True or False: If k = 4, then 3k + 5 = 39. Explain your reasoning for your answer.

Answer:

[tex] \frac{3}{4} n = 12[/tex]

Step-by-step explanation:

let the number be n :

[tex] \frac{3}{4} \: of \: n = 12 \\ \\ \frac{3}{4} n = 12[/tex]

further more:

[tex]3n = 12 \times 4 \\ n = \frac{12 \times 4}{3} \\ \\ n = 4 \times 4 \\ n = 16[/tex]

Answer:

3x4=12

Step-by-step explanation:

Answer:

-m + 7n - 2

Step-by-step explanation:

[tex](-2m-3n-1)+(5m+3n+4)+(-4m+7n-5)=\\-2m-3n-1+5m+3n+4-4m+7n-5=\\-2m+5m-4m-3n+3n+7n-1+4-5=\\-m+7n-2[/tex]

207$ - 15$ = 192$

192$ : 8 = 24$

Answer: Each book costed 24$.

Answer:

62

Step-by-step explanation:

you make the largest and smallest 2 digit numbers which are 24 and 68. then you find the difference which gives you 62

Using operations of sum/subtraction with fractions, it is found that he must gain [tex]\frac{1}{5}[/tex] of miles of elevation on the fourth day.

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[tex]-\frac{1}{4} + \frac{1}{2} - \frac{1}{5} + x = \frac{1}{4}[/tex]

[tex]\frac{-5 + 10 - 4 + 20x}{20} = \frac{1}{4}[/tex]

[tex]\frac{1 + 20x}{20} = \frac{1}{4}[/tex]

[tex]1 + 20x = 5[/tex]

[tex]20x = 4[/tex]

[tex]x = \frac{4}{20} = \frac{1}{5}[/tex]

He must gain [tex]\frac{1}{5}[/tex] of miles of elevation on the fourth day.

A similar problem is given at https://brainly.com/question/16521826

Answer:

31.4cm

Step-by-step explanation:

Use 2 pie r

I suppose K is the matrix

[tex]K = \begin{bmatrix}14 & -13 & 0 \\ 3 & 8 & -1 \\ -10 & -2 & 5\end{bmatrix}[/tex]

To compute det(K), you can use a simple cofactor expansion along the first row:

[tex]\det(K) = 14\times\det\begin{bmatrix}8 & -1 \\-2 & 5\end{bmatrix} - (-13)\times\det\begin{bmatrix}3 & -1 \\ -10 & 5\end{bmatrix} + 0\times\det\begin{bmatrix}3 & 8 \\ -10 & -2\end{bmatrix} \\\\ \det(K) = 14\times(8\times5-(-1)\times(-2)) + 13\times(3\times5-(-1)\times(-10)) + 0 \\\\ \det(K) = 14\times38 + 13\times5 = \boxed{597}[/tex]

Answer:

38,4000 and 25,150

Step-by-step explanation:

add colum 1 and 3 together on each side for each different car and divide them by the percentage

Answer:

l-12 - (-15)l = 3. hope this helps

Step-by-step explanation:

- Zombie

Answer:

274.5 / 2.85 = 96 . 31 is the answer....

Step-by-step explanation:

96.31578947 will be the full answer of the following question.

Answer:

Therefore, p is equivalent to -1/6 or -0.16666

Answer:

[tex]slope = \frac{y2 - y1}{x2- x1} \\ = \frac{9 - 16}{9 - 1} \\ = \frac{ - 7}{8} \\ slope = \frac{ - 7}{8} \\ thank \: you[/tex]

Answer:

y = 3-8 =-5

Step-by-step explanation:

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hi <3

you have to isolate the variable 'y'

to do that, just subtract 8 from both sides of the equation

thus, y = 3 - 8

giving you an answer of y = -5

hope this helps :)

Answer:

59÷4

you will find the answer

Answer:

9+x = 2y+14

Step-by-step explanation:

It says 9 plus a number, so plug in x for 'a number', and it says 'is twice a number plus 14'. Plug in '=' for is another variable for 'a number', and last but not least, just put +14 for plus 14

Answer:

9 is the constant

Step-by-step explanation:

-7 is the coeffiecent (the number multipled/divided by the variable)

x is the variable (unknown number)

+ 9 is the constant (a number that is NOT multiplyed/divided by the varaible)

Answer: x < 2

Step-by-step explanation:

Given expression

2 (8x - 4) - 2x < 4x + 12

Expand parentheses and apply the distributive property

16x - 8 - 2x < 4x + 12

Combine like terms

(16x - 2x) - 8 < 4x + 12

14x - 8 < 4x + 12

Add 8 on both sides

14x - 8 + 8 < 4x + 12 + 8

14x < 4x + 20

Subtract 4x on both sides

14x - 4x < 4x + 20 - 4x

10x < 20

Divide 10 on both sides

10x / 10 < 20 / 10

[tex]\boxed{x<2}[/tex]

Hope this helps!! :)

Please let me know if you have any questions

[tex] \fbox { \fbox{Solution}}[/tex]

[tex]2(8x-4)-2x < 4x+12[/tex]

[tex]16x-8-2x < 4x+12[/tex]

[tex]16x-2x-8 < 4x+12[/tex]

[tex]= 14x-8 < 4x+12[/tex]

[tex]= 14x-8+8 < 4x+12+8[/tex]

[tex]= 14x < 4x+20[/tex]

[tex]= 14x-4x < 20[/tex]

[tex]= 10x < 20[/tex]

[tex] = 10x < 20 \\ \\ = x < \frac{20}{10} \\ \\ = x < \cancel \frac{20}{10} \\ \\ = x < 2[/tex]

Answer:

Angle d = 90 degrees

Angle e = 48 degrees

Angle f = 180 - 48 = 132 degrees

Step-by-step explanation:

Answer:

The choose C. 24x+6y

Step-by-step explanation:

[tex]3(8x + 2y) = 24x + 6y[/tex]

I hope I helped you^_^

Answer:

(y – 1) = -⅔(x + 6)

Step-by-step explanation:

Given:

To find the point slope form, first use the formula:

(y – y_1) = m(x – x_1).

Where (x_1, y_1) is a given point, and m is the slope of the line.

The next and final step is to substitute the given information into the equation like this.

(y – y_1) = m(x – x_1) →

(y – (1)) = (-⅔)(x – (-6)).

Then simplify:

(y – (1)) = (-⅔)(x – (-6)) → (y – 1) = -⅔(x + 6).

You can also verify that the information is correct if you replace the coordinate for x and y values, so that the equation is true like 0 = 0, or where both sides are the same.

(-6, 1) → (y – 1) = -⅔(x + 6) →

(1 – 1) = -⅔(-6 + 6) → 0 = 0 ✓

Answer:

[tex] \frac{3}{2} + \frac{8}{6} = 31 \\ \frac{9 + 8}{6} = 31 \\ \frac{17}{6} = 31 \\ the \: equation \: is \: incorrect[/tex]

Answer:

11x and 8y

Step-by-step explanation:

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First, let's create two variables to express the girls' ages.

x=age of girl 1

y = age of girl 2

Now, let's create our expressions

x+y = 24

x-y=6

Let's solve by elimination

2x = 30

Divide both sides by 2

x=15

We can plug 15 in for x into one of our expressions

15 + y = 24

Subtract both sides by 15

y = 9

The older girl is 15 years old and the younger girl is 9 years old.

Answer:

hope it helps you.........

Answer:

72

Step-by-step explanation:

9² - √81

= (9 × 9) - √9 × 9

= 81 - √9²

= 81 - 9

= 72

9514 1404 393

Answer:

  (A)  1 only

Step-by-step explanation:

Factor numerator and denominator and see what cancels.

  [tex]f(x)=\dfrac{2x^2+14x-16}{x^2-9x+8}=\dfrac{2(x-1)(x+8)}{(x-1)(x-8)}=\dfrac{x-1}{x-1}\cdot\dfrac{2(x+8)}{x-8}\\\\f(x)=\dfrac{2x+16}{x-8}\qquad x\ne1[/tex]

The factor of x-1 in the original denominator means the expression is undefined at x=1. The reduced expression is defined there, so the discontinuity at x=1 could be removed by defining f(1) = -18/7.

There is a removable discontinuity at x=1 only. The discontinuity at x=8 is a vertical asymptote where the function changes sign. It cannot be removed by defining a value for the function there.

Answer:

Step-by-step explanation:

Let's take the blank as "x"

[tex]3 = 2 \frac{1}{6} + x[/tex]

[tex] = > x = 3 - 2 \frac{1}{6} [/tex]

[tex] = > x = 3 - \frac{13}{6} [/tex]

[tex] = > x = \frac{18 - 13}{6} [/tex]

[tex] = > x = \frac{5}{6} (ans)[/tex]

Hence,

In the blank there will be 5/6

Answer:

5/6

Step-by-step explanation:

The answer is 5/6. To get this, ignore the 2 for now, and focus on 1/6. We want to make 1/6 a whole number, because 1 + 5 is 6 (if we make 1/6 a whole number it will be 1). So subtract 1 from 6, and you get 5. 5/6 + 1/6 = 6/6 or 1. Now you can bring the 2 back, and you have 3 = 2 1/6 + 5/6.

Hope this helped!

Answer:

Given that <ACB is congruent to <ABC we can infer that the triangle formed is an isosceles triangle. If B and C are both congruent and the distance from c and x and b and y are also congruent than the angles are congruent.

Step-by-step explanation:

Answer:

x=20°

Step-by-step explanation:

sum of angles of a triangle=180°

76+44+3x=180

120+3x=180

3x=180-120=60

x=60/3=20

Answer:

[tex]\displaystyle (f - g)(x) = -x^2 + 2x + 8[/tex]

Step-by-step explanation:

We are given the two functions:

[tex]\displaystyle f(x) = 2x + 1 \text{ and } g(x) = x^2 - 7[/tex]

And we want to find:

[tex]\displaystyle (f- g)(x)[/tex]

Recall that:

[tex]\displaystyle (f - g)(x) = f(x) - g(x)[/tex]

Substitute and simplify:

[tex]\displaystyle \begin{aligned}(f-g)(x) &= f(x) - g(x) \\ \\ &= (2x + 1) - (x^2 - 7) \\ \\ &= (2x +1 )+ (-x^2 + 7) \\ \\ &= -x^2 +2x + 8\end{aligned}[/tex]

In conclusion:

[tex]\displaystyle (f - g)(x) = -x^2 + 2x + 8[/tex]

Answer:

[tex]→(f - g)(x) \\ = f(x) - g(x) \\ = (2x + 1) - ( {x}^{2} - 7) \\ = 2x + 1 - {x}^{2} + 7 \\ = \boxed{ - {x}^{2} + 2x + 8}✓[/tex]

Option C is correct. Whether a two-digit number is always less than a three-digit number​ depends on the first digit in the number.

A  number can be a combination of a positive and negative integer. For example,

We can see from the numbers that 23 (a two digits number ) is greater than -230 (a 3 digits number) which falsifies the claim that a two-digit number is always less than a three-digit number.

The veracity of the claim all depends on the first digits of the number (whether it is a positive or negative integer)

Learn more here: https://brainly.com/question/4233434