We want to select 3 pairs of people from a group of 6.
We use the formula:
n! / (r! * (n -r)!)
where n = 6 and r = 2
combinations = 6! / (2! * 4!) =
combinations = 6 * 5 / 2
combinations = 15
Source:
1728.com/combinat.htm
Absolute value<span> describes the distance of a </span>number<span> on the </span>number<span> line from 0 without considering which direction from zero the </span>number<span> lies. The </span>absolute value of a number<span> is never negative. The </span>absolute value<span> of 5 is 5.</span>
BC= 39
Explanation:
4z+4z+3z+3+3z+3=174
8z+6z+6=174
14z+6=174
Subtract 6 from both sides
14z=168
Z=12
So then 3*12+3=39
And you can check by doing 39+39+48+48
And it equals 174
Answer:
35.50= 3x+5x+15.5
Step-by-step explanation:
