Brightstorm is like having a personal tutor for every subject

See what all the buzz is about

Check it out
Don't Stop Learning Now!

Gain access to 3,500 HD videos.

Convince me!

Watch 1 minute preview of this video


Get Immediate Access with 1 week FREE trial
Your video will begin after this quick intro to Brightstorm.

Arithmetic Sequences - Problem 8 428 views

Any real life situation where there is a constant difference between terms, called d, can be modeled using an arithmetic sequence, or number pattern. We can use such a number pattern to find out how many seats would be in the n'th row (in this case, 20th row). Use the explicit formula for an arithmetic sequence that is based on how many seats are in the first row and how many are added in each subsequent row.

Transcript Coming Soon!