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Brrunno [24]
4 years ago
11

To determine the number of trout in a lake​, a conservationist catches 450 trout​, tags​ them, and releases them. Later 90 trout

are​ caught, and it is found that 45 of them are tagged. Assuming that the proportion of tagged trout in the second sample was the same as the proportion of tagged trout in the total​ population, estimate the number of trout in the lake.
Mathematics
2 answers:
Scorpion4ik [409]4 years ago
8 0

Answer:

595 Trout

Step-by-step explanation:

90 - 45 = 45

450 + 45 = 495

Svetlanka [38]4 years ago
6 0

Answer:

495

Step-by-step explanation:

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Goshia [24]

Answer:

Height of the streetlight ≈ 8 ft(nearest foot)

Step-by-step explanation:

The doc file displays the triangle formed from the illustration. x is the height of the street light. The distance from the gentle man to the street light is 10 ft. He  has a height of 5.6 ft  and the shadow formed on the ground is 24 ft long. The height of the street light can be calculated below.

The length of the tip of the shadow to the base of the street light is 34 ft. Similar triangle have equal ratio of their corresponding sides .

ab = 5.6 ft

The ratio of the base sides = 24/34

The ratio of the heights = 5.6/x

The two ratio are equal Therefore,

24/34 = 5.6/x

24x = 5.6 × 34

24x = 190.4

divide both side by 24

x = 190.4/24

x = 7.93333333333

x ≈ 8 ft

Height of the streetlight ≈ 8 ft(nearest foot)

Download docx
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barxatty [35]
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myrzilka [38]

Answer:

Step-by-step explanation:

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Answer:

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Step-by-step explanation:

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