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3 years ago

Solve the equation 12x+6y= 24 for x.

Mathematics

2 answers:

velikii [3]3 years ago

7 0

Answer: x = -1/2y + 2

Step-by-step explanation:

12x + 6y = 24 To solve for x first start by subtracting 6y from both sides

- 6y -6y

12x = 24 - 6y Now divide each side by 12

x= 2 - 1/2y

Ilia_Sergeevich [38]3 years ago

3 0

X=1.5 What you want to start with is isolating the x variable. To do that you want to get the 6y on the other side of the equal sign so you subtract 6y and so your equation should look like this 12x=-6y+24. Now you need to get x by itself so you need to divide the -6y+24 by 12 to get the x by itself. That then gets you -.5+2=x so the final answer would be x=1.5

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Plot and connect the following points: P(1, −4), Q(5, −2), R(9, −4), S(7, −8), and T(3, −8). Give the best name for the polygon,

Citrus2011 [14]

Answer:

The area of the pentagon is = 31.5

Step-by-step explanation:

First, we determine the perimeter of the "Pentagon" drawn in the attachment:

$p=4+4+4+4.5+4.5=21$

Now, we'll check the formula for pentagons:

$a=\frac{perimeter x apothem}{2}$

we calculate the apothem by placing a 90° angle in one of the sides of the shape. It is equal to:

apothem=3

then, we can substitute the values in the formula

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Let me know if you have questions :D

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3 years ago

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PtichkaEL [24]

A.
14+x

B. 6y

Hope I helped!

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4 years ago

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svp [43]

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6 0

3 years ago

A company will need 25,000 in 7 years for a new additon. To meet this goal, the company deposits money into an account today tha

Mrac [35]

You can use the simple interest formula
$P = irt$

We need P, which is the primary (or principal) investment, and we know that:

rate = 3% (0.03)
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So, just plug in and solve:
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6 0

4 years ago

Pls help, i really need help with. i will mark brainliest with the best/correct answer!!!

Ne4ueva [31]

Answer:

Number 1 is 12.

Step-by-step explanation:

{Solve by cross multiplication}

17 • x = 3 • (80 - x)

{Multiply 3 by distribution,}

17x = 240 - 3x

{Add 3x to both sides of the equation,}

20x = 240

{Divide through out by 20,}

20r/20 = 240/20

x = 12

Thus there were 12 pens :)

6 0

3 years ago