document.write( "Question 1099869: a 6 foot long pipe has an outside diameter of 2.50 inches and the volume of the pipe is equal to 429 cubic inches. find the wall thickness? \n" ); document.write( "
Algebra.Com's Answer #714372 by josgarithmetic(39627)\"\" \"About 
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Entire outside volume, \"6pi%2A%282.5%2F2%29%5E2=6%2Api%2A%285%2F4%29%5E2\", cubic centimeters.
\n" ); document.write( "You do not really need all this; you only need to know the 1.25 cm radius.\r
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\n" ); document.write( "\n" ); document.write( "INSIDE volume for empty space EXCLUDING the wall, \"6pi%2Ar%5E2=429\"\r
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\n" ); document.write( "\n" ); document.write( "What is the wall's thickness? Solve for r and then find \"5%2F4-r\".
\n" ); document.write( "Or \"1.25-r\".
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