Answer:
20
Step-by-step explanation:
The average term in the series is the average of the first and last terms:
average term = (25 +101)/2 = 126/2 = 63
The sum of the series is the product of the average term and the number of terms:
Sn = n(average term)
1260 = 63n
1260/63 = n = 20
The number of terms in the series is 20.
Also can i get brainiest?
Answer: A. 3 7/13
Explain: I used a calculator
Answer:
So a ratio of 8:3 means for every 8 cars that is 3 trucks so we have the number of trucks which is 21 so what i did to find the answer was see how many times 3 went into 21 which is 7 times then you would take the 7 and times it by 8 and get 56 so there are 56 cars.
Step-by-step explanation:
Answer:
The 3 one is 2 and the forth one is 10
Step-by-step explanation:
i did the math