Answer:
D. 160
Step-by-step explanation:
The sum of the sequence 1, 2, 3, 4, ... , n is n(n + 1)/2.
Here, you have the sum of 4(1, 2, 3, 4, ... , n), so the sum is 4[n(n + 1)/2]
In this case, the first term is 0, so the last term is the 8th term of the sequence above, so n = 8
4[n(n + 1)/2)] =
= 4[8(9)/2]
= 4[72/2]
= 4(36)
= 144
The closest answer is D. 160
The sequence is double the number then add 3. After 26 you add 3 for 29, then 29 should be doubled for 58.
48 does not belong.
Answer: 89/13 km
Step-by-step explanation:
3 4/13 + 2 5/13 + 1 2/13
= 43/13 + 31/13 + 15/13
= 89/13 km
Alright! In order to solve this problem you need to know your keywords:
Sum = To add
Difference = Subtract
Product = To multiply
So! When it asks for the sum of 24 and 7 you add them:
24 + 7 = 31
The difference of 18 and 6:
18 - 6 = 12
The find the product of these two you simply multiply:
12 x 31 = 372!
