Posted by Anonymous on Sunday, October 16, 2011 at 5:08pm.
given that the first term of an Ap is 7 and its 10th term is twice the second term calculate the 19th term.

arithmetic progression  Reiny, Sunday, October 16, 2011 at 5:19pm
a = 7
a+9d = 2(a+d)
9d +a = 2a+ 2d
7d = a
7d=7
d=1
19th term = a+18d =7+18(1) = 25

arithmetic progression  Anonymous, Tuesday, January 29, 2013 at 4:24am
a=7,a+9d=2(a+d),9d+a=2a+2d,7d=9,7d= 7,d=1,19th term=a+18d=7+18(1)=25

arithmetic progression  PRAISE, Tuesday, March 4, 2014 at 11:05am
14
Answer This Question
Related Questions
 maths  Given that the first term of an A.P is 7 and its 10th term is twice its ...
 arithmetic  given that the first term of an Ap is 7 and its 10th term is twice ...
 math  The 3rd term of an Arithmetic Progression is 10 more than the first term ...
 Community technical college  Given that 1st term of an A.P is 7 and it's 10th ...
 arithmetic  Determining the first three terms of an ArithmetiC progressionof ...
 math  if 4th term of an arithmetic progression is 3 times the 1st term nd 7th ...
 math  the fourth term of an arithmetic progression is equal to 3 times the ...
 Math  The fifth term of an arithmetic progression is three times the second ...
 arithmetic  Each term of a progression is determined by adding 0.5 to the ...
 arithmetic  first term and larst term of a geometric progression is 42.if the ...
More Related Questions