subject
Mathematics, 14.04.2021 22:20 10040816

Researchers safely captured 16 river dolphins and placed a painless tag under their flippers. These river dolphins were quickly returned to the water. Two weeks later, the researchers captured 21 dolphins and found that 3 of them had already been tagged. Estimate the number of river dolphins in the Amazon River. Set the problem up as a proportion with a variable and solve.
(I got this math question and I can't even understand it at all please please help)

ansver
Answers: 2

Another question on Mathematics

question
Mathematics, 21.06.2019 15:00
Cherie measures and records the lengths and sizes of the same style of a sandal found at a shoe store. which equation can be used to determine the approximate shoe size, s, for a foot length of x inches? s = x – 2 s = 2x – 10 s = x + 6 s = 2x + 4
Answers: 3
question
Mathematics, 21.06.2019 16:20
Match each statement with its corresponding value for the system below: y = -2(3)x and y = 9x - 2 1. the number of points of intersection. -2 2. the x-coordinate of the solution. 1 3. the y-coordinate of the solution. 0
Answers: 3
question
Mathematics, 21.06.2019 22:30
Aright triangle has an area of 21 m2. the dimensions of the triangle are increased by a scale factor of 4. what is the area of the new triangle
Answers: 3
question
Mathematics, 21.06.2019 23:50
Astudent draws two parabolas both parabolas cross the x axis at (-4,0) and (6,0) the y intercept of the first parabolas is (0,-12). the y intercept of the second parabola is (0,-24) what is the positive difference between the a values for the two functions that describe the parabolas
Answers: 3
You know the right answer?
Researchers safely captured 16 river dolphins and placed a painless tag under their flippers. These...
Questions
question
Social Studies, 27.08.2019 01:30
question
Mathematics, 27.08.2019 01:30
Questions on the website: 13722367