document.write( "Question 165274: 1. what is the approximate weight of oil in a container 3 feet high and 9 inches in diameter? (oil weighs approximately 55 pounds per cubic foot).\r
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document.write( "2. find the area of a rectange which measures 12 feet, 3 inches by 3 feet, 9 inches. The correct answer expressed in square feet is?\r
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document.write( "3.the diameter of a circle is 6 feet, 3 inches. what is the circumference of the circle? NOTE: to convert decimal fractions to inches in this problem, multiply by 12. \n" );
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Algebra.Com's Answer #121842 by nerdybill(7384)![]() ![]() You can put this solution on YOUR website! 1. what is the approximate weight of oil in a container 3 feet high and 9 inches in diameter? (oil weighs approximately 55 pounds per cubic foot). \n" ); document.write( "volume of container = (pi)r^2 * height \n" ); document.write( "radius = 1/3(diameter) = 4.5 inches \n" ); document.write( "Convert that into feet: 4.5 / 12 = 0.375 feet \n" ); document.write( ". \n" ); document.write( "volume of container = (pi)r^2 * height \n" ); document.write( "volume of container = (3.14)(0.375)^2 * 3 = 1.3246875 cubic feet \n" ); document.write( ". \n" ); document.write( "\"volume\" * 55 = 1.3246875 * 55 = 72.86 pounds \n" ); document.write( ". \n" ); document.write( "2. find the area of a rectange which measures 12 feet, 3 inches by 3 feet, 9 inches. The correct answer expressed in square feet is? \n" ); document.write( ". \n" ); document.write( "convert 12 feet 3 inches to feet: \n" ); document.write( "12 + 3/12 = 12 + 1/4 = 48/4 + 1/4 = 49/4 feet \n" ); document.write( ". \n" ); document.write( "convert 3 feet, 9 inches: \n" ); document.write( "3 + 9/12 = 3 + 3/4 = 12/4 + 3/4 = 15/4 \n" ); document.write( ". \n" ); document.write( "Area then is: \n" ); document.write( "(49/4)(15/4) = 735/16 = 45.94 square feet \n" ); document.write( ". \n" ); document.write( "3.the diameter of a circle is 6 feet, 3 inches. what is the circumference of the circle? NOTE: to convert decimal fractions to inches in this problem, multiply by 12. \n" ); document.write( "Circumference = (pi)d \n" ); document.write( "where \n" ); document.write( "pi is 3.14 \n" ); document.write( "d is diameter \n" ); document.write( ". \n" ); document.write( "Convert 6 feet, 3 inches to feet: \n" ); document.write( "6 + 3/12 = 6 + 1/4 = 24/4 + 1/4 = 25/4 feet \n" ); document.write( ". \n" ); document.write( "Circumference = (pi)d = (3.14)(25/4) = 78.5/4 = 19.625 feet \n" ); document.write( "or in inches: \n" ); document.write( "19.625 * 12 = 235.5 inches \n" ); document.write( " \n" ); document.write( " |