22's answer is because they're alternate
<em>Answer:</em>
<em>$5 for 8 pens</em>
<em></em>
<em>Step-by-step explanation:</em>
<em>0.625 times 8= 5 dollars</em>
<em>0.625 times 50= 31.25</em>
<em>which is way cheaper</em>
Due to a negative value of P(X = x), it is found that the following is not a probability distribution.
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A sequence (x, P(X = x)) is a probability distribution if:
- The sum of all values of P(X = x) equals 1.
- There is no negative values of P(X = x).
In this problem, P(X = 2) is negative, thus, it is not a probability distribution.
A similar problem is given at brainly.com/question/24224213
Answer:
1. y=kx
2. y=60
Step-by-step explanation:
y is directly proportional to x
y=kx
Find Constant K, when y=30 & x=6
Make K the subject of the formula first
K=y/x
K=30/6
k=5
When k is 5, x is 12, find y
y=kx
y=5×12
y=60
