document.write( "Question 1010607:
\n" ); document.write( " Henry can build 2 birdhouses in 30 minutes. How many birdhouses can he build in four hours?
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Algebra.Com's Answer #626043 by stanbon(75887)\"\" \"About 
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Henry can build 2 birdhouses in 30 minutes. How many birdhouses can he build in four hours?
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\n" ); document.write( "Use a proportion::
\n" ); document.write( "houses/time = houses/time
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\n" ); document.write( "h/4 hrs = 2/(1/2 hrs)
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\n" ); document.write( "# of houses = 8/(1/2) = 16
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\n" ); document.write( "Cheers,
\n" ); document.write( "Stan H.
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