Choosing 3 cards from a deck of 52 cards:
In short, how many combinations there are in choosing 3 cards among 52 ?
⁵²C₃ = (52!) / (3!)(49!) → 22,100 combinations
Answer:
Number of Model A press = 9 and Number of Model B press = 5
Step-by-step explanation:
Number of books Model A can print per day = 70
Number of books Model B can print per day = 55
Let x be the number of Model A press and y be that of Model B press.
Total number of printing presses = 14
x + y = 14 ----------------1
Total number of books printed per day = 905
70x + 55y = 905-------2
Putting y = 14 - x in equation 2, we get:
70x + 55(14 - x) = 905
15x = 135
x = 9
y = 14 - 9 = 5
Hence number of Model A press is 9 and that of Model B press is 5.
Answer:
A
Step-by-step explanation:
Answer:
net loss of 144 yards
Step-by-step explanation:
+37-88-105+12= -144
P(green) = 1/4 p(yellow) = 2/4 p(red) = 1/4
the sum of probabilities is 1
p(not red) = 2/4, 1 - probability of getting red
the sum is 1
