By 4 becuase this will change the -4y to -16y , then adding the 2 equations will eliminate y.
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The expected value of the game is the mean value of the game
The expected value of the game is $1
<h3>How to determine the expected value?</h3>
There are 13 spades in a deck of card of 52
So, the probability of selecting a spade is:
P(Spade) = 13/52
Simplify
P(Spade) = 1/4
Winning = $7
The probability of not selecting a spade is:
P(Not spade) = 1 - 1/4
Simplify
P(Not spade) = 3/4
Lose = $1
The expected value of the game is:

This gives

Simplify

Evaluate

Hence, the expected value of the game is $1
Read more about expected values at:
brainly.com/question/15858152
Answer:
n=28 7 times 16=112divided by 4 =28
Step-by-step explanation:
Answer:
102 boxes.
Step-by-step explanation:
102x12=1224
The question says how many *full* boxes so even though the number is not exactly 1228, the correct answer is 102 boxes. Hope this helps!
Answer:
I don't see a graph but the picture is A i believe
Step-by-step explanation:
Hope that helped you :)