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Fynjy0 [20]
2 years ago
5

The length of brook trout caught in a certain colorado stream has a mean of 14 inches and a standard deviation of 3 inches. what

lower limit should the state game commission set on length, if it is desired that 80 per cent of the catch may be kept by fisherpersons? 12.80 inches 11.48 inches 12.4l inches 12.00 inches

Mathematics
1 answer:
motikmotik2 years ago
7 0
The 20th percentile of your distribution is x = 11.48 inches, the 2nd selection.

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You buy a total of 25 burgers and tacos for $67.50. The burgers cost $3.50 each and the tacos cost $2.25 each. Find the number o
Ahat [919]

Answer: you bought 9 burgers and 16 tacos

Step-by-step explanation:

Let x represent the number of burgers that you bought.

Let y represent the number of tacos that you bought.

You buy a total of 25 burgers and tacos. It means that

x + y = 25

The burgers cost $3.50 each and the tacos cost $2.25 each. The total cost of the burgers and tacos that you bought is $67.50. It means that

3.5x + 2.25y = 67.5- - - - - - - - - - - - 1

Substituting x = 25 - y into 1, it becomes

3.5(25 - y) + 2.25y = 67.5

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- 3.5y + 2.25y = 67.5 - 87.5

- 1.25y = - 20

y = - 20/ - 1.25

y = 16

x = 25 - y = 25 - 16

x = 9

5 0
3 years ago
Prime factorization of:<br><br><br> 1,000
AlladinOne [14]

Answer:

2 × 2 × 2 × 5 × 5 × 5

4 0
3 years ago
If f(x) = 3x - 12, what is f(2)?<br>O A. -18<br>O B. -6<br>O c. 6<br>O D. 18​
zhannawk [14.2K]

Replace x with 2:

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f(2) = 3(2) - 12

= 6 - 12

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3 0
3 years ago
Read 2 more answers
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Answer:

V=216cm³

Step-by-step explanation:

V=216cm³

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