Answer:
a)125970
b)95040
c)35640
Step-by-step explanation:
a) selecting 12 player from 20 players can be one in 
= 
= 
= 
b) since each position has an identity permutations can be used so
Number of ways = 
= 
= 
= 
c) coach permutes 4 players for position other than centers in 
ways and selects center in 3 ways
so, number of ways = 
=
=
Answer:
3/12 0.146 0.279 5/7
Step-by-step explanation:
3/12 = 0.25
5/7 = 0.71428571428
This is 1/2)2=1/4 hope this helps
Answer:
91%
Step-by-step explanation:
182/200 = .91
.91 = 91%
Hope that helps!
Solid paper costs 1.75 each
Printed paper costs 2.50 each
Given:
Ben = $43.50 (12 rolls solid paper and 9 rolls of
printed paper)
Joel = $51.50 (8 rolls solid paper and 15 rolls of
printed paper)
Let x = solid paper
Let y= printed paper
12x + 9y = 43.50
8x + 15y = 51.50
Find X:
8x + 15y = 51.50
8x = 51.50 - 15y
x= (51.50 - 15y)8
Substitute X:
12x + 9y = 43.50
12(51.50 - 15y)/8 + 9y = 43.50
(618 - 180y)/8 + 9y = 43.50
8 (618 - 180y)/8 + 8*9y = 43.50 * 8
618-180y + 72y =348
-108y = 348 - 618
-108y =-270
-108y/-108=-270/-108
Y= 2.50
x = (51.50 - 15y)/8
x = (51.50 - 15(2.5) /8
x= (51.50 - 37.50\8
X = 14/8
X = 1.75
To check: x = 1.75; y = 2.5
12x + 9y = 43.50
12(1.75) + 9(2.5) = 43.50
21 + 22.50 = 43.50
43.50 = 43.50
8x + 15y = 51.50
8(1.75) + 15(2.5) = 51.50
14 + 37.50 = 51.50
51.50 = 51.50
Hope that helps! Have a good day :)
