The average of 5 numbers is 20. the average is 18 when one of the numbers is changed to 4. what is the original value of the changed number?
the average of 5 numbers is 30. the average is 18 when one of the numbers is changed to 4. what is the original value of the changed number?
answer both questions. if the answer to one of them is a decimal, state the decimal.
i seriously need with these questions. don't answer them foolishly.
(edit: i will reward 12-ish points and a brainliest answer for an actual answer. if it's wrong, i'm going to report you. if it's a foolish answer, you're going to be reported.