Posted by lavena on Sunday, June 20, 2010 at 8:58pm.
find the common ratio in the sequence 8, 12, 18, 27,..... then write the next three terms of the sequence

pre algebra  Ms. Sue, Sunday, June 20, 2010 at 9:06pm
1/2 of 8 = 4
8 + 4 = 12
1/2 of 12 = 6
12 + 6 = 18
1/2 of 18 = 9
18 + 9 = 27
1/2 of 27 = 13.5
27 + 13.5 = 40.5
What do you think the next two numbers are?

pre algebra  lavena, Sunday, June 20, 2010 at 9:15pm
jeez i don't get it

pre algebra  Ms. Sue, Sunday, June 20, 2010 at 9:17pm
I showed you how this sequence was figured.
What part of what I posted don't you understand?

pre algebra  lavena, Sunday, June 20, 2010 at 9:34pm
1/2 of ...and how do u kno what number to put?

pre algebra  Ms. Sue, Sunday, June 20, 2010 at 9:39pm
I took the first numbers in the sequence  8, 12, 18, and 27.
For the next number,
Take 1/2 of 40.5
Add that number to 40.5 to get the next number in the sequence.

pre algebra  lavena, Sunday, June 20, 2010 at 9:48pm
i got 10.125

pre algebra  Ms. Sue, Sunday, June 20, 2010 at 9:56pm
Wrong. Doesn't half of 40 equal 20???
1/2 = 0.5
Use a calculator and multiply:
0.5 * 40.5

pre algebra  lavena, Sunday, June 20, 2010 at 10:03pm
20.25?

pre algebra  Ms. Sue, Sunday, June 20, 2010 at 10:11pm
Right. Half of 40.5 = 20.25
Add:
40.5 + 20.25 = ?
That will give you the sixth number of the sequence.

pre algebra  lavena, Sunday, June 20, 2010 at 10:19pm
thx but need ur help anymore,... im such a pain..i'll do them on my own

pre algebra  lavena, Sunday, June 20, 2010 at 10:25pm
thx but DON'T need ur help anymore,... im such a pain..i'll do them on my own
Answer This Question
Related Questions
 pre algebra  find the common ratio in the sequence 8, 12, 18, 27, ..... then ...
 pre algebra  solve whether the sequence is arithmetic or geometric if it is ...
 algebra  Find the common difference or ratio in each sequence. Write an ...
 peralgebra  whats the sequence,common difference or common ratio and the next ...
 Algebra  Need to get these problems checked 31. Determine whether the ...
 Find the common difference or ratio in each..?  Find the common difference or ...
 MATH  A new sequence is formed by adding together the corresponding terms of a ...
 Advanced algebra  1.write the first four terms of the sequence that begins with...
 Algebra  I am so lost on these problems. Write a geometric sequence that starts...
 Mathematics  . The three consecutive terms of an exponential sequence (G.P) are...
More Related Questions