Answer:
Step-by-step explanation:
<u>This is an AP with:</u>
- The first term a₁ = 12
- Common difference d = 3
- Number of terms n = 40
<u>Number of the seats:</u>
- Sₙ = 1/2*n(a₁ + aₙ) = 1/2n(2a₁ + (n - 1)d)
- S₄₀ = 1/2*40(12*2 + 39*3) = 2820 seats
<u>Formula of nth term:</u>
- aₙ = a₁ + (n - 1)d
- aₙ = 12 + (n - 1)*3 = 12 + 3n - 3 = 3n + 9
- aₙ = 3n + 9
Answer:
2
Step-by-step explanation:
Step-by-step explanation:
You have to take the decimals to whole number my multiplying it in tens, and then divided by the number of multiples you multiplied it by, also in tens.
After these, take. the square root of the resulting fraction
Answer:
3 games.
Explanation:
The information can be written as a function
t
=
2.50
+
2.25
g
If
t
=
9.25
then
9.25
=
2.50
+
2.25
g
.
By rearranging, you get
g
=
9.25
−
2.50
2.25
=
6.75
2.25
=
3
3 games can be played.
Step-by-step explanation: