document.write( "Question 600359: What is the missing numbers in the sequence 9 ? 29 39 ? 59 \n" ); document.write( "
Algebra.Com's Answer #379270 by jim_thompson5910(35256)\"\" \"About 
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Going from 29 to 39, you're increasing by 10. \r
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\n" ); document.write( "\n" ); document.write( "So add 10 to the first term 9 to get: 9+10 = 19\r
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\n" ); document.write( "\n" ); document.write( "So the second term is 19\r
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\n" ); document.write( "\n" ); document.write( "Add 10 to 39 to get: 39+10 = 49\r
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\n" ); document.write( "\n" ); document.write( "So the fourth term is 49
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