Question

Question #c67a2

Answer 1

The value of `K` is `2`. See explanation.

Explanation:

From the given mean we can write an equation:

`(5xx3+8xx2+6xx4+K)/10=5.7`

`(15+16+24+K)/10=5.7`

`(55+K)/10=5.7`

`55+K=57`

`K=2`