115k views
0 votes
The average of 6,10,x,20 and 30 is 18. what is the value of x​

2 Answers

5 votes

Answer:


x = 24

Explanation:


6 + 10 + x + 20 + 30 = 18

There are 5 numbers that we must add to average out to get 18 so let set this equation up


(6 + 10 + x + 20 + 30)/(5) = 18


6 + 10 + x + 20 + 30 = 90


x = 24

User SMX
by
7.8k points
4 votes

Answer:

24

Explanation:

18 times 5 is 90 so that means that the given numbers have to add up to 90 (including x)

so,

6+10+20+30=66

90-66=24

I hope this helps!

User Pouzzler
by
6.7k points