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3 years ago

Find the value of x X

Mathematics

1 answer:

IgorLugansk [536]3 years ago

5 0

Answer:

20 or 18

Step-by-step explanation:

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Select all the equations that are true. 24 x − 8 = 8 ( 3 x − 1 ) 24 x − 8 = 8 ( 3 x − 1 ) 6 m − 15 = 3 ( 2 m − 5 ) 6 m − 15 = 3

galina1969 [7]

Answer:

$24x - 8 = 8 ( 3 x - 1 )$

$6 m - 15 = 3 ( 2 m - 5 )$

$-7 x - 1 = - 1 ( 7 x + 1 )$

$-8 x -12 y - 16 = - 4 ( 2 x + 3 y + 4 )$

Step-by-step explanation:

Required

Select which of the equation is true

$24x - 8 = 8 ( 3 x - 1 )$

Open the bracket on the right hand side

$24x - 8 = 8 * 3 x - 8 *1$

$24x - 8 = 24x - 8$

Both sides of the equation are equal.

Hence, this equation is true

$6 m - 15 = 3 ( 2 m - 5 )$

Open the bracket on the right hand side

$6m - 15 = 3 * 2m - 3 * 5$

$6m - 15 = 6m - 15$

Both sides of the equation are equal.

Hence, this equation is true

$-7 x - 1 = - 1 ( 7 x + 1 )$

Open the bracket on the right hand side

$-7x - 1 = -1 * 7x -1 * 1$

$-7x - 1 = -7x -1$

Both sides of the equation are equal.

Hence, this equation is true

$16 a + 24 b = 8 ( 8 a + 16 b )$

Open the bracket on the right hand side

$16a + 24b = 8 * 8a + 8 * 16b$

$16a + 24b = 64a + 128b$

Both sides of the equation are not equal.

Hence, this equation is false

$-8 x -12 y - 16 = - 4 ( 2 x + 3 y + 4 )$

Open the bracket on the right hand side

$-8 x -12 y - 16 = - 4* 2 x -4 * 3 y -4 * 4$

$-8 x -12 y - 16 = -8x -12y -16$

Both sides of the equation are equal.

Hence, this equation is true

8 0

3 years ago

True or False: 2.4 ÷ 0.6 = 0.04 x 6 =

valkas [14]

Answer:

false

Step-by-step explanation:

7 0

3 years ago

sammy [17]

Answer:

Step-by-step explanation:

7=8.96

5=??

(5×8.96)÷7= 6.4

which is shown by A

8 0

4 years ago

A certain triangle has two 45° angles. What type of triangle is it?

Nitella [24]

Answer:

C. Right isosceles

Step-by-step explanation:

We have 2 angles that are the same, that means two sides have to be the same. That makes the triangle isosceles

There are 3 angles in a triangle. They add to 180

45+45+x = 180

90+x=180

90-90+x=180-90

x=90

The other angle is a 90 degree angle. A ninety degree angle is a right angle.

That makes the triangle a right isosceles triangle

8 0

3 years ago

The height of a coconut tree is 48 ft and the height of a papaya tree is 12 ft.

steposvetlana [31]

Answer:

Step-by-step explanation:

48/12=4

8 0

3 years ago