Cinema auditorium is built for 3300 people. The first row is planned for 36 seats and each next gradually 4 more. How many rows of seats will have auditorium?
Leave us a comment of example and its solution (i.e. if it is still somewhat unclear...):
Showing 1 comment:
I like this question
To solve this example are needed these knowledge from mathematics:
Next similar examples:
- Cinema 4
In cinema are 1656 seats and in the last row are 105 seats , in each next row 3 seats less. How many are the total rows in cinema?
Seats in the sport hall are organized so that each subsequent row has five more seats. First has 10 seats. How many seats are: a) in the eighth row b) in the eighteenth row
- Sequence 3
Write the first 5 members of an arithmetic sequence: a4=-35, a11=-105.
- AP - simple
Determine the first nine elements of sequence if a10 = -1 and d = 4
- Sequence 2
Write the first 5 members of an arithmetic sequence a11=-14, d=-1
Write the first 6 members of these sequence: a1 = 5 a2 = 7 an+2 = an+1 +2 an
Write the first 7 members of an arithmetic sequence: a1=-3, d=6.
- Sum of members
What is the sum of the first two members of the aritmetic progression if d = -4.3 and a3 = 7.5?
Iron tubes in the warehouse are stored in layers so that each tube top layer fit into the gaps of the lower layer. How many layers are needed to deposit 100 tubes if top layer has 9 tubes? How many tubes are in bottom layer of tubes?
- Quadratic equation
Find the roots of the quadratic equation: 3x2-4x + (-4) = 0.
Between numbers 1 and 53 insert n members of the arithmetic sequence that its sum is 702.
Determine the quadratic equation absolute coefficient q, that the equation has a real double root and the root x calculate: ?
- Theorem prove
We want to prove the sentense: If the natural number n is divisible by six, then n is divisible by three. From what assumption we started?
- AS sequence
In an arithmetic sequence is given the difference d = -3 and a71 = 455. a) Determine the value of a62 b) Determine the sum of 71 members.
Equation ? has one root x1 = 8. Determine the coefficient b and the second root x2.
Determine the discriminant of the equation: ?
Your task is express the sum of the following arithmetic series for n = 14: S(n) = 11 + 13 + 15 + 17 + ... + 2n+9 + 2n+11