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Artyom0805 [142]
3 years ago
5

If 8x-4=6x-10, find the value of 3x

Mathematics
2 answers:
sertanlavr [38]3 years ago
6 0
8x - 4 = 6x - 10
8x - 6x = - 10 + 4
2x = -6
x = -3
3x = -9
AysviL [449]3 years ago
3 0

Answer:

3x = -9

Step-by-step explanation:

Move all terms containing x to the left side of the equation.

2x-4=-10

Move all terms not containing  x to the right side of the equation.

2x=-6

Divide each term by  2 and simplify.

x=-3

Replace the variable x with -3 in the expression.

3(-3)

Multiply 3 by -3

-9

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Step-by-step explanation:

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The batting wang xiu ying uses to fill quilts has a thermal conductivity rate of 0.03 watts (W) per meter(m) per degree celsius.
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For this unit conversion problem, you'll need to know:

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3 years ago
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PLS HELP ME ILL GIVE YOU BRAINIEST!!!
kenny6666 [7]

The <em>total surface</em> area of the three figures are 702 square feet.

<h3>How to estimate the amount of metal needed to produce a given amount of figures</h3>

According to this problem, we are required to determine the amount of metal needed to build three pieces with the dimensions presented in the figure.

In this case, we need to estimate the <em>total</em> surface area (A_{T}), in square feet, required for the production of the three pieces, that is, the product of the number of pieces (<em>n</em>), no unit, and the surface area of each piece (<em>A</em>).

Now we proceed to calculate the total surface area:

A_{T} = n\cdot A

A_{T} = 3\cdot \left[(5\,ft)\cdot (8\,ft) + (2\,ft)\cdot (8\,ft)+(8\,ft)\cdot (7\,ft)+(3\,ft)\cdot (8\,ft) \\

+(5\,ft)\cdot (8\,ft)+2\cdot (3\,ft)\cdot (5\,ft) + 2\cdot (4\,ft)\cdot (2\,ft) + (3\,ft)\cdot (4\,ft) ]

A_{T} = 702\,ft^{2}

The <em>total surface</em> area of the three figures are 702 square feet. \blacksquare

To learn more on surface areas, we kindly invite to check this verified question: brainly.com/question/2835293

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2 years ago
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Penelope goes to work after school for 4.5 hours on Mondays, Tuesdays, and Fridays. She doesn’t have classes on Wednesdays or Th
iVinArrow [24]

Answer:

Her hourly rate is <u>$14</u>.

Step-by-step explanation:

Given:

Penelope goes to work after school for 4.5 hours on Mondays, Tuesdays, and Fridays.

She works 8 hours each on Wednesdays or Thursdays.

Now, to find her hourly rate.

So, total hours Penelope work on Mondays, Tuesdays, and Fridays:

4.5+4.5+4.5=13.5\ hours.

And, total hours she work on Wednesdays and Thursdays:

8+8=16\ hours.

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13.5+16=29.5\ hours.

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The answer to the question

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