Pls help I’m really confused on this last question

Answer:

Try -17/22

Step-by-step explanation:

Multiply the numbers

r-1 • 5/22 =-1

Which is just

r- 5/22 =-1

Add 5/22 to both sides of the equation

r- 5/22 + 5/22 = -1 + 5/22

which equals r= -17/22

Answer:

Step-by-step explanation:

14

SA = 2 pi r * x + 2* pi r^2

r = 6

SA = 2 pi * 6 * x + 2 * pi * 6^2

SA = 12 pi * x + 72 pi

Volume = pi r^2 * x

Volume = pi 36 x

Now volume and surface area are made to be equal so

Volume = Surface area

36 pi x = 12 pi x + 72 pi                 Divide through by pi

36x = 12x + 72                               Subtract 12x from both sides

24x = 72                                        Divide by 24

x =  72/24

x = 3

15 is done exactly the same way. You can try it yourself. Only the numbers are different. Use 10 for the radius. You should get x = 2.5

Answer:2

Step-by-step explanation:14/2 = 7 - 5 =2

First, let's define our variable

x = brother's money

Now, let's create an equation to model the problem.

$14 = 2x - $5

Add 5 to both sides.

$19 = 2x

Divide both sides by 2

$9.5 = x

His brother has $9.5

Answer:

$38

Step-by-step explanation:

6 cans is $12

1 can is 12/6 = $2

$2 x 19 = $38

Alternative way:

19/6 = 3 1/6

3 1/6 * 12 = 36 + 2 = 38

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Answer:

this can be simplified

12v + 10v + 14 = 80

22v + 14 = 80

22v = 66

v = 3

Answer:

v = 3

Step-by-step explanation:

12v + 10v = 22v

22v + 14 = 80

Subtract 14 from both sides.

80 - 14 = 66

22v = 66

now divide both sides by 22

66/22 = 3

v = 3

Answer:

10, 12, 14

Step-by-step explanation:

Hi there!

Let x be equal to the smallest integer.

Let (x+2) be equal to the next even integer.

Let (x+4) be equal to the largest even integer out of the three.

We're given:

⇒ smallest number + (2 × middle number) = 20 + largest number

Construct an equation:

[tex]x+2(x+2)=20+(x+4)[/tex]

Combine like terms:

[tex]x+2x+4=20+x+4\\3x+4=x+24\\2x=20\\x=10[/tex]

Therefore, the smallest integer is 10, making the next two even integers 12 and 14.

I hope this helps!

Hi there!  

»»————-　★　————-««

I believe your answer is:  

17

»»————-　★　————-««  

Here’s why:  

⸻⸻⸻⸻

[tex]\boxed{\text{Solving for 'x'...}}\\\\2x + 12 = 3x - 5\\--------------\\\rightarrow 2x + 12 - 12 = 3x - 5 - 12\\\\\rightarrow 2x = 3x -17 \\\\\rightarrow2x -3x = 3x-3x - 17\\\\\rightarrow -x = - 17\\\\\rightarrow \frac{-x=-17}{-1} \\\\\rightarrow \boxed{x = 17}[/tex]

⸻⸻⸻⸻

»»————-　★　————-««  

Hope this helps you. I apologize if it’s incorrect.  

Answer: true

Step-by-step explanation:

Answer:

12.5

Step-by-step explanation:

Answer:

-15

-12

10

|-12|

|-26|

Step-by-step explanation:

Basically, the absolute value turns the -'s into +'s so the |-26| turns into a 26. Thus, when you convert the two numbers out of the absolute value, it's easy then on.

Answer:

-15, -12, |10|, |-12|, |-26|

Step-by-step explanation:

The bars around three of the numbers are absolute value bars. The absolute value of a number is its distance from 0. Since distance cannot be negative, a number's absolute value will just be that number but positive. Therefore, the largest number listed is |-26| because it equals 26. Then, -15 is the smallest number represented.

Answer: 11

Step-by-step explanation:

Complementary angles mean both angles sum 90°, then:

(3x + 2)° + 5x° = 90°

3x° + 2° + 5x° = 90°

8x° + 2° = 90°

8x° = 88°

x = 11

Confirmation:

(3x + 2)°                                        5x°

(3(11) + 2)°                                      5(11)x°

(33 + 2)°                                         55x°

35°

                      35° + 55° = 90°

Answer:

If the side of a square is a, then:

So the area is:

The perimeter is:

Answer:

Let the no. be x.

Therefore,

PERIMETER 1=4x-3

PERIMETER 2=2x+5

Since,

Both PERIMETER are equal .

Therefore,

4x-3=2x+5

2x=8,

x=4

PERIMETER 2 =2×4+5

=13

The answer will be ;

a) The equation to find the number will be 4x-3 = 2x +5

b) After solving the equation we get value of number equal to 4.

c) Perimeter of figure 2 will be equal to 13.

It has been given that there are two figures. Perimeter of figure 1 is four times a number minus three whereas, perimeter of figure 2 is two times the same number plus five.

We have to solve given subparts of the question based on data given.

What is the perimeter ?

Perimeter is the distance around the edge of a shape.

Let the number be x.

Perimeter of figure 1 will be equal to 4x - 3

Perimeter of figure 2 will be equal to 2x + 5

a) As per the question perimeter of both the figures are equal.

   So, the equation will be ,

   4x-3 = 2x+5

b)

∵ 4x -3 = 2x + 5

   4x-2x = 3 + 5

   2x = 8

    x = 4

Thus the number is 4.

c) Perimeter of figure 2 = 2x + 5

                                       = (2 × 4 ) + 5

                                       = 13

Thus, the perimeter of figure 2 will be equal to 13.

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Answer:

the x-values are the inputs

the y-values are the outputs

the missing value in the table for x = -1 is y = 6

Step-by-step explanation:

Answer:

Area of triangle is

Area= 1/2 × base × height

A = 1/2 × 35 × 16

A = 280

Area of a triangle is :

[tex] \boxed{ \boxed{ \frac{1}{2} \times base \times height}}[/tex]

let's solve :

[tex] \hookrightarrow \: \dfrac{1}{2} \times 35 \times 16[/tex]

[tex] \hookrightarrow \: 35 \times 8[/tex]

[tex] \hookrightarrow \: 280 \: \: {cm}^{2} [/tex]

Answer:

[tex]\frac{1015}{99}[/tex]

Step-by-step explanation:

x = 10.2525252525....

100x = 1025.2525252525....

    x = 10.2525252525....

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

99x = 1015

x=1015/99

Answer:

D. 4

Step-by-step explanation:

Without actually solving the equation, recall that for [tex]a=|b|[/tex], there are two cases:

[tex]\begin{cases}a=b, \\a=-b\end{cases}[/tex]

In the given equation [tex]|x-2|^{10x^2-1}=|x-2|^{3x}[/tex], there are two pairs of absolute value symbols.

Since each has two cases, there must be a total of [tex]2\cdot 2=\boxed{4}[/tex] different equations created.

All four cases are:

[tex]\begin{cases}(x-2)^{10x^2-1}=(x-2)^{3x},\\(-x+2)^{10x^2-1}=(x-2)^{3x},\\(x-2)^{10x^2-1}=(-x+2)^{3x},\\(-x+2)^{10x^2-1}=(-x+2)^{3x}\end{cases}[/tex]

Exponents differ, hence clearly there are four possible solutions to this equation.

You can solve for all four values of [tex]x[/tex] by taking the log of both sides and using a bit of algebra to verify you have four solutions.

Answer:

Assuming the number is 9.094 the answer is 9.094 If it is whole number it is 9000

Step-by-step explanation:

The tens place is             .0

The Hundreds place is   .09

The thousands place is   .094

if you are talking about whole numbers: it's 9000

When rounding, 5 and above it is rounded up, and 4 and below is rounded down.

So for this problem you only need to look one place to the right.

9094 Because that number is 0 that means you round down.

because

Step-by-step explanation:

the cube of 2 is 8 and the cube of 3 is 27 and when u take out the bracket the answer comes

Answer:

Step-by-step explanation:

-4 - (-3)

= -4 + 3

= -1

Answer:

(-1)

Step-by-step explanation:

-4- (-3)

-4+3

(-1)

Hope you got it

If you have any question just ask me

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First, [tex]y=7x[/tex] and when we plug in the point we get [tex]-8=7a\implies a=-\frac{8}{7}[/tex].

Hope this helps :)

Answer:

(b) 3 times the other pls write how u did it pls and thank u​

Step-by-step explanation:

Answer:

hi

Step-by-step explanation:

Answer:0.7

Step-by-step explanation:trust me

Answer: The answer is  58.6

Step-by-step explanation:

After figuring out this equation by the nearest 10th I've come up with the answer  58.6

Answer:

[tex]thank \: you[/tex]

Answer:

each child would have 50

Answer:

50 chocolates

Step-by-step explanation:

No of Chocolates = 750

No of student. = 15

One student get = 750 / 15

= 50

Answer:

[tex]x \ge3.5[/tex]

Step-by-step explanation:

First, write the given in the form of a mathematical equation rather than words. I'll call the mystery number given in the question [tex]x[/tex]:

[tex]\frac{5*7}{x} \leq 10[/tex]

Simplify:

[tex]\frac{35}{x} \leq 10[/tex]

Solve for x:

[tex]\frac{35}{x} *x\leq 10*x[/tex]

Simplify the fraction:

[tex]35\leq 10x[/tex]

Divide by 10 to isolate x:

[tex]\frac{35}{10} \leq x[/tex]

Flip the equation around to make it easier to read:

[tex]x \ge \frac{35}{10}[/tex]

Simplify the fraction:

[tex]x \ge \frac{7}{2}[/tex] or [tex]x \ge3.5[/tex]

Answer:

9 test

Step-by-step explanation:

There should be 9 administrators chosen.

A proportion is a comparison of two numbers that each represent the parts of a whole.

Given that, A supervisor wants to know the average number of hours worked by employees in a factory. There are 18 managers, 240 labourers, and 54 administrators. Three managers are chosen to participate in the survey.

Since, the manager chosen 3 out of 18 managers, hence, the proportion is 1 to 6 persons,

Therefore, when he is choosing administrators, 54/6 = 9

Hence, there should be 9 administrators chosen.

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