89 - 12 could be it. Then u would get 77. So 77 is the number of maps that Marisa gave to the visitors.
hope it helps!
Answer:
3 different choices
Step-by-step explanation:
This problem is a combination problem: She has 3 friends, and we want to know how many groups of 2 friends there are. We can solve this using the combination of 3 choose 2:
C(3,2) = 3!(1! * 2!) = 3*2/2 = 3 possibilities
If we call her three friends A, B and C, the groups that can be formed are:
A and B
A and C
B and C
To find if a series is either geometric or arithmetic:
it must satisfy this property:
Arithmetic:
a(n+1) - a(n) = const
Geometric:
a(n+1)/a(n) = const
In your case:
r1 = 7 -4 = 3
r2 = 12 - 7 = 5
r1 != r2 (not arirthmetic)
Geometric check:
r1 = 7/4
r2 = 12/7
r1 != r2 (not Geometric)
so neither.
16 min bucket will drop at 3:36 and 14 min bucket will drop at 3:31
Id multiply the numbers and take the square root X<span>2=96×6=576</span><span>→X=<span>576<span>−−−</span>√</span>→X=24</span>Hence Geometric mean of the given numbers is 24.