document.write( "Question 1067178: the daughter can mow the lawn in 30 minutes her father can mow the lawn in 40 minutes the daughter works for 10 minutes before the father begins to help how long do they work together to complete the job \n" ); document.write( "
Algebra.Com's Answer #682374 by josgarithmetic(39625)\"\" \"About 
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Daughter: \"1%2F30\"
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\n" ); document.write( "\n" ); document.write( "Father helps for some \"t\" minutes:
\n" ); document.write( "\"%281%2F30%29%2A10%2B%281%2F30%2B1%2F40%29%2At=1\"
\n" ); document.write( "Solve for t.
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