1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
docker41 [41]
3 years ago
7

There are 20 small tropical fish swimming in a 55-gallon aquarium. What is the population density?

Mathematics
1 answer:
umka21 [38]3 years ago
5 0

Answer:

The population density is 0.364 fish per gallon.

Step-by-step explanation:

The population density can be defined as the number of individuals (in this case, small tropical fish) per unit of area or volume. In this case, the volume of the aquarium (55 gallon).

The density can be calculated then as:

d=\dfrac{P}{V}=\dfrac{20\;\text{fish}}{55\;\text{gal}}\approx0.364\dfrac{\text{fish}}{\text{gal}}

The population density is 0.364 fish per gallon.

You might be interested in
A bag of stuffed animals contains 12 bears, 10 dogs, and 3 cats.
umka21 [38]
Well there is 13 possibilities so it would be 10/13
7 0
3 years ago
Do y’all know the answer to this math question?
valkas [14]

9514 1404 393

Answer:

  BC = 35

Step-by-step explanation:

The sum of the segments is the overall length.

  AB +BC = AC

  (2x +6) + (6x +5) = 51 . . . . substitute given values

  8x +11 = 51 . . . . . . . . . . . . . collect terms

  8x = 40 . . . . . . . subtract 11

  x = 5 . . . . . . . . . divide by 8

  BC = 6x+5 = 6(5) +5 . . . . . . . . use the value of x to find BC

  BC = 35

5 0
3 years ago
Mr. Nicolas is putting up strings of blue and white lights for the holidays. The ratio of blue to white lights is 5 to 6. If he
SVEN [57.7K]
Hello there.

Question: <span>Mr. Nicolas is putting up strings of blue and white lights for the holidays. The ratio of blue to white lights is 5 to 6. If he has 77 strings, how many strings are white lights?

Answer: 5:6
Add the numbers:
5 + 6 = 11
Divide this number by the total:
77/11 = 7
Multiply values by this number:
5 x 7 = 35
6 x 7 = 42
To check:
35 + 42 = 77.
Therefore your answer is 42.

</span>Hope This Helps You!
Good Luck Studying ^-^
8 0
3 years ago
(7 points) Cars arrive at a toll both according to a Poisson process with mean 80 cars per hour. If the attendant makes a two-mi
saveliy_v [14]

Answer:

The probability that at least 1 car arrives during the call is 0.9306

Step-by-step explanation:

Cars arriving according to Poisson process - 80 Cars per hour

If the attendant makes a 2 minute phone call, then effective λ = 80/60 * 2 = 2.66666667 = 2.67   X ≅ Poisson (λ = 2.67)

Now, we find the probability: P(X≥1)

P(X≥1) = 1 - p(x < 1)

P(X≥1) = 1 - p(x=0)

P(X≥1) = 1 - [ (e^-λ) * λ^0] / 0!

P(X≥1) = 1 - e^-2.67

P(X≥1) = 1 - 0.06945

P(X≥1) = 0.93055

P(X≥1) = 0.9306

Thus, the probability that at least 1 car arrives during the call is 0.9306.

5 0
3 years ago
Kedwin can watch movies at home in two ways. he can order unlimited online movies for $10 a month. he could also go to the local
dimulka [17.4K]

Answer:

The answer is option d-13 movies per month

Step-by-step explanation:

the reason is that is the first point on the graph that is above the price of the cost of the monthly unlimited movies

3 0
3 years ago
Read 2 more answers
Other questions:
  • Find two points for this equation<br> 2x+3y=12
    5·1 answer
  • 1. What is 350 in 2,254.58 in percentage?
    6·2 answers
  • Amy banana bread recipe calls for 3/4 cup of brown sugar she only has a 1/8 cup measure which equivalent fraction shows the amou
    15·1 answer
  • I need help please!!!??
    6·2 answers
  • Identify two similar triangles in the figure, and explain why they are similar. Then find AB.
    5·1 answer
  • Nigel paints 5/4 square yards in 1/3 hour. find the unit rate.
    9·2 answers
  • How much money will she have if she doesn't buy any<br> packs of baseball cards?
    12·1 answer
  • The center of Circle A is at the point (3, 1). If the point (3, 5) is on the circle, which of the following points is also on th
    13·1 answer
  • Marsha deposited 10,000​$ into a savings account 3 years ago. The simple interest rate is ​2%. How much money did she earn in​ i
    5·1 answer
  • Someone pls help: Find the slope of the line described by
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!