Leslie has 2.50
elena has 2.75
5.25-.25 (for the amount that they don’t have equal) =5
5/2 (split equal between two people) =2.50
2.50+.25 (the amount elena has more than leslie) =2.75
Answer: 63
Step-by-step explanation: 21+21+21
SA= 2LW + 2LH + 2WH
Substituting for the values, SA = 900 cm^2
Answer:
10626 different arrangements
Step-by-step explanation:
As we have a total of 23 students and we want to form groups of 3, where the order of the 3 students matters, we can solve this problem using a permutation of 23 choose 3.
The formula for a permutation of n choose p is:
P(n,p) = n! / (n-p)!
So, using n = 23 and p = 3, we have:
P(23,3) = 23! / (23-3)! = 23! / 20! = 23 * 22 * 21 = 10626
So we have a total of 10626 different arrangements of first, second and third place.
