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3 years ago

I am thinking of a number.

Mathematics

2 answers:

Neko [114]3 years ago

4 0

Answer: The number is 14

Step-by-step explanation:

11x - 78 = 6x - 8

11x -6x = -8 + 78

5x = 70

x = 14

maksim [4K]3 years ago

3 0

Answer:

-278

Step-by-step explanation:

3 x 11 = 33

33 - 78 = -45

-45 x 6 = -270

-270 - 8 = -278

I think I might of did it wrong.... :C

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Help i’m begging plsss

olga_2 [115]

Answer:

$x=8$

Step-by-step explanation:

Given

$AB||CD$

$\angle ABC = 5x + 50$

$\angle BCD = 7x + 34$

Required

Find x

If $AB||CD$ i.e. If AB is parallel to CD, then

$\angle ABC = \angle BCD$

Substitute values for ABC and BCD

$5x + 50 = 7x + 34$

Collect Like Terms

$5x - 7x = -50 + 34$

$-2x = -16$

Multiply through by $-\frac{1}{2}$

$-\frac{1}{2} * -2x = -16 * -\frac{1}{2}$

$\frac{1}{2} * 2x = 16 * \frac{1}{2}$

$\frac{2x}{2} = \frac{16}{2}$

$x = \frac{16}{2}$

$x=8$

3 0

3 years ago

Find the Perimeter and area

Maslowich

Perimeter is 36. This is because the radius and side lengths are the same in a regular hexagon.

Are is roughly 93.53.

6 0

4 years ago

If a pair of parallel lines are rotated

Sever21 [200]

They are still parrallel lines

4 0

4 years ago

Solve the proportion to determine the value of x4x/15=60/x

frozen [14]

4x/15 = 60/x
4x^2 = 900
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4 0

4 years ago

Find the area of the circle. Use 3.14 for Pi

IceJOKER [234]

Answer:

113.04 cm squared

Step-by-step explanation:

the area of a circle is:

A=πr2

so as you written before the pi must be 3.14

and the radius is the diameter/2(12/2=6)

A= 3.14 x 6 x 6

A= 113.04 cm squared

3 0

3 years ago

Read 2 more answers