All categories

3 years ago

3х – 13 = 23 Please give an explanation to the answer

Mathematics

2 answers:

Dmitry_Shevchenko [17]3 years ago

7 0

Answer:

x = 12

Step-by-step explanation:

This equation is very easy to solve.

3x - 13 = 23 Add 13 to both sides of the equation.

3x = 36 Divide by 3 on both sides of the equation.

x = 12

Then, check your answer by substituting the solved value.

3(12) - 13 = 23

36 - 13 = 23

23 = 23

Therefore, x = 12 is the solution to the equation.

Irina-Kira [14]3 years ago

3 0

Answer:

x = 12

Step-by-step explanation:

3x - 13 = 23

Bring non-variable numbers to other side:

3x = 36

Divide both sides by 3:

x = 12

You might be interested in

Plz i need help soon

lana66690 [7]

The answer is C. It has the wrong graph labels.

7 0

4 years ago

For A I somehow got 41.05 but its 2.95cm can someone show me the working and what I did wrong?

777dan777 [17]

Answer:

Step-by-step explanation:

a). tan(75°) = $\frac{\text{Opposite side}}{\text{Adjacent side}}$

= $\frac{11}{k}$

k = $\frac{11}{\text{tan}(75)}$

k = 2.947

k = 2.95 cm

b). cos(52°) = $\frac{16}{s}$

s = $\frac{16}{\text{cos}(52)}$

s = 25.988

s ≈ 25.99 cm

c). sin(5°) = $\frac{\text{Opposite side}}{\text{Hypotenuse}}$

= $\frac{16.1}{q}$

q = $\frac{16.1}{\text{sin}(5)}$

q = 184.727

q ≈ 184.73 cm

4 0

3 years ago

If a rectangular poster has an area of

d1i1m1o1n [39]

$2x ^2 - 9x + 10=\\
2x^2-4x-5x+10=\\
2x(x-2)-5(x-2)=\\
(2x-5)(x-2) \Rightarrow C$

8 0

3 years ago

Imma keep on saying this I understand some of it but not all againnnn I’m sorryyy

Mariulka [41]

Answer:

6) The answer is 210p - 105

7) The answer is -124q + 216

Step-by-step explanation:

1. Always Distributive Property first

6) -14 (8 - 15p) 7) -12 ( -18 + 10q)

-112 +210p 216 -120q

2. Combine like terms

6) -112 + 7 = -105 your full answer is 210p -105

7) -120q + -4q = -124q Your full answer is -124q +216.

Hope this helps.

6 0

3 years ago

Find the value of x in 4:x::x:16

AnnyKZ [126]

Given:

4:x::x:16

To find:

The value of x.

Solution:

We have,

4:x::x:16

It means, we have

4:x = x:16

It can be rewritten as

$\dfrac{4}{x}=\dfrac{x}{16}$

On cross multiplication, we get

$4\times 16=x\times x$

$64=x^2$

Taking square root on both sides.

$\pm \sqrt{64}=x$

$\pm 8=x$

Since ratio can be negative or positive, therefore, the value of x is either -8 or 8.

4 0

3 years ago