Arithmetic Series — Quiz Answers

An arithmetic series contains 20 numbers. The first number is 102 The last number is 159 Which expression represents the sum of the series?

What is the value of the arithmetic series? cap s sub 19 is equal to the sum from k is equal to 1 to 19 of open paren 4 minus 3 close paren

Which of the following represents the value of the series? cap s sub 28 is equal to the sum from k is equal to 1 to 28 of open paren 9 minus 4 close paren

Mae saves money for a special event. She saves $⁢5 on the first day and decides to increase her savings by $⁢2 every subsequent week for 20 weeks. How much will Mae have saved by the end of the 20 th week? Enter your answer in the box.

Which of the following represents the sum of the series? cap s sub n is equal to the sum from k is equal to 1 to 7 of open bracket 1 plus open paren k minus 1 close paren close bracket

Which expression represents the value of the series? 3 plus 7 plus 11 plus 15 plus dot dot dot plus 1 comma 671

The sum of an 84 -number series is negative 7 comma 980 What is the sum of the first and last numbers?

Which of the following represents the sum of the series? 4 plus 7 plus 10 plus 13 plus 16 plus 19 plus 22 plus 25 plus 28 plus 31 plus 34 plus 37 plus 40

What is the sum of the numbers in the series? 15 plus 11 plus 7 plus dot dot dot plus negative 129

Which of the following represents the sum of the series? 4 plus 7 plus 10 plus 13 plus 16 plus 19 plus 22 plus 25 plus 28 plus 31 plus 34 plus 37 plus 40

Each year, the number of students taught by Mr. Wright increases by 2 The first year, he taught 18 students. The total number of students taught after 25 years can be represented using the expression the sum from n is equal to 1 to 25 of open bracket 18 plus 2 close bracket How many students has Mr. Wright taught in 25 years?

In January, Desmond begins saving 25 dollars per month for a used car. Each month, he is able to save 5 dollars more than the previous month. After how many months will Desmond first have enough money to purchase a 3 dollars comma 000 used car?

What is the sum of the arithmetic series 11+18+25+⋯+165 ? Enter your answer in the box.

Sasha sets a goal to read 5 minutes longer than each previous day for 30 days. On the first day, Sasha reads for 20 minutes. The expression the sum from n is equal to 1 to 30 of open bracket 20 plus 5 close bracket represents the total number of minutes Sasha reads during the 30 days. How many total minutes does she read?

The manager of a store is stacking boxes for a display. There are 18 boxes on the bottom row. Each successive row has one less box than the previous row. The expression the sum from n is equal to 1 to 15 of open bracket 18 minus open paren n minus 1 close paren close bracket represents the total number of boxes in the display for the first 15 rows. How many boxes are in the display?

For a fund-raiser, Anthony earns 5 dollars for the first mile he runs, an additional 7 dollars for the second mile, an additional 9 dollars for the third mile, and so on. The expression the sum from n is equal to 1 to 10 of open bracket 5 plus 2 close bracket represents the total amount of money Anthony earns if he runs 10 miles. How much does Anthony earn if he runs 10 miles?

Dreya is saving money to purchase a 900 dollars computer, and she saves 10 dollars the first week. Each week after that, she saves 3 dollars more than the previous week, except in the last week, when she reaches 900 dollars To have a final sum of exactly 900 dollars , how much money does Dreya need to save in her final week of saving?