n" ); document.write( "Area = (10-w)(w) \n" ); document.write( "--- \n" ); document.write( "Solve: w(10-w) >= 24 \n" ); document.write( "-- \n" ); document.write( "-w^2+10w-24 >= 0 \n" ); document.write( "--- \n" ); document.write( "w^2-10w+24<= 0 \n" ); document.write( "(w-6)(w-4) <= 0 \n" ); document.write( "Positive solution: \n" ); document.write( "width = 6 inches \n" ); document.write( "length = 4 inches \n" ); document.write( "---- \n" ); document.write( "Conclusion: The area of the paper is large enough \n" ); document.write( "cover the cube. \n" ); document.write( "================================ \n" ); document.write( "Cheers, \n" ); document.write( "Stan H. \n" ); document.write( "============= \n" ); document.write( " |