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adoni [48]
3 years ago
15

3(5x + 2) = 2(3x - 6) Step by step please give me the right answer . Thank u

Mathematics
2 answers:
fgiga [73]3 years ago
5 0

Step-by-step explanation:

<h2>15x + 6 = 6x - 12</h2><h2>15x - 6x = -12 - 6</h2><h2>9x = 18</h2><h2>x = 18/9 </h2><h2>x = 2</h2>
Solnce55 [7]3 years ago
4 0

Answer:

x = -2

Step-by-step explanation:

3(5x + 2) = 2(3x - 6)

<em>Expand the brackets. </em>

15x + 6 = 6x - 12

<em>Isolate the unknown variable x. </em>

15x - 6x = -12 - 6

<em>Evaluate. </em>

9x = -18

<em>Find x. </em>

x = -18 ÷ 9

x = -2

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If f(x) = x over 2 + 8, what is f(x) when x = 10?
jeka57 [31]

Answer:

f(10) = 13

Step-by-step explanation:

f(x) = x/2 + 8

Let x = 10

f(10) = 10/2 +8

f(10) = 5+8

f(10) = 13

8 0
3 years ago
If a triangle has angles 42 and 35 degrees , what is the measure of the third angle ?
alekssr [168]

Answer:

Triangle = 180 Degrees, so 77.

Step-by-step explanation:

42+35+x=180

x = 77

7 0
3 years ago
Michelle found the area of a circle as 78.5 . She used 3.14 for π. What is the radius of the circle? Explain how you found your
NikAS [45]

Answer:

5 units

Step-by-step explanation:

Given:-

- The area of the circle was computed to be A = 78.5

- The value of π is estimated to be = 3.14

Find:-

What is the radius of the circle?

Solution:-

- The area of a circle (A) with radius ( r ) is computed by the following formula:

                            A = π*r^2

- Divide the equation by π :

                            r^2 = ( A / π )

- Take the square root of the entire equation:

                            r = √ ( A / π )

- Substitute the given values:

                           r = √ ( 78.5 / 3.14 )

- Resolve the fraction:

                          r = √25

- The perfect square root of 25

                         r = 5

Answer: The radius of the circle is r = 5 units

                         

3 0
3 years ago
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I NEED HELP ON THIS CONSTRUCTED RESPONSE! :(
Simora [160]

Answer:

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Step-by-step explanation:

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Multiply both sides by 2.

9(8 - x) + 2 * 36 = 2 * 102 - 5(3x + 24)

Distribute on both sides.

72 - 9x + 72 = 204 - 15x - 120

Combine like terms on each side.

144 - 9x = 84 - 15x

Subtract 144 from both sides. Add 15x to both sides.

6x = -60

Divide both sides by 6.

x = -10

7 0
3 years ago
How many sides does a hexagon have
Gekata [30.6K]

Answer:

Step-by-step explanation:

by definition, a hexagon has six sides.

the prefix "hex-" is derived from the greek "hexi-" which means 6

5 0
3 years ago
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