The probability that a face card can be drawn from a standard deck of cards is 12/52 which can be simplified into 3/13.
The expected value is the product of the probability and the value.
Expected value = (3/13)($1) = $0.23
The difference between the amount spent and the expected value is equal to $0.27.
You can use the fact that equivalent equations are such that one equation can be obtained by performing some operations(which doesn't break equality) on the other equation and vice versa.
The equivalent equation to is
<h3>What are equivalent equations?</h3>
Equivalent equations are such that one equation can be obtained by performing some operations(which doesn't break equality) on the other equation and vice versa.
<h3>How to get the equivalent equation of the given equation?</h3>
The given equation is
Subtracting 4 from both sides, we get
Thus, one equivalent equation to the given equation is
The equivalent equation to is
Learn more cases of equivalent equations here:
brainly.com/question/14332869
The answer is the last one -27/(-3)-9 .
Answer:
Spiders=8
Ants=12
Step-by-step explanation:
Spider(s)=8 legs
Ants(a)=6 legs
Total legs=136
Total heads=20
8s+6a=136 (1)
s+a=20 (2)
From (2)
s=20-a
Substitute 20-a into (1)
8s+6a=136
8(20-a)+6a=136
160-8a+6a=136
160-2a=136
-2a=136-160
-2a=-24
a= -24/-2
a=12
Substitute a=12 into (2)
s+a=20
s+12=20
s=20-12
s=8