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
9

Robin wants to find out the number of salamanders by a pond near her house. She catches 45 of them, puts a leg band on each sala

mander, and puts them back by the pond. The next week, she catches 50 salamanders. Of those 50 salamanders, 3 have a leg band. Using this information, what is a reasonable estimate of the number of salamanders by the pond?
Mathematics
1 answer:
Verdich [7]3 years ago
8 0
Given:
1st week: caught 45 salamanders and put leg bands on them
2nd week: caught 50 salamanders and 3 have leg bands

3/50 = 0.06 of the salamander population have leg bands.

45 / 0.06 = 750 total number of salamanders 

<span>45/750 = 0.06 or 6% </span>

The reasonable estimate of the number of salamanders by the pond is 750 salamanders.


You might be interested in
10x^2+50 factoring by taking out the greatest common factor
inessss [21]

Answer:

The greatest common factor is 10

Step-by-step explanation:

Once you factor it out, you have :

10(x^2+5)

8 0
3 years ago
In the united states the speed limit signs are in Miles per hour. Unfortunately, your speedometer only reads in km/hour. How man
ohaa [14]

Hello,

1mph = 1.60934kph

70 x 1.60934 = 112.6538

Answer:

70mph = 112.6538kph

8 0
3 years ago
Subtract: 6/2x^+8x - x/4x^+12x-16 = 6/2x(x+4) - x/4(x+4)(x-1) = 6•2(x-1)/2x(x+4)•2(x-1) - x•x/4(x+4)(x-1)•x
ss7ja [257]

Answer:

$\frac{-x^2+12x-12}{4x(x+4)(x-1)}$

Step-by-step explanation:

$\frac{6}{2x(x+4)}- \frac{x}{4(x+4)(x-1)} $

$\frac{6\cdot2(x-1)}{2x(x+4)\cdot2(x-1)}- \frac{x\cdot x}{4(x+4)(x-1)x} $

$\frac{12(x-1)}{4x(x+4)(x-1)}- \frac{x^2}{4x(x+4)(x-1)} $

$\frac{12(x-1)-x^2}{4x(x+4)(x-1)}$

$\frac{-x^2+12x-12}{4x(x+4)(x-1)}$

5 0
3 years ago
What is the factor to this as a expression?
kotegsom [21]

Answer:

The expression is not factorable with rational numbers

Step-by-step explanation:

7 0
2 years ago
Tyler is 5 years younger than three times his cousin Lejla's age. Tyler is 40 years old.
Brut [27]

Answer:

I times 3-5

Step-by-step explanation:

   

Their are other ways to do it

Sorry if it is not the answer you were looking for.

3 0
3 years ago
Read 2 more answers
Other questions:
  • When running a 100 meter race matt reaches his maximum speed when he is 40 meters from the starting line, and 7 seconds have ela
    7·2 answers
  • (9.5) - (-4.36) (1.094)
    13·1 answer
  • 17. Fruit drink A consists of 6% pure fruit juice and drink B consists of 15% pure fruit
    11·2 answers
  • Write the word sentence as an equation. Then solve.<br><br> A number x multiplied by 25 is 320.
    11·1 answer
  • The volumes of two-spheres are in the ratio of 8:27. The radius of the smaller sphere is 30 inches. Find the radius of the large
    11·1 answer
  • What is the answer to (-4, 7), (-6, -4)
    14·1 answer
  • Word bank please help
    9·1 answer
  • Please someone help me with this I’m very confused
    10·1 answer
  • Example 15
    14·1 answer
  • What sentence represents this equation? 912=15−x 912 ​is the same as a number decreased by 15. 15 decreased by 912 is the same a
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!