The Average of x, x+3, x+6, x+9 and x+12 is 10. find value of x
Answers
Answered by
1
Step-by-step explanation:
x+x+3+x+6+x+9+x+12
_______________ = 10
5
5x + 30 = 50
5x = 50-30
5x = 20
x= 20/5
x= 4
in the first line of is sum upon 5
Answered by
1
Answer:
4
Step-by-step explanation:
Average=Sum of observation/ No. of observation
10=x+x+3+x+6+ x+9+ x+12/5
50=5x+30
50-30=5x
20/5=x
x=4
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