Answered

Looking for answers? Westonci.ca is your go-to Q&A platform, offering quick, trustworthy responses from a community of experts. Ask your questions and receive detailed answers from professionals with extensive experience in various fields. Join our Q&A platform to connect with experts dedicated to providing accurate answers to your questions in various fields.

the mean of eight numbers is 4.5.give that the seven of the numbers are 9,2,3,4,12,13,1.find the eighth number

Sagot :

rococo908

Answer:

-8

Step-by-step explanation:

Use the mean formula:

mean = sum of elements / number of elements

Let x represent the 8th number, and plug this and the other numbers into the formula:

(9 + 2 + 3 + 4 + 12 + 13 + 1 + x) / 8 = 4.5

Simplify and solve for x

(44 + x) / 8 = 4.5

44 + x = 36

x = -8

So, the 8th number is -8

Thank you for visiting our platform. We hope you found the answers you were looking for. Come back anytime you need more information. We hope our answers were useful. Return anytime for more information and answers to any other questions you have. Get the answers you need at Westonci.ca. Stay informed with our latest expert advice.