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o-na [289]
3 years ago
12

Which value of x makes the following equation true?

Mathematics
1 answer:
Vlad [161]3 years ago
8 0
3(x-3) = -3x + 39
3x - 9 = -3x + 39
3x + 3x = 39 + 9
6x = 48
x = 48/6
x = 8

In short, Your Answer would be Option C) 8

Hope this helps!

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In a water treatment plant, water passes through a cone-shaped filter with a height of 4 m and a diameter of 9 m. The water flow
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B is the answer!!!!!!!!1

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3 years ago
The price of an item has risen to $136 today. Yesterday it was $80. Find the percentage increase.
Natalka [10]

well, the numeric difference will be 136 - 80 = 56, now, if we take 80 (original price) to be the 100%, what is 56 (the increase) in percentage off of it?

\begin{array}{ccll} amount&\%\\ \cline{1-2} 80&100\\ 56&x \end{array}\implies \cfrac{80}{56}=\cfrac{100}{x}\implies \cfrac{10}{7}=\cfrac{100}{x} \\\\\\ 10x=700\implies x = \cfrac{700}{10}\implies x = \stackrel{\%}{70}

4 0
3 years ago
A four sided figure with 90° angles and two sets of opposite sides that are parallel and congruent is called a _________________
oee [108]

Answer:There are three special kinds of parallelograms. A rectangle is a quadrilateral because it has four sides, and it is a parallelogram because it has two pairs of parallel, congruent sides. All four angles are right angles

Step-by-step explanation:

please mark me brainlist and good stuff

4 0
3 years ago
Read 2 more answers
A company estimates that its cost and revenue can be modeled by the functions C)-0.75x+20,000
lisabon 2012 [21]

Let C(x) = -0.75x + 20,000 and R(x)= -1.50x then the profit function exists noted as P(x) = R(x) - C(x)

P(x) = -1.50x - (-0.75)x + 20,000

P(x)  = -0.75x + 20000

Therefore, the profit function exists -0.75x + 20000.

<h3>How to find profit function?</h3>

The profit function can be estimated by subtracting the cost function from the revenue function. Let profit be expressed as P(x), the revenue as R(x), the cost as C(x), and x as the number of items traded. Then the profit function exists noted as P(x) = R(x) - C(x).

Given:

C(x) = -0.75x+20,000 and R(x)= -1.50x

P(x) = R(x) - C(x)

= -1.50x - (-0.75)x + 20,000

= -1.50x + 0.75x + 20,000

Apply rule -(-a) = a

= -1.5x + 0.75x + 20000

Add similar elements:

-1.5 x + 0.75x = -0.75x

P(x)  = -0.75x + 20000

Therefore, the profit function exists -0.75x + 20000.

To learn more about profit function refer to:

brainly.com/question/16866047

#SPJ9

8 0
2 years ago
What is the answer to -2+(-20)
Nostrana [21]
-2+(-20)
-2 - 20
-22
 +-= -
5 0
3 years ago
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