solve Kx + 12 = 3kx for x

Answer:

x = 7

Step-by-step explanation:

x² - 5x - 14 = 0

(x + 2)(x − 7) = 0

x = -2, 7

76

Step-by-step explanation:

10+14+24+28=76 miles long

Answer:

(x−2)(x+5)

Step-by-step explanation:

Answer:

Step-by-step explanation:

= > 3x + x^2 - 10

= > x^2 + 3x - 10

= > x^2 + (5 - 2)x - 10

= > x^2 + 5x - 2x - 10

= > x(x + 5) - 2(x + 5)

= > (x - 2) (x + 5) ... factors

To find b, start by subtracting 20 from both sides:

50 = -1/3b + 20

-20 -20

30 = -1/3b

Now isolate b by dividing both sides by -1/3:

30/(-1/3) = (-1/3b)/(-1/3)

-90 = b

b is 90!

hope this helps !!

Height / Width = 1.2in / 2.1in

Height / Width x / 84in (7feet)

Solve for X using cross multiplation

2.1x = 1.2 * 84

2.1x = 100.8

x (height) = 48 inches or 4 feet.

Answer:

an answer to a question in number form??

Step-by-step explanation:

Answer:

X=24

Step-by-step explanation:

55-31 is 24

Answer:

x+31°=55°[alternate angle]

x=55°-31°

x=24°

answer

Answer:

-8m+24-32n

Step-by-step explanation:

8×m,-3and 4n

Answer: -13 and 64

ghjfgkhkf

Answer:

The lowest score was -13, and the highest score was 73.

Explanation:

No explanation needed.

It's on the picture

It's on the picture

Answer:

[tex]x=1[/tex]

Step-by-step explanation:

Because vertical angles are always equal, we want to solve [tex]50x+10=70x-10[/tex].

We can add 10 to both sides to get [tex]50x+20=70x[/tex].

We can subtract [tex]50x[/tex] from both sides to get [tex]20=20x[/tex].

Lastly, we divide both sides by 20 to get [tex]1=x[/tex].

So, [tex]\boxed{x=1}[/tex] and we're done!

The check is left as an exercise to the reader.

Answer:

x= 1

Step-by-step explanation:

TO solve you can use the equation 50x+10=70x-10.

First, subtract 10 from both sides:

50x= 70x-20

Then subtract 70x from both sides:

-20x=-20

Then divide by -20:

x=1

Check your work:

50(1)+10=70(1)-10

50+10=70-10

60=60

Hope this helps!

6*1/3=6/3=2 hours

hope it helped

Answer:

DILATION

Step-by-step explanation:

5 right triangles are shown. Triangles 1, 2 and 4 have identical side lengths and angle measures. Triangle 4 is

Answer: 4

Step-by-step explanation: i hope this helps :)

Answer:

it's a.

Step-by-step explanation:

Answer:

8x+22=67

Step-by-step explanation:

Answer:

-27/35, and the decimal answer -0.77142857142

Step-by-step explanation:

multiply the fractions- 3 x 9 equals 27, 7 x 5 equals 35. The answer is negative.

Answer:

1000 grams per pint

Step-by-step explanation:

2 kg / qt * (1 qt / 2 pints) * (1000 grams/ kg ) = 1000 grams /pint

Answer:

See below.

Step-by-step explanation:

x^2 - 6x + 1 = 0

x^2 - 6x = -1

We halve the coefficient of  x (which is -6/2 = -3) and square it, then add this to both sides:-

x^2 - 6x + (-3)^2 = -1 + (-3)^2

x^2 - 6x + 9 = -1 + 9

(x - 3)^2 = 8

x - 3 = ±√8

x =  3 ± √8

= 0.17, 5.83   to 2 decimal places.

Answer:

[tex]x = - 2 \sqrt{2} + 3 \\ or \\ x = 2 \sqrt{2 } + 3[/tex]

Answer:

The answer is -15.

Step-by-step explanation:

1. 2x - 1

2. 2(-7) - 1

3. (-14) - 1

4. -15

By plugging in our x value, we are able to use PEMDAS to  multiply 2 and the value of x and then, we subtract 1 from the value we got from step 3 to get -15.

Answer: no idea

Step-by-step explanation:

Answer:

Step-by-step explanation:

find a number that can go into 30 and go and then what ever you get multiply it with five and X will be your answer

Answer: 452.2

Step by Step Explanation: Find the number in the tenth place 1 and look one place to the right for the rounding digit 6 round up if this number is greater than or equal to 5 and round down if it is less than 5

.

Rounding 452.16 to the nearest tenth gives us: 452.1.

Given that we need to round 452.16 to the nearest tenth,

We look at the digit in the hundredth place, which is the second decimal place, and round 452.16 to the nearest tenth.

One is the digit at the hundredth position.

We round down because 1 is less than 5, therefore.

Simply drop all the digits following the tenths place and leave the tenths place digit alone if you want to round down.

Rounding 452.16 to the nearest tenth, we obtain: 452.1.

Hence rounding 452.16 to the nearest tenth gives us: 452.1.

Learn more about rounding figures click;

https://brainly.com/question/28879640

#SPJ6

Answer:

a = 26.241

b = 47.448

Step-by-step explanation:

Answer:

4g + 5h

------------

   x

Step-by-step explanation:

Answer:

x < -15

Step-by-step explanation:

Here is the solution:

-3x-42 > 3

Add the numbers

-3x > 45

Divide both sides of the inequation by -3 and flip the inequality sign.

x < -15

Answer:

[tex]x = \frac{25}{9}[/tex]

Step-by-step explanation:

Divide both sides by 9 to isolate x:

[tex]\frac{9x}{9} = \frac{25}{9} \\x = \frac{25}{9}\\[/tex]

Hope this helps!

Answer:

21

Step-by-step explanation:

for the 42.

21×2=42

t t t t t t. t tt. t t t. r r r 4 4 4. r r r t t t t t t t t r r r r r r t. tt t t f f. re enne e r r r

Answer:

9

Step-by-step explanation:

Simply plug -3 in for x.

-2(-3)^2-7(-3)+6

(-3)^2=9

9*-2= -18

-7*-3=21

-18+21=3

3+6=9

Answer:

f(-3) = 9

Step-by-step explanation:

Here we have a quadratic function in x:  and we want to know the value of this function when x = -3.

Substituting -3 for x in f(x) = -2x^2 - 7x + 6, we get f(-3) = -2(-3)^2 - 7(-3) + 6, which works out to                                                    f(-3) = -2(9) + 21 + 6, or

                                                                                    f(-3) = -18 + 27 = 9

Thus, f(-3) = 9