Here we have an arithmetic sequence:
a 1 = 20, d = 2, n = 35
S n = n/2 * ( a 1 + a n )
a 35 = a 1 + 34 d = 20 + 34 * 2 = 20 + 68 = 88
S 35 = 35/2 * ( 20 + 88 ) = 35 / 2 * 108 = 1,890
Answer: In total, the theater seats 1,890 people
Answer:
150+25x = 600
Step-by-step explanation:
Hope this helped!
Answer:
1,2, and 3
Step-by-step explanation:
If you add together 1, 2, and 3, you will get 6. However, if you multiply them together, you will also get 6. Hope this helps!
In 3,492, the 4 is in the hundreds place. In 704, the 4 is in the ones place. The 4 in 3,492 is 100 times the 4 in 704. Hope I helped! XD