document.write( "Question 1193434: The inside dimensions of a trunk are 5 ft., 4ft.,3 ft. Find the dimensions of a trunk similar in the shape that will hold 6 times as much.
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document.write( "Pls. can anyone help me? \n" );
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Algebra.Com's Answer #825452 by Boreal(15235)![]() ![]() You can put this solution on YOUR website! the new trunk has to have volume 360 ft^2. Let x=the amount that has to be added in feet. \n" ); document.write( "the dimensions will be (5+x)(4+0.8x)(3+0.6x), to keep the same shape. \n" ); document.write( "This is 0.48x^3+7.2x2+36x+60=360 \n" ); document.write( "I get the 0.8 because the width is 4/5 of the length. This gives the same result as the cube root of 6. So 0.8x/1x is 4/5 and 0.6 to 1 x is 3/5 and 3/4 compared to the other.\r \n" ); document.write( "\n" ); document.write( "x=4.086 ft. \n" ); document.write( "the dimensions are 9.086 ft*7.2686 ft.*5 4516 ft.=360.04 ft^3\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( " \n" ); document.write( " \n" ); document.write( " |