Combinations = n! / (n - r)! r!
In this case:
n = 4
r = 3
Combinations = 4! /(4-3)! 3! = 24/(1)(6) = 24/6 = 4
Answer:
4 arrangements
Answer
it is 91
Step-by-step explanation:
I think it’s how many weekdays he’s practiced soccer so it’d be 30x x being the number of days!
7.8+3.5(6.8)-1.5
7.8+23.8-1.5
31.6-1.5
30.1
Answer:
18 inches or 1 foot 6 inches/1 foot and a half
Step-by-step explanation:
one foot is 12 inches long so you take the number of feet given (7—we'll worry about the half later) and multiply by the number of inches that are in a foot (12)
7×12=84
then half a foot is 6 inches so 84+6=90 inches
then we take 90 and divide it by 5 (to get the length of one piece)
90/5=18 inches
you can keep it as 18 inches or convert it into feet which you subtract 12 from 18, and you have 6 inches left which is 1 foot and a half
