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yaroslaw [1]
2 years ago
6

HELLPPP I need help asappp

Mathematics
1 answer:
sattari [20]2 years ago
3 0

Answer:

(8,5)

Step-by-step explanation:

x=8

5*8-2y=30

40-2y=30 .      subtract 40 from both sides

-2y=-10 .           divide both sides by-2

y=5

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PLS HELP. WILL MARK BRAINLIEST In a​ capture/recapture program, 26​% of the animals recaptured have tags. Suppose 118 animals we
Mars2501 [29]

Total Population= 11800÷26

Step-by-step explanation:

  • Number of animals captured,tagged and released= 118
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    i.e, 26% of total animals= 118

    Let total number of animals = P

      (26÷100)× P =118

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3 0
3 years ago
C.) 4. Solve the system of equations
raketka [301]
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
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2 years ago
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Karolina [17]
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
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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
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So, the answers are
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2 years ago
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Harlamova29_29 [7]

Answer:

yeet on them

Step-by-step explanation:

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2 years ago
A used car was purchased in July 1999 for $11,900. If the car depreciates 13% of it's value each year, what is the value of the
trapecia [35]
1999 price = 11900
it depreciates 13%
\frac{13}{100} \times 11900 = 1547
year 2000 cost = 11900 - 1547 = 10353
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it depreciates 13%
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pls mark as brainliest
8 0
3 years ago
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