Do multiplication first than divide
first add an than subtract
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
(Since the perimeter is the length of each sides added up. Two sides are equal to x+6 and two are equal to x-6)
2 (x+6) + 2 (x-6) = 48
(break out the brackets)
2x + 12 + 2x -12 = 48
( 12 and -12 cancel out and "disappear".)
2x + 2x = 48
4x = 48
(Rearrange for x)
x = 48 / 4
x = 12 inches
Feel free to ask if you have any questions
Answer:
y = x - 8
Step-by-step explanation:
y = x - 8
Check your answer using (0, -8):
y = x - 8
-8 = 0 - 8
-8 = -8
This statement is true
Also, view the attached graph.
Hope this helps!
your equation is x=1.5
so every hour there's another 1.5 cm of rain
