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sergij07 [2.7K]
2 years ago
11

PLEASE HELP ASAP!!!!!!!!! Billy scored a 97 on his final exam in history. If Billy's z-score was 2.6 and the standard deviation

was 5, what was the mean score on the exam?
Mathematics
1 answer:
Tomtit [17]2 years ago
3 0
The mean of the score for your answer is 4.4
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Jay had 6 times as much money as Kay. Then Jay gave Kay $33. Jay now has twice as much money as Kay. How much did they each star
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Answer:

Jay started with $148.5 and Kay with $24.75.

Step-by-step explanation:

With the information provided you know that Jay had 6 times as much money as Kay wich can be expressed as:

J=6K, where

J is the money Jay had

K is the money Kay had

Also, you know that  Jay gave Kay $33 and Jay now has twice as much money as Kay, which would be:

J-33=2(K+33)

Now, you can replace J=6K in this equation and solve for K:

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K=24.75

Then, you can replace the value of K in J=6K:

J=6*24.75

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According to this, the answer is that Jay started with $148.5 and Kay with $24.75.

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