document.write( "Question 850133: if the 5th term & 8th term =30 & if the 25th term is 3 times the 9th term . Find the ap \n" ); document.write( "
Algebra.Com's Answer #513263 by richwmiller(17219)\"\" \"About 
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a + 4d+ a +7d=30,
\n" ); document.write( "2a+11d=30,
\n" ); document.write( " a + 24d=3*(a + 8d)
\n" ); document.write( "a + 24d=3a + 24d\r
\n" ); document.write( "\n" ); document.write( "a = 0, d = 30/11
\n" ); document.write( "an=(n-1)*(30/11)\r
\n" ); document.write( "\n" ); document.write( "a5=(4)*(30/11)=120/11
\n" ); document.write( "a8=(7)*(30/11)=210/11
\n" ); document.write( "a9=8*30/11=240/11
\n" ); document.write( "a25=24*30/11=720/11\r
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