Sandman55
contestada

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. ​

Respuesta :

calculista

Answer:

The weight of the fifth fish was 21.2 lb

Step-by-step 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

[tex]13.2=\frac{12.6+11.2+10.9+10.1+x}{5}[/tex]

Solve for x

[tex]13.2=\frac{44.8+x}{5}[/tex]

[tex]13.2(5)=44.8+x[/tex]

[tex]66=44.8+x[/tex]

[tex]x=66-44.8[/tex]

[tex]x=21.2\ lb[/tex]

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