Total Population= 11800÷26
Step-by-step explanation:
- Number of animals captured,tagged and released= 118
- In capture/recapture program 26% have tags
i.e, 26% of total animals= 118
Let total number of animals = P
(26÷100)× P =118
26 P =118×100
P=11800÷26
You can set them equal to each other so -3x+4=4x-10 and then you add 3x and 10 on both sides and get7x=14 and then divided both sides by 7 and get x = 2 and check by plugging in and you get -2 for y on both so solution is x=2
Substitution is where we first Isolate one of the unknowns, express it in terms of the other unknown, and replace the isolated unknown with the other unknown in another equation. So that each time we only need to deal with one unknown. I think you'll get a better idea here:
First name these 2 equations with 1 and 2.
4x + 5y = 7 (1)
y = 3x + 9 (2)
Since y is already isolated in (2), so we can skip the isolation step and continue to substitute.
Substitute (2) into (1).
4x + 5(3x+9) = 7
Expand.
4x + 15x + 45 = 7
Group.
19x + 45 = 7
Shift +45 to the other side and turn it into -45.
19x = 7 - 45
19x = -38
Shift x19 to the other side, turn it into /19.
X = - 38/19
X = - 2
Now we solved x already, we can just substitute x= - 2 back to equation (2).
y = 3(-2) + 9
y = - 6 + 9
y = 3
So, the answers are
x = - 2
y = 3
Answer:
yeet on them
Step-by-step explanation:
1999 price = 11900
it depreciates 13%
year 2000 cost = 11900 - 1547 = 10353
it depreciates 13%
year 2001 cost = 10353 - 1345.89 = 9007.11
it depreciates 13%
year 2002 cost = 9007.11 - 1170.92 = 7836.19
pls mark as brainliest
