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Posted by on Thursday, March 10, 2011 at 5:12pm.

In a movie theater, theater A has 30 seats in the first row. Each next row has 4 more seats in it than in the previous row has.

1) How many seats are in the 4th row?Explain.

2) Is there a row with exactly 60 seats in it? Explain.

3) Theater B has 40 seats in the first row and each row has 4 more seats than the previous row. If both Theater A and Theater B has 25 rows, how many more seats does Theater B have in it than Theater A? Explain.

  • math - , Friday, March 11, 2011 at 11:25am

    1. 30 + 4(n-1) = 30 + 4(3) = ?

    Use this process with the other two problems.

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