Answer:
![\sum_{n=1}^{25}(3n-2)=925]](https://tex.z-dn.net/?f=%5Csum_%7Bn%3D1%7D%5E%7B25%7D%283n-2%29%3D925%5D)
Step-by-step explanation:
The given series is 
The first term of this series is



The second term is



The common difference is

The sum of the first n-terms is given by;
![S_n=\frac{n}{2}[2a_1+d(n-1)]](https://tex.z-dn.net/?f=S_n%3D%5Cfrac%7Bn%7D%7B2%7D%5B2a_1%2Bd%28n-1%29%5D)
The sum of the first 25 terms of the series is
![S_{25}=\frac{25}{2}[2(1)+3(25-1)]](https://tex.z-dn.net/?f=S_%7B25%7D%3D%5Cfrac%7B25%7D%7B2%7D%5B2%281%29%2B3%2825-1%29%5D)
![S_{25}=\frac{25}{2}[2+3(24)]](https://tex.z-dn.net/?f=S_%7B25%7D%3D%5Cfrac%7B25%7D%7B2%7D%5B2%2B3%2824%29%5D)
![S_{25}=\frac{25}{2}(74)]](https://tex.z-dn.net/?f=S_%7B25%7D%3D%5Cfrac%7B25%7D%7B2%7D%2874%29%5D)
![S_{25}=925]](https://tex.z-dn.net/?f=S_%7B25%7D%3D925%5D)
Answer:
975 tickets
Step-by-step explanation:
1200 + 750 =1950/8 = 975
Answer:
12 different four digit numbers
Step-by-step explanation:
Answer:
Step-by-step explanation:
So, what is a quotient? Well, a quotient is like the sum, difference and product. When you add two numbers you get their sum, difference is for subtraction and product is for multiplication. So quotient is for division, or in other words the answer to a division problem.
Now, it's asking for the quotient of 91 and x, it isn't specifying which is being divided by which but it sound like it wants the first divided by the second. So that's 91 divided by x
Answer:

Step-by-step explanation:
Please see the attached picture for the full solution.