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
\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?\r
\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( "

Algebra.Com's Answer #121842 by nerdybill(7384)\"\" \"About 
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( "
\n" );