20% of 55 is 11
Workingout: 20%/100% = 0.2
0.2 x 55 = 11
:)
9(-6x-2)-7(-10x-2)
Simplify, by distributing the 9 and the -7
-54x-18+70x+14
Combine like terms
16x-4 is the simplified expression
Hope this helped!
You must calculate how many ways can 2 people be selected from 65.
The formula is:
n! / r! * (n-r)! =
65! / 2! * 63! =
65*64*63! / 2 * 63! =
65*64 / 2 =
2,080 handshakes
Source:
http://www.1728.org/combinat.htm
Answer:
27y + 18z
Step-by-step explanation:
9(3y+2z)
Distribute the 9
9 * 3y + 9* 2z
27y + 18z
