Thursday

November 27, 2014

November 27, 2014

Posted by **chelsea** on Monday, October 22, 2012 at 3:55am.

- MATHS -
**Reiny**, Monday, October 22, 2012 at 9:11amlooks like a geometric series

5 + 10 + 20 + 40 + ... for 20 terms

a = 5 , r = 2

Sum(2) = 5(2^20 - 1)/(2-1) = 5242875 c

**Answer this Question**

**Related Questions**

Calculus - Twins, Pierre and Francesca were each given 100 dollars on their 15th...

maths - For a certain year, a ski resort averaged d dollars per week in receipts...

Algebra - A bean sprout grows 3 inches in its first week, 2 inches in its second...

MATHS - Please show the quickest way to do this question? Amanda has 20 coins in...

math - Product in thousand kilogram of a certain company in first,second and ...

math - Jane uses a jar to save her money. She saves $10 from her weekly ...

Physics - Consider a radioactive sample with a half-life of one week. How much ...

math - Tyrone has $60 and his sister has $135. Both get an allowance of $5 each ...

math-please help - this is a two part question. Dylan owns a bakery where she ...

Physics - Which of Newtons laws would best explain what causes a basketball to ...