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lawyer [7]
3 years ago
13

The average score on an aptitude test is 80 with a standard deviation of 10. one person scored a 95. what is that person's z-sco

re?
Mathematics
1 answer:
Serga [27]3 years ago
6 0

Z = (95-80)/10

Z=15/10

Z=1.5

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postnew [5]

Answer: She has 40 nickels and 40 quarters .

Step-by-step explanation:

Let be "n" the number of nickels Theresa has and "q" the number of quarters Theresa has.

You know that she has a total of $12 in nickels and quarters. In cents, this is:

\$12*100=1,200\ cents

Then, based on this you can write the following expression:

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