A biologist studying the relationship between tilapia and catfish in a pond finds that the ratio of tilapia to catfish is 6:20. If the pond has 30 catfish, how many tilapia are in the pond?

Answers

Answer 1

Answer: 9 tilapia

Step-by-step explanation:

The ratio of 6:20 for tilapia to catfish means that for every six tilapia, there are 20 catfish in the pond.

If there are 30 catfish, use direct proportion to find out the number of tilapia:

6     :      20

x     :       30

Cross multiply:

20x = 180

x = 180 / 20

x = 9 tilapia


Related Questions

Which is the simplified form of n^-6p^3

Answers

The third choice

If you have a negative exponent n^-6 it becomes 1/n^6
And 1 times p^3 is equal to p^3

So the correct answer is p^3/n^6

What is 49+14? (Equivalent Expressions)

Answers

Answer:

63

BRAINLIST

BRAINLIST

After adding, the value of expression is,

⇒ 49 + 14 = 63

We have to given that,

An expression is,

⇒ 49 + 14

Since, The process of combining two or more numbers is called the Addition. The 4 main properties of addition are commutative, associative, distributive, and additive identity.

Now, We can simplify as,

⇒ 49 + 14

Adding,

⇒ 63

Thus, After adding, the value of expression is,

⇒ 49 + 14 = 63

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e/3=7. please can some one help

Answers

Answer:

e=21

Step-by-step explanation:

Answer:

E = 7 * 3 = 21

21 / 3 = 7

Step-by-step explanation:

what is 3(4j + 6 + 5j) as a verbal expression. please please please help

Answers

Answer:

[tex]3(4j + 6 + 5j)[/tex] as a verbal expression would be three multiplied by the sum of four j, six, and five j.

Step-by-step explanation:

Since three is multiplying the values in the parenthesis, which is a sum of 4j, 6, and 5j, that means the verbal expression of this expression would be three multiplied by the sum of four j, six, and five j.

Evaluate the expression for b = -3. ) 1.8b=​

Answers

Answer:

-5.4

Step-by-step explanation:

because -3 x 1.8= -5.4

Answer: -5.4

Step-by-step explanation: 1.8b means to multiply 1.8 by b and b=-3 therefore, 1.8(-3)= -5.4

Hope this helps ^_^

1.5 divede by 0.3 dived by .01

Answers

Answer:

500

Step-by-step explanation:

Answer:

1.5 divided by .3 divided by .01 is 500

A bag contains 10 marbles. Four of them are red, three blue, two white, and one yellow. A marble is drawn at random. What is the probability that it is yellow?​

Answers

Answer: It is one out of ten or 1/10 or 10%

10%. the first person was correct:)!!

Amy work 5 hours less than Samantha worked. together they worked 19 hours how many hours did they each work? Help and show work plssss

Answers

Answer:

Samantha worked 12 hours and Amy worked 7 hours.

Step-by-step explanation:

Samantha worked 12 hours, so Amy is 5 less, so Amy would be 7 hours. 12+7 = 19.

Sofia bought 3 items that cost a total of $21.99. What is the price of one item?

Answers

Answer: The price of one item is $7.33

Step-by-step explanation:

I*3=21.99

i=7.33

On Tuesday, there were 400 customers at a movie theater, and each customer paid $8 for a ticket. On Wednesday, the owner of the movie theater reduced the regular ticket price from $8 to $6 for tickets that were purchased before 6 p.m. If the daily ticket sales for the two days were the same, and 100 people paid $8 for a ticket on Wednesday, how many people paid $6 for a ticket on Wednesday?

Answers

Answer:

400

Step-by-step explanation:

6x + 800 = 3200

6x = 3200 - 800

6x = 2400

    = 2400 / 6

x   = 400

Hope this answer helps you :)

Have a great day

Mark brainliest

The number of people who paid $6 for a ticket on Wednesday are 300.

What is subtraction?

The act or process of subtracting is a mathematical operation in which the difference between two numbers or quantities is calculated.

According to the given question.

Number of tickets sales for Wednesday = 400

Also, on Wednesday number of people who paid $8 for tickets = 100

Therefor,

The number of people or customer who paid $6 for a ticket on Wednesday = Total number of people who purchased tickets - total number of people who purchased tickets for $8

[tex]= 400 - 100\\= 300[/tex]

Hence, the number of people who paid $6 for a ticket on Wednesday are 300.

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Can someone please explain Conditional probability to me

Answers

Answer:

conditional probability is probability based on logic and past events instead of your current data which you got from whichever experiment you did (that is experimental probability)

Step-by-step explanation:

75 inches to centimetres

Answers

Answer:

190.5 cm

Step-by-step explanation:

Conversion factor:

2.54 cm = 1 in

Therefore, multiply 75 in by 2.54 cm

190.5 centimeters :)

As part of her art project, Sarah is painting 2 square
pyramids. The first pyramid has a base with a length of 6
cm and lateral faces with heights of 8.5 cm. The second
pyramid has a base that is half the length of the first
pyramid, and each lateral face has a height of 8.5 cm. What
is the surface area of the second pyramid?

Answers

Answer:

25.5

Step-by-step explanation:

first pyramid: 6*8.5

second pyramid: 3 (half the length of the first) *8.5

3*8.5 = 25.5

Answer:

25.5

Step-by-step explanation:

There are multiple squares you need to find the area of each one by finding the area of each square then adding them together to get the surface area.

pt 2 . This is my last one I need helppp!:(

Answers

c = 10bPlease let me know if I am wrong.
c=10b because let's say b is 4 and you multiply that by 10 you get 40 and that is one of the plots for c

What is the equation of a parabola with (4, 6) as its focus and y = 2 as its directrix



Answers

Answer:

Step-by-step explanation:

hope this helps or answers your question.

Alana listed the lowest temperatures recorded in some states
State
Lowest temperature recorded (°F)

-80 Alaska
0 Florida
12 Hawaii
-34 New Jersey
-34 North Carolina

Alana wrote inequalities to compare the temperatures.
Choose all of the correct
inequalities that Alana wrote.

A 12 > 0
B. 0> -34
C. 12<-34
D. -80 < 12
E-34 <-80

Answers

The correct inequalities that alana wrote is

B) 0> -34

D) -80< 12

With working steps :)​

Answers

Answer:

Surface area =132cm

Step-by-step explanation:

Formula= 2A(b)+(a+b+c)h

This one is really long

There are 24 girls in a class. The ratio of girls to boys is 3:8.
How many boys are in the class?​

Answers

Answer:

64 boys.

Step-by-step explanation:

There are 3 girls for every 8 boys.

24/3 = 8

8 * 8 = 64

The number of boys will be [tex]64[/tex] .

What is ratio ?

Ratio is the comparison of two numbers i.e. how much a number contains other.

We have,

Number of girls [tex]=24[/tex]

Ratio of girls to boys [tex]=\ 3:8[/tex]

So,

According to the question,

Let number of girls [tex]=3x[/tex]

Number of boys [tex]=8x[/tex]

And,

We have number of girls so compare them,

i.e. [tex]3x=24[/tex]

⇒[tex]x= 8[/tex]

So, now putting value of [tex]x[/tex] in Number of boys,

i.e.

Number of boys [tex]=8x[/tex]

                           [tex]=8*8[/tex]

Number of boys [tex]=64[/tex]

Hence, we can say that the number of boys will be [tex]64[/tex] .

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PLS ANSWER IM MARKING BRAINLEST IF YOU CORRECT

Answers

C=80°. According to the Triangle Sum Theorem, the sum of all three angles in a triangle is 180°. Therefore, 35+65+C=180. 100+C=180. C=80°.

HELP ASAP FOR 100 POINTS

Answers

Answer:

C

Step-by-step explanation:

Answer:

d

Step-by-step explanation:

you are correct already

anjou has 28 apples.3\7 of apples that are rotten find the number of rotten apples

Answers

Answer:

3/7 × 28 = 12 apples are rotten

Hope it helps

Answer:

12

Step-by-step explanation:

3/7*28/1=12

Match each event to the likelihood of its occurrence. rolling a six-sided die and getting a 7 randomly selecting a girl from a team of 14 boys and 4 girls randomly selecting a short straw from a set of 12 short straws and 12 long straws picking a bird from a list of 20 bird species and 6 other animals likely arrowRight impossible arrowRight unlikely arrowRight neither likely nor unlikely arrowRight

Answers

A six sided die has numbers 1 through 6 so getting a 7 is impossible so the probability would be 0 (impossible)

14 + 4 = 18 total boys and girls

Picking a girl would be 1/18 this is low so ( unlikely)

12 short and 12 long straws = 24 total straws. Picking a short one would be 12/24 = 1/2 this is in the middle ( neither likely nor unlikely)

20 + 6 = 26 total animals

Picking a bird = 20/26 = 10/13, this is high ( likely)

Answer:

A six sided die has numbers 1 through 6 so getting a 7 is impossible so the probability would be 0 (impossible)

14 + 4 = 18 total boys and girls

Picking a girl would be 1/18 this is low so ( unlikely)

12 short and 12 long straws = 24 total straws. Picking a short one would be 12/24 = 1/2 this is in the middle ( neither likely nor unlikely)

Picking a bird = 20/26 = 10/13, this is likely

Step-by-step explanation:

help me with these QUESTIONS​

Answers

Answer:

1. no solution

2. x = -6, 6

3. 0

4.x = -3, 3

5. 0

6.x = -4, 4

Step-by-step explanation:

= I'm not sure if right though

Solve and Graph the Inequalities​

Answers

Answer:

1) 2 + 5k ≤ -18

5k ≤ -20

K ≤ -4

2) -7 > 3 + r/5

-10 > r/5

-50 > r

3) -6 + a/2 < -6

a/2 < 0

a < 0

4) -10 ≤ 5 - 3y

-15 ≤ -3y

5 ≤ y

5) 5 - 6z < 29

-6z < 24

z < -4

6) 5c + 2 ≥ -28

5c ≥ -30

c  ≥ -6

7) -4 + x/2 ≥ -10

x/2 ≥ -6

x ≥ -12

8) 4d + 5 ≤ -27

4d ≤ -32

d ≤ -8

9) -9 > -5 + y/6

-4 > y/6

-24 > y

10) -45 > 3 + 6g

-48 > 6g

-8 > g

For all of the graphs:

Start the point on the number that I got from the inequality.

A filled circle means:

Greater than or equal to or less than or equal depending on where the line goes.

A hallow circle means:

Greater than or less than also depending on where the line is pointed towards too.

In order to graph an inequality you have to find and simply first then graph it.

For example on number 1, K ≤ -4.

Let's graph!

As you can see I filled in the circle and started at the point, -4.

Once I did it I made it bold from -4 and there on to the left. Making -4 be greater than or equal to K.

I showed that -4 is greater than or equal to K by making the line bold behind -4, also by filling in the circle.

Easy brainliest, please help me..
-44 points in total with brainliest-
(only if you get it correct)

Answers

Answer:

Solution given:

arcCD=2×35=70°[inscribed angle is half to the central angle]

r=10in

area of segment :[tex] \frac{70}{360} π×r²[/tex]

:[tex] \frac{70}{360} π×10²[/tex]

=[tex] \frac{175}{9} π[/tex] in²

C.[tex] \frac{175}{9} π[/tex] in² is a right answer.

A skydiver falls 125 feet in 5 seconds. How far does the skydiver fall per second?

Answers

Answer:

25 feet in one second

Step-by-step explanation:

125 divided by 5 is 25

Answer:

25 feet per second

Step-by-step explanation:

4 1/6 pounds of rice is divided into 5 equal portions. What is the weight in pounds of each portion?

Answers

5/6 or 0.83 lbs is the anwser

Can you please help me with this question??

Answers

Answer:

the answer is B  9.42 in.

here is my question please anwser as soon as possible !!!!!!!

Answers

Answer:

is it asking which one is a y coordinate?

Answer:

Q'(5, -3), R'(4, -1), S'(0, -2), T'(0, -5)

Step-by-step explanation:

Reflecting across the y-axis causes the x coordinate of a point to change to its opposite. So in terms of x and y: (x, y) ⇒ (-x, y)

Q(-5, -3) ⇒ Q'(5, -3)

R(-4, -1) ⇒ R'(4, -1)

S(0, -2) ⇒ S'(0, -2)

T(0, -5) ⇒ T'(0, -5)

What is 3/3 plus 4 6/4?

Answers

Answer:

78/12 or 6 1/2

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