document.write( "Question 1091897: A Chinese restaurant has a large goldfish pond. Suppose that an inlet pipe and a hose together can fill the pond in 7 hours. The inlet pipe alone can complete the job in one hour less time than the hose alone. Find the time that the hose can complete the job alone. \n" ); document.write( "
Algebra.Com's Answer #706393 by josgarithmetic(39616)\"\" \"About 
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x, time for the hose alone\r
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\n" ); document.write( "\n" ); document.write( "\"1%2F%28x-1%29%2B1%2Fx=1%2F7\"\r
\n" ); document.write( "\n" ); document.write( "-\r
\n" ); document.write( "\n" ); document.write( "\"7x%2B7%28x-1%29=x%28x-1%29\"
\n" ); document.write( "\"7x%2B7x-7=x%5E2-x\"
\n" ); document.write( "\"14x-7=x%5E2-x\"
\n" ); document.write( "\"x%5E2-15x%2B7=0\"\r
\n" ); document.write( "
\n" ); document.write( "\n" ); document.write( "\"x=%2815%2B-+sqrt%28225-4%2A7%29%29%2F2\"
\n" ); document.write( "(only one alternative will be right.)
\n" ); document.write( ".\r
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