The estimate would be 1200.
We will set up a proportion for this. 10 out of 60 of the sample were tagged, so that is the first ratio. The 200 that were tagged would be in the numerator of the second ratio (10 was the portion tagged, and 200 is the portion tagged, so they both go on top). We do not know the total number so we use a variable:
10/60 = x/200
Cross multiply:
10*x = 60*200
10x = 12000
Divide both sides by 10:
10x/10 = 12000/10
x = 1200
The final expression would be -5x -50.
You could've got this by multiplying -5 and x together, which is -5x.
Multiply -5 and 10 together, and you get -50.
This is also called the Distributive Property. Hope this helped :)
Commutative property of multiplication
Answer: 3.3
Step-by-step explanation:
200(x-0.3)=600
Multiply x by 200 and 0.3 by 200
200x-60=600
Add 60 to both sides
200x-60=600
+60 +60
Add them
200x=660
Divide
660/200 = 3.3
Answer: 3.3
Your welcome :)
