All categories

2 years ago

I need help with this equation. Please solve for k

Mathematics

1 answer:

Levart [38]2 years ago

8 0

Hey there!

18 = -k + 3

-k + 3 = 18

-1k + 3 = 18

SUBTRACT 3 to BOTH SIDES

-1k + 3 - 3 = 18 - 3

SIMPLIFY IT!

-1k = 18 - 3

-1k = 15

DIVIDE -1 to BOTH SIDES

-1k/-1 = 15/-1

SIMPLIFY IT!
k = 15/-1

k = -15

Therefore, the answer is: k = -15

Good luck on your assignment & enjoy your day!

~Amphitrite1040:)

You might be interested in

labwork [276]

The correct answer would be C

Hope this helped

8 0

3 years ago

The table shows a linear function. <br>which equation represents the function?

Bas_tet [7]

Answer:

Option C is correct.

The equation $f(x)= -\frac{1}{2}x +4$ represents the function.

Step-by-step explanation:

Using slope intercept form to find the equation of line :

For any two points $(x_1, y_1)$ and $(x_2, y_2)$ the equation of line is given by:

$y -y _1 = m(x-x_1)$ ......[1] ;where m is the slope given by:

$m = \frac{y_2-y_1}{x_2-x_1}$

Consider any two points from table :

let (4, 2) and (0, 4) be any two points.

calculate slope:

$m = \frac{y_2-y_1}{x_2-x_1}= \frac{4-2}{0-4}$

$m = \frac{2}{-4} = -\frac{1}{2}$

Now, substitute in equation [1] we have:

$y - 2 = -\frac{1}{2} (x-4)$

Distributive property i.e, $a\cdot (b+c) = a\cdot b + a\cdot c$

$y -2 = -\frac{1}{2}x +2$

Add both sides 2 we get;

$y -2+2 = -\frac{1}{2}x+2+2$

Simplify:

$y = -\frac{1}{2}x+4$

Since, y= f(x)

$f(x)= -\frac{1}{2}x +4$

therefore, the equation $f(x)= -\frac{1}{2}x +4$ represents the function.

8 0

3 years ago

Geometric of <br> 1/3, 2/9, 4/27, 8/81, 16/243

Nataliya [291]

A The answer is
n
=
2
n
−
1
3
n

5 0

3 years ago

Enter an equation that can be used to solve this problem, where x represents the number of hours that Roberto had been traveling

nalin [4]

45mph x35 mph = 1 hour

6 0

3 years ago

The running trail in the local park is 2.826 miles long. If the park board were planning to extend the trail by 1.46 miles, what

eimsori [14]

Extend means to increase, add length to it, ADD.
2.826
+ 1.46
--------------
4.286

5 0

3 years ago