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wel
3 years ago
14

What is the soulution of the equation 3(2x+5)=3x+4

Mathematics
2 answers:
lakkis [162]3 years ago
8 0

x=-\frac{11}{3}

or

x=-3.666666666666666666666666666666666666666666666

mel-nik [20]3 years ago
8 0

Answer:

x=-11/3

Step-by-step explanation:

Given equation is 3(2x+5)=3x+4

Multiplying 3 into the equation we get

6x+15=3x+4

Adding (-3x) and (-15) to both sides of equation

6x+15+(-3x)+(-4)=3x+4+(-3x)+(-15)

Simplifying

6x+15-3x-15=3x+4-3x-15

6x-3x+15-15=3x-3x+4-15

we know that +15-15=0 and 3x-3x=0

3x+0=0-11

3x=-11

dividing by 3 to both sides of equation we get

3x/3=-11/3

x=-11/3 which is the answer.


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Answer:

The answer is 12

Step-by-step explanation:


3 0
2 years ago
Please help and show clear instructions will give brainliest !
Tems11 [23]

Answer:

Answer is 3 because

Step-by-step explanation:

a=2

20*2= 40

40-1 = 39

b = 13

so 39/13 = 3

3 0
3 years ago
Read 2 more answers
For every 9 black and white copies printed there are 2 color copies printed. If there are 200 color copies printed how many blac
alexandr402 [8]

Answer:

<u>900</u> black and white copies are printed.

Step-by-step explanation:

Given:

For every 9 black and white copies printed there are 2 color copies printed.

If there are 200 color copies printed.

Now, to find the number of black and white copies are printed.

Let the number of black and white copies printed be x.

As given, for every 9 black and white copies printed there are 2 color copies printed.

So, 9 is equivalent to 2.

If there are 200 color copies printed.

Thus, x is equivalent to 200.

Now, to solve by using cross multiplication method:

\frac{9}{2} =\frac{x}{200}

<em>By cross multiplying we get:</em>

1800=2x

<em>Dividing both sides by 2 we get:</em>

900=x

x=900.

Therefore, 900 black and white copies are printed.

8 0
3 years ago
Read 2 more answers
What’s the slope of the parallel line that passes through (-19, 14) and (19, 11).
laiz [17]

Answer:

19,12

Step-by-step explanation:

6 0
2 years ago
In Triangle XYZ, A is the midpoint of XY, B is the midpoint of YZ, and C is the midpoint of XZ.
frutty [35]

The perimeter of triangle ABC is 24 units

Step-by-step explanation:

There is a fact in any triangle, the segment joining the mid points of

two sides of the triangle is:

  • Parallel to the third side
  • Its length is half the length of the third side

In Δ XYZ

∵ A is the mid point of XY

∵ B is the mid point of YZ

∴ AB = \frac{1}{2} XZ

∵ XZ = 18 units

∴ AB = \frac{1}{2} × 18 = 9 units

∵ C is the mid point of XZ

∵ B is the mid point of YZ

∴ BC = \frac{1}{2} XY

∵ AY = 7 units

∵ AY = \frac{1}{2} XY

∴ 7 = \frac{1}{2} XY

- Multiply both sides by 2

∴ 14 = XY

∴ BC = \frac{1}{2} × 14 = 7 units

∵ A is the mid point of XY

∵ C is the mid point of XZ

∴ AC = \frac{1}{2} YZ

∵ BZ = 8 units

∵ BZ = \frac{1}{2} YZ

∴ 8 = \frac{1}{2} YZ

- Multiply both sides by 2

∴ 16 = YZ

∴ AC = \frac{1}{2} × 16 = 8 units

∵ The perimeter of any triangle is the sum of the lengths of its sides

∴ Perimeter Δ ABC = AB + BC + AC

∴ Perimeter Δ ABC = 9 + 7 + 8 = 24 units

The perimeter of triangle ABC is 24 units

Learn more:

You can learn more about triangles in brainly.com/question/10677255

#LearnwithBrainly

3 0
3 years ago
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