You are here:
| Expert | Average Ratings | Expertise |
|---|---|---|
Scott A WilsonU.S.
Available
|
Story problems with any relation to math. |
If there is 1 at the top and 10 at the bottom, there are 2, 3, 4, 5, 6, 7, 8, and 9 at each row in between 1+2+3+4+5+6+7+8+9+10 = 55. Note that can also be found as 10*11/3 = 110/2 = 55. Each computer
Let the number be x. When it says, '4 less', that implies there is a -4 in the problem. When it says, 'twice the sum', that implies the sum is multiplied by 2. When it says, 'a number and eleven', that
If all 10,000 were put in the account at 6%, the interest would be $600. If some money were put in the account at 8%, it would earn 2% higher interest. Since we have $60 extra dollars, that is 2% of
It is known that the sum(1 to n) is n(n+1)/2. To show this works, try a few numbers: 1+2 = 3, 2(2+1)/2 = 3 1+2+3 = 6, 3(3+1)/2 = 6 1+2+3+4 = 10, 4(4+1)/2 = 10 According to what I used Excel to
Hello Juan, You did not ask me a question! I gather you want to know how many of each coin you have, yes? If you have x dimes, then you have x-12 nickels (12 fewer). Since each dime is worth $0
Answers by Expert:

©2012 About.com, a part of The New York Times Company. All rights reserved.