Answer:
Probability of picking an even and then even number = 
Step-by-step explanation:
Probability of picking a card with even number,
P(even 1) =
= 
= 
= 
Followed by picking a card which is even without putting the first card back.
So an even card is to be picked out of remaining 3 cards.
P(even 2) = 
= 
Now probability of both events = P(even 1) × P(even 2)
= 
= 
Therefore, probability of both the events will be
.
Answer:
34
Step-by-step explanation:
Substitute 8 where there is an x
f (8)= 4(8) +2
= 32 +2
=34
Answer:
Somebody answer hurry i also need help
Step-by-step explanation:
X = tuna, y = BLT
x + y = 30
6x + 9y = 240
3y = 60
y = 20
x = 10
20 BLTs for $2.50, 10 tuna for $1.50
Total voters=v=80
total no. of democrats=d=65
total no. of republicans=r=15
probability of democrats=p1=65/80=0.8125
probability of republicans=p2=15/80=0.1875
probability of a democrat or a republican=p1+p2=0.8125+0.1875=1 <span />