document.write( "Question 159142: How many washers can be made from a cube of metal 4 inches on a side if the washers are 5/8 inch in diameter and 1/6 inch thick?The hole in the center of the washers is 1/4 inch in diameter. \n" ); document.write( "
Algebra.Com's Answer #117270 by checkley77(12844)![]() ![]() ![]() You can put this solution on YOUR website! 4*4*4=64 cubic inches. \n" ); document.write( "area of washer=pir^2=3.14[(5/8)/2]^2=3.14*5/16^2=3.14*25/256=.3066 cubic inches. \n" ); document.write( "hole=pir^2=3.14^2=3.14*1/8^2=3.14*1/64=.049 cubic inches. \n" ); document.write( "volume of washer=.3066-.049=.2576 cubic inches. \n" ); document.write( "64/.2576=248.45 washer can be made. \n" ); document.write( " |