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
4vir4ik [10]
2 years ago
11

To track the reptile population around a lake, researchers marked 36 turtles. A few weeks later, they counted 400 turtles, of wh

ich 20 were marked. To the nearest whole number, what is the best estimate for the turtle population?
Mathematics
1 answer:
aleksandr82 [10.1K]2 years ago
7 0

Answer: 720

Step-by-step explanation:

From the question, we are informed that cthe researches counted 400 turtles, of which 20 were marked. This implies that 20/400 = 1/20 were marked.

If the researchers wanted to track the reptile population around a lake, and the researchers marked 36 turtles, the estimate of the total population will then be:

1/20 × x = 36

x/20 = 36

x = 20 × 36

x = 720

The turtle population is 720

You might be interested in
Select the correct answer. What is the product of and ? A. 9/5 B. 2 C.175/30 D/29
jonny [76]

Step-by-step explanation:

the answer is c i took the test btw

4 0
2 years ago
Read 2 more answers
SOMEONE PLEASE HELP MEEEEE
natka813 [3]

Answer:

Area = 23.12 cm²

perimeter = 24.28 cm

Step-by-step explanation:

top shaded region is circular arc with 90° sector angle

so perimeter of arc is 90 / 360 * 2πr

here radius of arc is half the length of square side

r = 6.8/2 = 3.4

top area shaded perimeter = 90/360 * 2 * 3.14 * 3.4

= 1/4 * 2 * 3.14 * 3.4

= 5.338

bottom region perimeter is also same

total perimeter of shaded region is = side + side + two arcs

= 6.8 + 6.8 + 2 * 5.338

= 13.6 + 10.676

= 24.276

= 24.28

Area of top shaded region is 90/360 * πr²

A = 1/4 * 3.14 * 3.4²

= 9.0746

bottom shaded region area is half of area of square - area of bottom arc

= 6.8 * 3.4  - 9.0746

= 23.12 - 9.0746

= 14.0454

so total area of shaded region is 9.0746 + 14.0454

= 23.12

or you can just calculate area as half of area of total square = 6.8² / 2

= 23.12

8 0
2 years ago
If Kayla buys 50 apples for $20 what is the unit rate?
mote1985 [20]

Answer:

2.50 dollars an apple.

Step-by-step explanation:

Divide 50/20

4 0
3 years ago
Read 2 more answers
Вычислить площадь фигуры ограниченной графиками функций y=x^2-4 и y=0
faust18 [17]

Answer:

i unfortunately dont understand this language

7 0
3 years ago
What is the equation in point-slope form of the line passing through (−2, 1) and (4, 13)?
Ne4ueva [31]
It will pass through 2 -1 i did it on a caculator
4 0
3 years ago
Other questions:
  • A map is drawn with a scale of 1/2 inch to 5 actual. miles. If the map distance is 8 inches, whats the actual. distance
    11·1 answer
  • whats 2 times 5 plus 8 times six divided by 80.63 times zero. please help fast, totally not to give free points and brainliest
    6·2 answers
  • Angle 7<br><br> angle 1<br><br> angle 4<br><br> angle 3<br><br> angle 2<br><br> angle 8
    12·1 answer
  • In one hour, a satellite orbiting the Earth travels 1.1 x 10 m (meters). Which
    11·1 answer
  • -4<img src="https://tex.z-dn.net/?f=%5Cgeq" id="TexFormula1" title="\geq" alt="\geq" align="absmiddle" class="latex-formula">4(6
    10·1 answer
  • Ariel receives
    12·2 answers
  • How to do this? I confused lol.
    7·2 answers
  • The sentence 3 + (5 + 2) = (5 + 2) + 3 illustrates
    11·1 answer
  • The number of peas on Pauline's plate, 40, is 13 greater than the number on Doris's plate. How many peas are on Doris's plate?
    15·1 answer
  • Asking for help on this again because i reallu need it!!
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!