document.write( "Question 1111662: 60, 30, 20, 15, \n" ); document.write( "
Algebra.Com's Answer #726646 by KMST(5328)\"\" \"About 
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60, 30, 20, 15, 12.5, 11.25, ...
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\n" ); document.write( "The first differences for 60, 30, 20, 15 are
\n" ); document.write( "60 - 30 = 20,
\n" ); document.write( "30 - 20 = 10,
\n" ); document.write( "20 - 15 = 5
\n" ); document.write( "Each difference is half of the difference before.
\n" ); document.write( "The next differences would be
\n" ); document.write( "\"5%2F2=2.5\" ,
\n" ); document.write( "\"2.5%2F2=1.25\" , etc.
\n" ); document.write( "so, the next two terms are
\n" ); document.write( "\"15-2.5=12.5\" and \"12.5-1.25=11.25\" .
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