document.write( "Question 1159341: hello, how are you? i need a help please :
\n" ); document.write( "Driving at a speed of 40 km / h, you need half an hour to reach the home. With what speed do you have to drive to get home in 20 minutes?
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Algebra.Com's Answer #782338 by ikleyn(52781)\"\" \"About 
You can put this solution on YOUR website!
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\n" ); document.write( "\n" ); document.write( "You do not need to know or to use algebra for it.\r
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\n" ); document.write( "\n" ); document.write( "Arithmetic and common sense are just enough . . . \r
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\n" ); document.write( "\n" ); document.write( "Arithmetic PLUS common sense.\r
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\n" ); document.write( "\n" ); document.write( "A bit of Arithmetic and a bit of common sense.\r
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