Five numbers has a mean of 12. When one (1) number is removed the mean is 11. What is the value of the number removed?

16

Step-by-step explanation:

The mean of a group of values is calculated as

mean =

Given 5 numbers with a mean of 12, then

= 12 ( multiply both sides by 5 )

sum = 60

let the number removed be x , then

= 11 ( multiply both sides by 4 )

60 - x = 44 ( subtract 60 from both sides )

- x = - 16 ( multiply both sides by - 1 )

x = 16

The number removed was 16

stew reads at the fastest rate of 265 words per minute.

step-by-step explanation:

it's a given that felicia reads at 260 word per minute and on connie's graph we can see that she reads 200 words per minute. since stew's table tells us that he read 795 in 3 minutes, we can divide 795 by 3 to find out how many words he reads per minute.

795/3 = 265

stew reads 265 words per minute - he reads at the fastest rate since felecia reads at 260 words per minute and connie reads at 200 words per minute.

stew (265) > felecia (260) > connie (200)