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makkiz [27]
2 years ago
15

The average of 8 people in a golf club is 44. A ninth person joins the club and the new average of the golf club is 47. What is

the age, in years, of the ninth person?
Mathematics
1 answer:
PSYCHO15rus [73]2 years ago
5 0

Answer:

41 year old

Step-by-step explanation:

Suppose x is the total age before the ninth person joins. x/8=44 then the new persons age is a then x+a/9=47 so you subsitute x=352 then (352+a)/9=47 then 352+a=393 so we find a=41

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