kevin has these four number cards: 3 5 7 and 9. the mean is 6 he takes another card. 3 5 7 9 ‘?’. the mean of the 5 cards is still six. what

Question

kevin has these four number cards: 3 5 7 and 9. the mean is 6 he takes another card. 3 5 7 9 ‘?’. the mean of the 5 cards is still six. what number is on the new card?

in progress 0
Evelyn 1 week 2021-09-14T00:29:09+00:00 1 Answer 0

Answers ( )

  1. Answer:

    The new number would have to be 6.

    Step-by-step explanation:

    In order to find the mean you add all numbers and divide by how many numbers you added together. In this case you would add 3, 5, 7, and 9 and divide by 4 to get 6. If the median of the cards is still six you could multiply 6 and 5 because you have 5 numbers. Then subtract 9, 7, 5, and 3 which will give you six.

Leave an answer

45:7+7-4:2-5:5*4+35:2 =? ( )