All categories

2 years ago

-18= 5-(6k - 19) i have the answer but i need help on how to get the answer 7?

Mathematics

1 answer:

insens350 [35]2 years ago

7 0

Answer:

k = 7

Step-by-step explanation:

Step 1: Write equation

-18 = 5 - (6k - 19)

Step 2: Solve for k

Distribute negative: -18 = 5 - 6k + 19

Combine like terms: -18 = -6k + 24

Subtract 24 on both sides: -42 = -6k

Divide both sides by -6: k = 7

Step 3: Check

Plug in k to verify it's a solution.

-18 = 5 - (6(7) - 19)

-18 = 5 - (42 - 19)

-18 = 5 - 23

-18 = -18

You might be interested in

What is the value of c in the equation y = 4x^2 -10x + c if the y-coordinate of the vertex is -7

love history [14]

Answer: $c=-\frac{3}{4}$

Step-by-step explanation:

Find the x-coordinate of the vertex with this formula:

$x=\frac{-b}{2a}$

In this case:

$a=4\\b=-10$

Substituting values, we get:

$x=\frac{-(-10)}{2(4)}=\frac{5}{4}$

Now we can substitute the coordinates of the vertex into the equation $y = 4x^2 -10x + c$ and then solve for "c".

Then:

$-7 = 4(\frac{5}{4})^2 -10(\frac{5}{4}) + c\\\\-7+\frac{25}{4}=c\\\\c=-\frac{3}{4}$

6 0

2 years ago

Which is the graph of f(x)=4(1/2)x

NemiM [27]

Answer:

here's the graph

Step-by-step explanation:

5 0

2 years ago

Beeeeep Beeeeep bleep bleep eiwowbw

Inessa [10]

Answer:

boop boop bow bow

Step-by-step explanation:

bleep bleep bow bing

7 0

3 years ago

Read 2 more answers

Been trying this for too long thanks

11Alexandr11 [23.1K]

Answer:

It's 1.6 and 0.8

Step-by-step explanation:

7 0

2 years ago

What is the discriminant of the equation x^2+11x-10=0

Burka [1]

The discriminant is b^2-4ac
ax^2+bx+c=0
x^2+11x-10=0

11^2-4(1)(-10)
1. Simplify 11^2 to 121
121-4(1)(-10)

2. Simplify 4*1*-10 to -40
121-(-40)

3. Simplify brackets
121+40

4. Simplify
161
Your discriminant is 161

7 0

3 years ago