Wednesday

October 1, 2014

October 1, 2014

Posted by **Jennifer** on Sunday, December 8, 2013 at 5:44pm.

- math -
**Steve**, Monday, December 9, 2013 at 12:10amthe layers are triangular numbers:

1,3,6,10, ... n(n+1)/2

The pyramid is pyramidal numbers:

1=1

1+3=4

1+3+6=10

...

1+3+...+n(n+1)/2 = n(n+1)(n+2)/6

Now just plug in n=10

**Answer this Question**

**Related Questions**

maths - PLS HELP!!!! Some children were sharing oranges. If each child took 3 ...

math - Mr. Davis wants to buy some oranges. He visits a local grocery store and ...

Maths - Some children were sharing oranges. If each child took 3 oranges, there ...

organic chemistry - Why does the alkyl halide layer switch from the top layer to...

Org. Chem. - We did an experiment on the synthesis of n-butyl bromide using n-...

math - a box contain 60 oranges.3/5 of the oranges were equally shared among 4 ...

Math - The question is: A Woman is selling an (X) amount of Oranges The first ...

Math - Oranges are on sale at $0.99 per pound. Either bought 3.25 pounds of ...

Math - Part 1- Mr. Santiago bought 10 crates of oranges. There were 50 oranges ...

Math - Sophia buys an eqaul number of oranges and pears for a party. The oranges...