Wednesday

November 26, 2014

November 26, 2014

Posted by **joanna** on Monday, February 23, 2009 at 7:05pm.

the answer is 9240, but i dont understand how to get that, help please??!

- math - gr 12 -
**Reiny**, Monday, February 23, 2009 at 8:07pmBreak it up into 3 cases

1. Joe at the door, then 10 others at the door, C(10,4) on the floor, C(6,6) as floaters

= 10x210x1 = 2100

2. Joe on the floor, leaving C(10,3) for the remainder on floor, C(8,2) for the door and C(6,6) as floaters

= 120x28x1 = 3360

3. Joe as floater leaving C(10,5) for the remaining floaters, C(6,4) for the floor, and C(2,2) for the door

= 252x15x1 = 3780

total = 2100+3360+3780 = 9240

- math - gr 12 -
**joanna**, Monday, February 23, 2009 at 8:38pmthanks!!!

- math - gr 12 -
**Geetha**, Monday, March 1, 2010 at 7:58pmTHANK YOU!

**Answer this Question**

**Related Questions**

English - 1. The volunteers there deliver food to old people. (What is the part ...

math - Ned is one of 6 library volunteers. He is also one of 8 playground ...

English - What kind of work is done by volunteers? 1. To help the handicapped to...

Psychology - What is the independent variable in this scenario: A research ...

math - the minimum size dance floor that the prom committee is considering 30 by...

math - the minimum size dance floor that the prom committee is considering is 30...

Liberal Arts - Part 1: You finally made it…graduation day has arrived! Your ...

Algerbra - the minimum size of dance floor that the prom committee is ...

Physics - Given: A flat dance floor of dimensions lx = 24 m by ly =23m and has a...

Physics - Given: A flat dance floor of dimensions lx = 24 m by ly =23m and has a...