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Kisachek [45]
3 years ago
6

Of the 25 fish that Karl caught

Mathematics
1 answer:
otez555 [7]3 years ago
7 0

Answer:

1,820 trout

Step-by-step explanation:

Set up a proportion where x is the number of trout in the lake:

\frac{7}{25} = \frac{x}{6,500}

Cross multiply and solve for x:

25x = 45,500

x = 1820

So, you could expect 1,820 trout to be in the lake.

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Substitute both expression into the initial expression:

\dfrac{x^2+6x-5}{x^2-25}=\dfrac{x(x+5)+(x-5)}{(x+5)(x-5)}=\dfrac{x(x+5)}{(x+5)(x-5)}+\dfrac{(x-5)}{(x+5)(x-5)}=\dfrac{x}{x-5}+\dfrac{1}{x+5}.



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