All categories

2 years ago

Solve the equation. Write your answer as an integer or simplified fraction.

Mathematics

1 answer:

saw5 [17]2 years ago

6 0

Corrected question :

Solve the equation. Write your answer as an integer or simplified fraction.

8n - 7 (n - 2) = 18

Required Solution :

The given equation,

8n - 7 (n - 2) = 18

★ Multiplying -7 into (n - 2),

>> 8n - 7 × (n - 2) = 18

>> 8n - 7n + 14 = 18

★ On substracting 7n from 8n we gets,

>> n + 14 = 18

★ Now transposing 14 which is in L.H.S. into R.H.S. (Remember that sign would be . So 14 would be -14),

>> n = 18 - 14

>> n = 14

★ Therefore,

Value of n is 14.

Learn more from brainly.com :

brainly.com/question/27432186

brainly.com/question/22661149

brainly.com/question/26727230

You might be interested in

Please show your work! will be giving the brainiest

Yakvenalex [24]

Use the Pythagorean theorem:

x = √(12.7^2 - 6.2^2)

x = √(161.29 - 38.44)

x = √122.85

x = 11.08

Round to 11.1 m

6 0

3 years ago

A cylinder has a height of 5 centimeters and a radius of 2.3 centimeters. What is the volume of this cylinder?

Arlecino [84]

Answer:

c 83.10

Step-by-step explanation

3.14 times 2.3 times 5

4 0

3 years ago

Paralell to y=4x-6 through (12,10)

stiks02 [169]

ANSWER

The line that is parallel to $y=4x-6$ through $(12,10)$ is $y=2x-14$ .

EXPLANATION

The equation that is parallel to the line $y=4x-6$ has a slope that is equal to the slope of this line.

By comparing this equation to the general slope intercept form,

$y=mx+c$ ,this line has slope $m=2$ .

Hence the line parallel to this line also has slope $m=2$ .

Let $y=mx+b$ be the equation of the line parallel to the line

$y=4x-6$

We can substitute $m=2$ to obtain;

$y=2x+b$

If the line passes through the point $(12,10)$ ,then this point must satisfy its equation.

We substitute $x=12$ and $y=10$ to obtain;

$10=2(12)+b$

We this equation for $b$ .

$\Rightarrow 10=24+b$

$\Rightarrow 10-24=b$

$\Rightarrow -14=b$

We substitute this value of $b=-14$ in to $y=2x+b$ to get;

$y=2x+-14$ .

Hence the equation of the line that is parallel to $y=4x-6$ through $(12,10)$ is $y=2x-14$ .

3 0

3 years ago

Solve the quadratic equation by completing the square x^2+5x-3=0

PIT_PIT [208]

${\tt{x = \frac{ -b± \sqrt{ {b}^{2} - 4ac } }{2a} }}$

${\tt{ x = \frac{ - 5±\sqrt{{5}^{2} - 4 \times 1 \times ( - 3)} }{2 \times 1} }}$

${\tt{x = \frac{ - 5±\sqrt{25 + 12} }{2} }}$

${\tt{x = \frac{ - 5 ±\sqrt{37} }{2} }}$

$\: \:$

${\tt{x = \frac{ - 5 + \sqrt{37} }{2} }}$

${\tt{x = \frac{ - 5 - \sqrt{37} }{2} }}$

8 0

3 years ago

How many liters of peroxide should be added to 12 liters of an 8% peroxide solution so that the resulting solution contains 16%

Ilia_Sergeevich [38]

Um 12 liters i would think cause you double it

6 0

3 years ago