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• 02 given the set of numbers n = {7, 9, 10, 14, 8,...

# 02 given the set of numbers n = {7, 9, 10, 14, 8, 16, 13}. when a number x is added to the set, the new mean is 12. calculate the value of x.​

• Réponse publiée par: snow01

x=19

Step-by-step explanation: • Réponse publiée par: batopusong81

19

Step-by-step explanation:

( 7 + 9 + 10 + 14 + 8 + 16 + 13 + x)/8   =  12

77 + x   =   96

x   =   96 -77

=    19

• Réponse publiée par: sicienth

value of x is equal to 19

Step-by-step explanation:

since 12 is the new mean all you have to do is to get the n or population of the given numbers since the given population is 7 then plus 1 is equal to 8  then the new mean is 12 multiply th twogiven 12x8=96 then you must get the number total of 96 to have 12 as ur mean then adding given numbers is = to 77 . then subtract 96 and 77 then its difference is 19 so add 19 to 77 then it will have the result of 96 then divide by its population which is 8 then you will get the result of 12 which is your new mean.

• Réponse publiée par: kuanjunjunkuan
Mean=sum of nos. ÷ no of nos.

Therefore,
12=(77+x)÷8

cross multiply,
12(8)=77+x
96=77+x

Transpose,
x=96-77
x=19