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The average of the top 5 fish at a fishing tournament was 13.2 lbs. Four of the fish weights were: 12.6 lbs, 11.2 lbs, 10.9 lbs and 10.1 lbs. Find the weight of the fifth fish. ​

1 Answer

4 votes

Answer:

The weight of the fifth fish was 21.2 lb

Explanation:

we know that

The average is the ratio of the sum of the weights by the number of fish

Let

x -----> the weight of the fifth fish

we have


13.2=(12.6+11.2+10.9+10.1+x)/(5)

Solve for x


13.2=(44.8+x)/(5)


13.2(5)=44.8+x


66=44.8+x


x=66-44.8


x=21.2\ lb

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