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Butoxors [25]
2 years ago
15

1. to replace a variable in a mathematical expression with an actual value

Mathematics
2 answers:
UNO [17]2 years ago
3 0

Answer:

1. its substitution

2.

3. order of operations

4. variable

5. equation

Step-by-step explanation:

Svetllana [295]2 years ago
3 0
Exactly what he said
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Solve for x using the given diagram
blagie [28]

Answer:

<h2>x = 1</h2>

Step-by-step explanation:

Look a t the picture.

The triangles on the picture are similar.

Therefore the sides are in proportion:

\dfrac{8x}{10}=\dfrac{4}{5x}              <em>cross multiply</em>

(8x)(5x)=(4)(10)

40x^2=40           <em>divide both sides by 40</em>

x^2=1\to x=\sqrt1\\\\x=1

7 0
3 years ago
1.The growth of a sample of bacteria can be modeled by the function b(t)=100(1.06)t where b is the number of bacteria and t is t
qwelly [4]

Given:

The growth of a sample of bacteria can be modeled by the function

b(t)=100(1.06)^t

where, b is the number of bacteria and t is time in hours.

To find:

The number of total bacteria after 3 hours.

Solution:

We have,

b(t)=100(1.06)^t

Here, b(t) number of total bacteria after t hours.

Substitute t=3 in the given function, to find the number of total bacteria after 3 hours.

b(t)=100(1.06)^3

b(t)=100(1.191016)

b(t)=119.1016&#10;

Therefore, the number of total bacteria after 3 hours is 119.1016.

4 0
3 years ago
What is the value of x in the equation x – y = 30, when y = 15?
slamgirl [31]
Since <span><span>−y</span></span> does not contain the variable to solve for, move it to the right side of the equation by adding <span>y</span> to both sides.<span>x=<span>y+<span>30</span></span></span>
5 0
3 years ago
What’s 9 less than 12
Marta_Voda [28]
The answer is 3 because 12-9=3
5 0
3 years ago
Read 2 more answers
What is the standard form of the equation 9(g-5h)
Lyrx [107]
9g-45h, you have to distribute 9
4 0
3 years ago
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