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gavmur [86]
3 years ago
13

13x + 8 - 3 equals 12x-4​

Mathematics
2 answers:
motikmotik3 years ago
8 0
13x+8-3=12x-4
13x+5=12x-4
So x= -9

Check: 13(-9)+5=12(-9)-4
-117+5=-108-4
-112=-112. It works!

So x = -9
givi [52]3 years ago
5 0

Answer:

x=9

Step-by-step explanation:

13x+8-3=12x-4

+4

13x+8+1=12x

13x+9=12x

-13x

9=1x

x=9

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Suppose you are asked to find the area of a rectangle that is 2.1-cm wide by 5.6-cm long. Your calculator answer would be 11.76
IRINA_888 [86]

Answer:

The area of the rectangle is 12 cm² (to two significant figures)

Step-by-step explanation:

To determine the area of a rectangle that is 2.1-cm wide by 5.6-cm long,

The area of a rectangle is given by

Area = l × w

where l is the length

and w is the width

From the question,

l = 5.6 cm

and w = 2.1 cm

Hence, Area of the given rectangle will be

Area = 5.6 cm × 2.1 cm

Area = 11.76 cm²

Now, we will convert the answer to two significant figures

Then,

Area = 12 cm²

Hence, the area of the rectangle is 12 cm² (to two significant figures)

3 0
3 years ago
Determine which property is demonstrated below;
aniked [119]

Answer:

  symmetric property

Step-by-step explanation:

The <em>symmetric property</em> is the one that tells you A=B means also B=A.

The obfuscating factor in this question is the renaming of angle SZW to angle WZS. Both names refer to the same angle.

3 0
3 years ago
How much money does an employee
Serga [27]

Answer:

D. 4000 per month

Step-by-step explanation:

If they make 48000 per year, to find how mmuch s/he makes in a month, we have to divide it by 12 because there are 12 months in a year.

$48,000/12= $4000 per month

8 0
3 years ago
What does the graph of an equation reveal about the solutions to the equation?
Triss [41]
It reveals whether the answers will be negative, and how many solutions the equation will have. 
3 0
3 years ago
Please help me
bixtya [17]

Answer:

<em>x=60°</em>

<em>x=48°</em>

<em>x=21°</em>

Step-by-step explanation:

<u>Inequalities</u>

The sum of the exterior and the interior angle of a triangle is 180°.

The measure of an exterior angle of a triangle is called x, thus the interior angle is 180-x.

This angle is said to be at least twice x, thus:

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180 ≥ 3x

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The measure of x must be less or equal to 60°.

Three possible solutions are:

x=60°

x=48°

x=21°

7 0
3 years ago
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