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math (plz help)

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

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

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

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 seats does Theater B have in it than Theater A?

ANSWERS MUST SHOW ALL WORK IN ORDER TO GET CREDIT. THANKS.

  • math (plz help) -

    Please check the first two Related Questions below.

  • math (plz help) -

    1. 46 seats...... 30+4+4+4+4
    2. No the 8th row has 62 seats and the 7th row has 58
    (30+4+4+4+4+4+4+4+4)
    3.THeater B has 145 seats....
    (40+25 4's)
    hope that helped

  • math (plz help) -

    1. 46 because a1=30 a2=34 a3=38 a4=42
    2.No the 8th row is is 58 and the 9th row is 62.
    3. 40+(25x4) = 140

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