SOLUTION: How many terms are there between 100 and 200 of an arithmetic sequence 7n+5 ?

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Question 1073367: How many terms are there between 100 and 200 of an arithmetic
sequence 7n+5 ?

Answer by Edwin McCravy(20056) About Me  (Show Source):
You can put this solution on YOUR website!
Instead of doing it for you, I'm changing all the numbers so
you can do yours exactly the same way I did this one step by step.
I'm changing it to this problem:

How many terms are there between 329 and 843 of an arithmetic
sequence 9n+7 ?
We know that the terms are between 329 and 843, so we write:

329%3C=9n%2B7%3C=843

Subtract 7 from all three sides

322%3C9n%3C=836

Divide all three sides through by 9

%2235.77...%22%3C=n%3C=%2292.88...%22

Since n is an integer,

36%3C=n%3C=92

There are 92 integers 1 through 92.

We can't use the first 35 integers 1 through 35,

So there are 92-35 or 57 terms between 329 and 843 of 
an arithmetic sequence 9n+7

Now you do yours exactly the same way step by step.

Edwin