3 years ago

3x- 5=1 what does x represent

Mathematics

2 answers:

V125BC [204]3 years ago

8 0

Answer:

x=2

Step-by-step explanation:

3x=5+1

3x=6

x=6/3

x=2

Yuliya22 [10]3 years ago

7 0

X=2

3x-5=1
Add 5+1=6
So you get 6/3
Then divide both sides by 3 since each side can be divided by 3 and you get
X=2

You might be interested in

Can someone help me with both of these? What do I do with the 68 and 79?

Nutka1998 [239]

What he said just click on that

3 0

3 years ago

An express train started at its home station. In 3 hours, it was 285 miles away. In 5 hours, it was 475 miles away. How fast was

Sedbober [7]

Answer:

95 mi/hr

Step-by-step explanation:

475/5 = 95

285/3 = 95

6 0

3 years ago

Solve a Quadratic EquationUse the following equation to answer the questions:3x2 - 8x + 1 = 314 1 pointWhat is the discriminant?

emmainna [20.7K]

Δ=88

1) Using the Quadratic Equation to Solve

3x²-8x+1=3

3x²-8x+1-3=3-3

3x² -8x -2=0

2)Let's find the discriminant

Δ= (-8)²-4(3)(-2)

Δ=64 -4(3)(-2)

Δ=88

8 0

1 year ago

What is -8/12 in decimal form

Degger [83]

-0,666666666666666666666667

3 0

3 years ago

When do we use the addition and subtraction formulas for sine or cosine?

777dan777 [17]

When we need the cosine of the sum of two angles, we use the addition formula for cosine.

When we need the sine of the difference of two angles, we use the difference formula for sine.

Let's try one. Say we needed to know

$\cos 15^\circ
$

We're only expected to know the trig functions of 30/60/90 and 45/45/90 triangles. Fortunately, $15^\circ = 45^\circ - 30^\circ$ so

$\cos 15^\circ = \cos( 45^\circ - 30^\circ )$

$= \cos( 45^\circ) \cos(30^\circ ) + \sin(45^\circ) \sin(30^\circ)$

$= \dfrac{\sqrt{2}}{2} \cdot \dfrac{ \sqrt{3}}{2} + \dfrac{\sqrt{2}}{2} \cdot \dfrac{1}{2}$

$\cos 15^\circ = \frac{1}{4} (\sqrt{6} + \sqrt{2})$

4 0

3 years ago