document.write( "Question 289868: A series of 7 books are published at 9 – year intervals. When the 7th book was published, the sum of the publication years was 13601. In what year was the 5th book published?\r
\n" ); document.write( "\n" ); document.write( "(a)1907 (b) 1970 (c) 1934 (d) 1943 (e) None of the above
\n" ); document.write( "
\n" ); document.write( "

Algebra.Com's Answer #209866 by richwmiller(17219)\"\" \"About 
You can put this solution on YOUR website!
7*1900=13300
\n" ); document.write( "13601-13300=301
\n" ); document.write( "301/9=33 4/9
\n" ); document.write( "9*33=297
\n" ); document.write( "301-297=4\r
\n" ); document.write( "\n" ); document.write( "7*x+7*9+6*9+5*9+4*9*3*9+2*9+9\r
\n" ); document.write( "\n" ); document.write( "7*9+6*9+5*9+4*9*3*9+2*9+9
\n" ); document.write( "(7+6+5+4+3+2+1)*9
\n" ); document.write( "28*9+7x=301
\n" ); document.write( "x=7
\n" ); document.write( "1907
\n" ); document.write( "1916
\n" ); document.write( "1925
\n" ); document.write( "1934
\n" ); document.write( "1943
\n" ); document.write( "answer 1943 for 5th
\n" ); document.write( "
\n" );