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
Akimi4 [234]
3 years ago
5

Ronald works in an Ornithology (bird maintenance) department. Students asked him to find out the best estimate of the local bird

population. So he tied a belt around the legs of 40 birds. A few days later, he observed 520 birds, 34 of which had belts. To the nearest whole number, what is the best estimate for the bird population?
Mathematics
2 answers:
Andreyy893 years ago
8 0

Answer:

The best estimate for the bird population is 613 birds

Step-by-step explanation:

Let x be the total of number of estimated bird

From x, 40 birds are with belt

he observed 520 birds, 34 of which had belts.

Then taking reciprocal of both statements

x/40 = 520/34

34x = 520*40 = 20800

x = 20800/34

x = 613The total of number of estimated birds is 613 birds

The total of number of estimated birds is 613 birds

djyliett [7]3 years ago
6 0

Answer:

618 birds.

Step-by-step explanation:

Let the estimated number of birds=x

Out of x birds, he tied a belt around the legs of 40 birds.

When he observed 520 birds, 34 of which had belts.

Expressing each as a ratio

\frac{x}{40}=\frac{520}{34}

Cross Multiply

34x=520X40

x=520X40÷34=611.7≈618

There are an estimated 618 birds.

You might be interested in
A statistics professor plans classes so carefully that the lengths of her classes are uniformly distributed between 46.046.0 and
Gala2k [10]

Answer:

The probability of selecting a class that runs between 50.2550.25 and 51.2551.25 minutes is 0.10

Step-by-step explanation:

The Uniform Distribution, also known as Rectangular Distribution, is a type of Continuous Probability Distribution. It has a continuous random variable restricted to a finite interval and its probability function has a constant density during this interval.

The formula of probability if given by:

f(x)=

\left \{ {{\frac{1}{b-a}; \ a \leq x \leq b  } \atop {0}; \ x \ otherwise } \right.

In this exercise a= 46.0 and b= 56.0

The probability of selecting a class that runs between 50.2550.25 and 51.2551.25 minutes is:

\int\limits^{51.25}_{50.25} {\frac{1}{56-46} } \, dx = \int\limits^{51.25}_{50.25} {\frac{1}{10} } \, dx = \frac{1}{10} \times (51.25 - 50.25)=\frac{1}{10}=0.1

7 0
3 years ago
Simplify.<br> 4(w-2) - 6
Alex Ar [27]
Answer: 4w-14

Step By step explanation: 4(w-2)-6= 4w-8-6= 4w-14
4 0
3 years ago
Read 2 more answers
Please answer ASAP!
iren [92.7K]
Maybe, 150-100=50 on each triangular side. 50*height(80)=4000 divided by 2=2000. 2000 *'s 2, since we have to count the other side. Now, we have 100 left. so top of rectangle,(48 ft) times what's left of height. 48*(80-64=16) 16=768. Which covers the width of the big column, (48) and leftover height. Next, we find out the 2 left columns, one on each side of rectangle. Find area of rectangle, (what's left) 100. 100*80=800. 800- area of rectangle. Area of rectangle= 3072. Almost lastly, 4000 plus 800= 4800, then, 4800-3072=1728. I believe that the correct answer for the area of the lawn is 1,728 feet.
4 0
3 years ago
Read 2 more answers
A credit card statement showed these transactions during October.
AURORKA [14]
Kshdnxnnxnxnxnxnnxnxnxnxnxnxnxn =5
4 0
2 years ago
Given that I pint = 0.5 quarts, complete the conversion 76 pints= ?
eduard

Answer:

Step-by-step explanation:

38 quarts

8 0
2 years ago
Read 2 more answers
Other questions:
  • What is 67/100 as a decimal
    13·2 answers
  • Revenue flows into a company at a rate of f(t) = 3000 1 + 5t , where t is measured in years and f(t) is measured in dollars per
    14·1 answer
  • How many lines of symmetry does the figure below have?
    8·2 answers
  • Valeria opened her first bank account at Wells Fargo. she has 80 but she plans to withdraw $5 a week
    10·1 answer
  • Write the equation of a circle with center (6,4) that passes through the coordinate (2,1). In your final answer, include all of
    15·2 answers
  • What is the measure of the missing angle? 90 and 28<br>​
    6·1 answer
  • Evaluate the expression 2x^2-y^1+3x^0 for x=3 and y=7
    10·2 answers
  • PLZZZ help with this its pretty simple!
    11·2 answers
  • If Matrix A is 4 x 4, and Matrix B is 4 x 3, what is the size of matrix AB? If AB is undefined, please state so.
    12·1 answer
  • During April it was recorded that there were 19 days when it rained, mostly cloudy on 6 days and sunny on 5 days inference in th
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!