To determine the number of trout in a​ lake, a conservationist catches 94 ​trout, tags them and throws them back into the lake.​ Later, 30 trout are​ caught; 10 of them are tagged. How many trout would the conservationist expect to be in the​ lake?

Answers

Answer 1

Answer:

She would expect to find about 282 fish in the lake.

Step-by-step explanation:


Related Questions

what's the square root of -45?

a) -9√5

b) 9i√5

c) -3√5

d) 3i√5

Answers

Answer:

c

Step-by-step explanation:

Which order is correct? 0.8. 1 2 3' 3 1. 0 -0.8, 2 1 1. 1 3 3 1 o 1 3. -0.8, 2 3 1 1 IN 1 -0.8 1​

Answers

I don’t know because I think you copied the question wrong

(A) just trust

ITs too good

Complete the function table.
y= 3x + 5

Answers

Hope this helps
-16=y=3•-7+5
5=y=3•0+5
20=y=3•5+5
-4=y=3•-3+5
83=y=3•83+5

In a game a spinnerwill land on red 45% of the time, yellow 15% of the time, and blue 40% of the time. If the spinner is spun three times, find the following probabilities.

Answers

Answer:

Step-by-step explanation:

if im correct it should be 100% but if its not then im sorry

How mathematics involved in merchandising??

Answers

Merchandising math is a multifaceted topic that involves many levels of the retail process, including assortment planning, vendor analysis, mark-up and pricing, and terms of sale.

I hope this helps :)

Elisa withdrew $20 at a time from her bank account and withdrew a total of $140. Francis withdrew $45 at a time from his bank account and withdrew a total of $270. Who made the greater number of withdrawals? Justify your answer.

Answers

Answer:

Elisa made the greater number of withdrawals.

Step-by-step explanation:

Given that:

Elisa withdrew $20 at a time and a total amount of $140

Number of withdrawals by Elisa = [tex]\frac{Total\ amount\ withdrawn}{Amount\ withdrawn\ each\ time}[/tex]

Number of withdrawals by Elisa = [tex]\frac{140}{20}=7[/tex]

Francis withdrew $45 at a time and a total amount of $270

Number of withdrawals by Francis = [tex]\frac{270}{45}[/tex]

Number of withdrawals by Francis = 6

On comparing;

7 > 6

Hence,

Elisa made the greater number of withdrawals.

What is the value of x, y, z? Please answer need help soon

Answers

Answer:

x = 55

y = 55

z = 70

Step-by-step explanation:

x + 125 is a straight line, 180⁰ x+125=180 x=55⁰

since this is an isosceles triangle, x = z

and the sum of all angles in any triangle is 180⁰

55+55+y=180⁰

y = 70⁰

Answer:

x=55º, y=70º, z=55º

Step-by-step explanation:

We have that xº = 180º - 125º = 55º

As it is an isosceles triangle, we have xº = zº = 55º

Therefore, yº = 180º - (xº + zº) = 180º - (55º + 55º) = 180º - 110º = 70º

The phone company NextFell has a monthly cellular plan where a customer pays a flat monthly fee and then a certain amount of money per minute used on the phone. If a customer uses 470 minutes, the monthly cost will be $200.5. If the customer uses 590 minutes, the monthly cost will be $242.5.

A) Find an equation in the form
y=mx+b
,
where
x
is the number of monthly minutes used and
y
is the total monthly of the NextFell plan.

Answers

The equation in the form y = mx + b is y = 0.35x + 36.

How to represent a linear equation?

The equation formed from the expression is a linear equation and should be expressed in the slope intercept form.

y = mx + b

where

m = slopeb = y-intercept

Therefore,

y = mx + b

where

x = the number of monthly minutes usedy = the total monthly of the Next fell plan

using the coordinates, let's find m

(470, 200.5)(590, 242.5)

Hence,

m = 242.5 - 200.5 / 590 - 470

m = 42 / 120

m = 0.35

Therefore,

y = 0.35x + b

200.5 = 0.35(470) + b

200.5  - 164.5 = b

b = 36

Finally, the equation in the form y = mx + b is y = 0.35x + 36.

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An election for favorite lunch snack is between Apples, Beets, and Carrots. Students voted for their top three from best to least. The results are: ABC : 41 BAC : 26 CAB : 42 How many votes will A have in total after B is eliminated due to the Hare method

Answers

Answer: after eliminating B due to Hare Method, A will have a total of 67 VOTES

Step-by-step explanation:

Given that;

The results are

ABC : 41

BAC : 26

CAB : 42

NOW

A>B>C = 41 ⇒ A has 41 votes

B>A>C = 26 ⇒ B has 26 votes

C>A>B = 42 ⇒ C has 42 votes

According to Hare method, least votes gainers will be eliminated and once eliminated, his/her/its votes will be transferred to the next choice of person/thing.

based on the question; B will be eliminated

so we have;

A>B>C = 41 ⇒ A has 41 votes

B>A>C = 26 ⇒ B has 26 votes

we eliminate B, the votes are transferred to the next (A)

A>C = 26 ⇒ A has 26 votes

C>A>B = 42 ⇒ C has 42 votes

SO in total

A votes = 41 + 26 = 67 VOTES

Therefore after eliminating B due to Hare Method, A will have a total of 67 VOTES

After eliminating B due to Hare Method, A will have a total of 67 votes

We have given that,the results are

ABC : 41

BAC : 26

CAB : 42

A>B>C = 41 ⇒ A has 41 votes

B>A>C = 26 ⇒ B has 26 votes

C>A>B = 42 ⇒ C has 42 votes

What is the Hare method?

The Hare method is least votes gainers will be eliminated and once eliminated,The  votes will be transferred to the next choice of person/thing.

From the given question we have B will be eliminated

Therefore  we have

A>B>C = 41 ⇒ A has 41 votes

B>A>C = 26 ⇒ B has 26 votes

We eliminate B, the votes are transferred to the next (A)

A>C = 26 ⇒ A has 26 votes

C>A>B = 42 ⇒ C has 42 votes

Therefore the total votes are

A votes = 41 + 26 = 67 votes

Therefore after eliminating B due to Hare Method, A will have a total of 67 votes.

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If y is directly proportional to x and y =1200 when x=30, then what is the value of x when y=30?

Answers

Answer:

Y= 30

X= 0.75

Step-by-step explanation:

If the first Y was 1,200 and X was 30, then that means every time your divide Y by 40, you will get your X. It's the exact opposite if you want to find Y.

So you want to divide your Y, which is 30, by 40. Once who find your answer, you should have gotten 0.75 for X.

Why divide by 40? Good question. You divide by 40 because if you multiply your X example Y= 1,200, X= 30, you will get 30x40 which is 1,200. Do it the other way around divide 1,200 by 40, you get 30.

All in all your answer should be X= 0.75. If not tell me.

Thank You For Your Time

Sammy has a rectangular doormat on her porch. The mat is ​4/5 m long and 1/2 wide. What is the area of the doormat?

Answer:
​4/5 x 1/2
Multiply 4/5 x 1/2 by multiplying numerator times numerator and denominator times denominator.
4x1 4x1
____ Do the multiplications in the fraction ___
5x2 5x2

4/10 Reduce the fraction 4/10 to the lowest terms by extracting and canceling out 2.
2/5 0.4

Answers

The area of the given doormat is 0.4 meter square.

Here, we are given that Sammy has a rectangular doormat. The dimensions of the doormat are given as follows-

The length of the doormat is = 4/5 meters

and the breadth of the doormat is = 1/2 meters

The area of a rectangular figure is given by the formula as follows-

Area of a rectangle = length × breadth

Let the area of the rectangular doormat be A

Thus, in this case, we have-

A = 4/5 × 1/2

A = 4/ 10

A = 2/5

Now, converting the area obtained into a decimal number we get-

A = 0.4

Thus, the area of the given doormat is 0.4 meter square.

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Judy is selling small candles at the fair for $4 each and large candles for $6 each. She collected $144 selling a total of 28 candles. How many of each candle did she sell? Use x for the small candles and y for the large candles.

Answers


Let x = the number of small candles sold
Let y = the number of large candles sold

You are given two pieces of information:

(1) Number of candles sold: x + y = 28
(2) Revenue based on cost per candles sold: 4x + 6y = 144

Two equations, two unknowns - Solving by substitution (x = 28 - y)

4 * (28-y) + 6y = 144
112 - 4y + 6y = 144
112 + 2y = 144
2y = 32
y = 16

If y = 16, back substitute to find x = 12

Double check using revenue generated:

4x + 6y = 144
4(12) + 6(16) =? 144
48 + 96 = 144

Resolved: 12 small candles, 16 large candles.

Answer:

she sold about maybe 24 large candles or 33 small candles and 12 large i THINK

Step-by-step explanation:

sorry if i got it wrong

if i did can someone tell me

A diver begins at 140 feet below sea level. She descends at a steady rate of 7 feet per minute for 4.5 minutes. Then,
she ascends 112.2 feet. What is her current depth?
O-549.3 feet
-59.3 feet
59.3 feet
549.3 feet

Answers

Answer:

B

Step-by-step explanation:

-140 + (-7) × 4.5 = -171.5

-171.5 + 112.2

-59.3

Answer:

b

Step-by-step explanation:

Ms. Diaz feeds stray cats in the park every evening. She never knows how many cats will come to be fed. The food is always shared equally among the cats at the park. One evening, when 6 cups of cat food were shared, each cat received 2/3 of cup of cat food. How many cats were fed that evening?
A
4 cats
B
6 cats
C
9 cats
D
18 cats

Answers

Answer:

C. 9 cats

Step-by-step explanation:

I don't really know how to explain this

Answer:

C.) which is 9 cats

Step-by-step explanation:

3. Yeirilis spent $24.45 on a shirt. She paid with
$30. What is her change?

Answers

Answer:

30.00 - 24.45

her change is

$ 5.55

A used automobile dealership recently reduced the price of a used compact car by 12%. If the price of the car before discount was $34,500, find the new price.
A. 4,140
B. 36,640
C. 12,000
D. 30,360​

Answers

Answer:

D

Step-by-step explanation:

The new price of the used compact car is $30,360 if the used automobile dealership recently reduced the price of a used compact car by 12%.

What is the percentage?

It's the ratio of two integers stated as a fraction of a hundred parts. It is a metric for comparing two sets of data, and it is expressed as a percentage using the percent symbol.

It is given that:

A used automobile dealership recently reduced the price of a used compact car by 12%.

The price of the car before the discount = $34,500

The new price can be found using:

= 12% of $34,500

= (12/100)x34,500

= 0.12x34,500

The reduced amount = $4140

The new price = 34500 - 4140

The new price = $30,360

Thus, the new price of the used compact car is $30,360 if the used automobile dealership recently reduced the price of a used compact car by 12%.

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Please help work needs to be shown please help yall

Answers

Answer:

Sorry to say but I don't see any material.

Step-by-step explanation:

Where’s the question to this

what equation is equal to the x axis x = 4, x +y = o, x = y, y = 4

Answers

The x-axis is equivalent to x = 4, x + y = 0, x = y, and y = 4, and the value of the x-axis is y = 0.

What is equivalent?

Expressions that are equivalent do the same thing even when they have distinct appearances.. If two algebraic expressions are equivalent, then the two expressions have the same value when we plug in the same value(s) for the variable(s)

The Cartesian plane is what?A coordinate system is a plane with Cartesian coordinates. Each point is uniquely identified by a pair of numerical coordinates that are the signed distances from two fixed perpendicularly oriented lines to the point, measured in the same unit of length.Given that all of the y-values on the x-axis are zero, the x-axis' equation is y = 0.Similar to the x-axis, the y-axis also has all zero values, therefore the equation of the y-axis is x = 0.

((This presupposes that we're referring to the Cartesian plane, i.e. we are limiting ourselves to two dimensions.)

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given h (x) = 4x+2x^2-1

Answers

[tex]12a+18a^2-1[/tex]

Answer: 12a+6a^2 -1

Step-by-step explanation:

4(3a)+2(3a)^2-1

PLEASE HELP!!! Angle ABC is a straight angle.
The measure of angle DBC is 25°. The measure of angle ABD is x°. What is the value of x

Answers

Answer:

x = 155

Step-by-step explanation:

These angles are supplementary, so they add up to 180 degrees. So:

180-25 = x

155 = x

Thomas has graphed the function y = 7x – 10 on a coordinate plane.



Which of the following statements is true for the function Thomas graphed?

A.It has a slope of 10

B.it has a y-intercept of 7

C.It has a negative association

D.It assigns exactly one output to each input

Answers

Answer:

D

Step-by-step explanation:

A linear function has exactly one output to each input.

The given function has both negative associations and assigns exactly one output to each input. Options C and D both are correct.

Given that,
Thomas has graphed the function y = 7x – 10 on a coordinate plane.

What are functions?

Functions is the relationship between sets of values. e g y=f(x), for every value of x there is its exists in a set of y. x is the independent variable while Y is the dependent variable.

Here,

As the function is the equation of the straight line that implies it gives exactly one output to each input and has negative input or negative association to sub-function 7x.

Thus, the given function has both negative associations and assigns exactly one output to each input. Options C and D both are correct.

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If the martes obtained by a student in fiue subjects are 15, 14, 20, 17 d 25, then the probability of getting marks more than or equal to 20 is​

Answers

Answer:

P(marks ≥ 20) = 0.4

Step-by-step explanation:

Marks gotten by the 5 students are;

15, 14, 20, 17, 25

Marks more than or equal to 20 are 2 in number namely 20 and 25.

Thus, probability of getting marks more than or equal to 20 is;

P(marks ≥ 20) = 2/5

P(marks ≥ 20) = 0.4

7th-grade math I WILL GIVE BRAINLIEST !
Why will the graph of every proportional relationship include the point (0, 0)?

Answers

Answer:

It includes it because with out it there will be no center and it wouldn't be right. And with out it ever equation wont be proportional

Step-by-step explanation:

I really hope this helps Im just saying what I think is the answer it is my fault if you get the answer wrong <3

A triangular park has side lengths of 3x + 7, 20x and 2(x – 4).
Write a simplified expression to represent the perimeter of the park.

Answers

I explore this idea a bit. obviously x < 5 (because 5-x has to be positive.

2x-5 > 0 is a requirement, also, so x > 2.5 is required

HEEELLLLP GRADES ARE DUE In 4 HOURS



0.13(x + 2000 ) = 6,240
What is x?

Answers

Answer:

4240 is what x is eq to

Step-by-step explanation:

Which equation represents a proportional relationship that has a constant of proportionality equal to 0.7?

Answers

Answer:

The usual representation of a proportional relationship is ...

y = kx

You want the constant of proportionality (k) to be 7/10, so this is ...

y = (7/10)x

Dividing by x gives the equivalent relationship ...

y/x = 7/10

The table shows the cost of renting a sound system for a concert. Isabel rents a sound system at 1 p.m. and plans to return it before 4 p.m. Complete: Isabel will pay $ if she returns the sound system by 4 p.m. If she is 30 minutes late, she will pay an additiona

Answers

Answer:

56

Step-by-step explanation:

its 56 b

We can conclude that -

Isabel will pay $60 if she returns the sound system by 4 p.m.If she is 30 minutes late, then she will pay $72.

What is inequality?

An inequality compares two or more numbers or expressions with one another. For example -

2x + 4y > 7

2x + 5y < 6

Given is the table that shows the cost of renting a sound system for a concert. Isabel rents a sound system at 1 p.m. and plans to return it before 4 p.m.

The total number of hours for which she will rent the sound system is -

{h} = 4 - 1 = 3 hours

{h} = 3 hours

Now, for 3 hours, the given inequality is -

2 < x ≤ 3

We can write the cost as $60.

If she is 30 minutes late, then she will pay $72.

Therefore, we can conclude that -

Isabel will pay $60 if she returns the sound system by 4 p.m.If she is 30 minutes late, then she will pay $72.

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how to solve this. help me ASAP​

Answers

Step-by-step explanation:

if they are parallel they must be equal

Peter has 5 books with 100 pages and 7 books with 10 pages. How many pages are in peter’s books?

Answers

Answer:

Hi, the answer would be that Peter has 570 pages in total.

Step-by-step explanation:

Since he has 5 books with 100 pages, you multiply 5 by 100

5 × 100 = 500

Next, Peter has 7 books with 10 pages each, so you multiply 7 by 10.

7 × 10 = 70

Next, you can add them together to get the total.

500 + 70 = 570

570 is the total.

Hope this helps!

570

Step-by-step explanation:

Because 5 multipled by 100 is 500

Then 7 multipled by 10 is 70

So 500+70=570

15.
Find m of angle B

Answers

Answer:
X= 9
M angle B = 79

Explanation: Add all of the angles and you should get 37x + 27. Then you have to substitute the number of sides into the equation.

(N-2) 180 N = the number of sides in the
shape. If this case, it’s 4


Once you substitute 4 in, you should get 360 once you solve it. So you should have 37x + 27 = 360. Then you just solve it from there. 360 - 27 = 333

37x = 333
—— —— X= 9
37 37

Now you just put in 9 for x.

8 (9) + 7

72 + 7

M angle B = 79
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a Briefly explain how ONE specific historical event or development contributed to the changes in land claims depicted in the map,b Briefly explain ONE specific effect of the changes in land claims depicted in the map in the period from 1763 to 1775c. Briefly explain ANOTHER specific effect of the changes in land claims depicted in the map in the period from 1763 to 1775 which of the following is true regarding anterior putuitary glands? A.it releases hormones made by neuron in the hypothalamus B.it does not have cell that can produce hormones C.it is often referred as the "mster gland" of the endocrine system D.is is not truly part of the endocrine system because it is regulated by the hypothalamus PLEASE HELP I NEED HELP WITH NUMBER 6! Please help and show how you got to the answer! Select all the rates that are unit rates.1. [tex]\frac{1}{1/3}[/tex]2.[tex]\frac{2/3}{1}[/tex]3. [tex]\frac{2}{3}[/tex]4. [tex]\frac{3}{1}[/tex]5. [tex]\frac{1}{9}[/tex]Please help me im confused on what I do here.. Por que crees que los colonizadores no protegieron a los habitantes de esta tierra? PLEASE HELP FAST I ONLY HAVE ONE HOUR!!!!! lonic BondingWhy did it require two sodium atoms to Completethe Na 0 formula unit?Na has +2 charge and O has -1 charge.Na has +1 charge and O has -2 chargeNa has -2 charge and O has +1 charge. factors leading to hip subluxation and dislocation in femoral lengthening of unilateral congenital short femur What is the electron configuration for manganese please help!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!Which of the following describes a political action committee (PAC)? A. a committee of politicians responsible for making sure the election process is free from corruption B. an organization with a specific political motive engaged in raising and spending money to elect and defeat candidates C. a committee within the U.S. Congress responsible for enacting laws passed by the Congress D. a charitable organization that helps underprivileged political candidates finance their campaigns HELP ASAP DONT GUESS GRADE ON THE LINE Why are political protest more difficult and less frequent in nations without a constitution A.)government officials are allowed to arrest punish people just for attending a protest B.) most countries without constitution also lack of governments so there is a little to protest C.) citizens usually have very limited knowledge of their governments activities D.) the lack of constitution prevents citizens from leaving their homes A company has a discount on a forward contract for an asset. How is the discount recognized over the life of the contract? Ashton is paid $90 for 5 hours of work. He earned $18 in 1 hour. He earned $144 in 8 hours. At this rate, how much would Ashton be paid in 3 hours of work? Rebecca loves school and the sense of accomplishment she gets every time she gets a good grade. This sense of accomplishment is an example of a _________________ value. Question options:extrinsicculturalinstrumentalterminal Compare and contrast civil lawsuit and a criminal case. Describe the difference in the purpose and naming process of a criminal case and a civil case. What art style is this one? (The art attached is not mine.) Which country was NOT a major colonizer of North America? If r+9=42 does r+9-9=42+9 Please help What is the inverse of the function f(x) = 4x + 8?