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ruslelena [56]
3 years ago
14

An ecosystem is a collection of living and non-living things that work together.

Mathematics
2 answers:
Tcecarenko [31]3 years ago
8 0

Answer:

True

Step-by-step explanation:

Tema [17]3 years ago
6 0
True
The answer is true
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The ratio of blue tacks to red tacks on the bulletin board is 3 to 5. there are 50 red tacks. how many blue tacks are on the boa
natulia [17]
3:5=x:50

Therefore 5 ×x = 50

x = 10

Therefore 3 × 10 = 30

therefore 30 blue pens

proof = 30 blue + 50 red= 3+ 5

therefore 80 = 8x

8 0
4 years ago
Read 2 more answers
For f(x)=2x − 3 , for what value(s) of x does f(x) = 13?
kogti [31]

f(x) = 2x - 3, for f(x) = 13

13 = 2x - 3

Add 3 to both sides.

16 = 2x

Divide both sides by 2

8 = x

3 0
3 years ago
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how do i know whether to subtract or divide when isolating a number? (example, 2a, do i subtract or divide?)
bogdanovich [222]

Answer:

Example 2a should be divided

8 0
4 years ago
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What is the length of the base of a triangle with height 18 m and area 99 square m?
Ivan
Use the equation for the area of a triangle:
A =  \frac{1}{2} hb
where A = area, h = height of the triangle, and b = base of the triangle.

You know that h=18m and A=99m^{2}. Plug those values into the equation and solve for b, the base.
A = \frac{1}{2} hb \\ 
99 = \frac{1}{2} (18)b \\ 
99=9b\\
b=11

The base is 11m long. 
8 0
3 years ago
Read 2 more answers
My question is 9 + 12n
Aliun [14]

Answer:

3(3 +4n)

OR

9 + 12n

Step-by-step explanation:

9 + 12n

Factorize it

3(3 +4n)

OR

The answer is the same.

Since we can't add a number with a number and letter. So in that case the answer is ;

9 + 12n.

<h3>Hope it helps!!</h3><h3><em>Please mark me as the brainliest</em><em>!</em><em>!</em><em>!</em></h3>

<em>Thanks</em><em> </em><em>!</em><em>!</em><em>!</em><em>!</em>

3 0
3 years ago
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