Can someone please help me with this??

Answer:

the answer is 12

Step-by-step explanation:

d=2r=2*6.2=12.4

Answer:

3^x-1×27^x+1

___________

81^x

81^x+x-1+1

_________

81^x

81^2x

_____

81^x

81^2x-1x

81^1x

Answer:

$252.8

Step-by-step explanation:

Total expenditure

63.20 = 40%

y = 100%

40y = 6320

Divide both sides by 40

y = 158

His expenditure is $158.00

Expenditure is 5/8 of salary

Remaining amount = 3/8

5 = 158

3 = y

474 = 5y

Divide both sides by 5

y = 94.8

Therefore 3/8 = 94.8

Salary = expenditure + remaining

S = 158 + 94.8

S = 252.8

Therefore his salary is $ 252.80

After solving the equation, the number of hours obtained is that after 2 hours, the cost ends up being the same for either artist.

Mathematical expressions with two algebraic symbols on either side of the equal (=) sign are called equations.

This relationship is illustrated by the left and right expressions being equal. The left-hand side equals the right-hand side is a basic, straightforward equation.

As per the given information in the question,

Booking fee of Martha = $10

Additional hourly charge of Martha = $40

Then, the equation will be,

y = $10 + $40x            (i)

Here, y is the total cost and x is the number of hours.

Booking fee of Jackie = $20

Additional hourly charge of Jackie = $35

Then, the equation for this will be,

y = $20 + $35x           (ii)

Here, y is the total cost and x is the number of hours.

Then, depending on the length of the show, the cost could end up being the same for either artist.

So,

From equations (i) and (ii)

$20 + $35x =  $10 + $40x  

20 - 10 = 40x - 35x

5x = 10

x = 2 hours

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Solution:

Given the data below:

To evaluate how many more employees worked at BIT Labs than at Boxerville Hardware, we have

Where

Thus, we have

The correct option is D

Answer:

I think it’s a

Step-by-step explanation:

Answer:

please don't waste your points I request you...

Answer:

1711

Step-by-step explanation:

\(4\cdot(14+8)^2-9\cdot(9-4)^2\\=4\cdot(22)^2-9\cdot(5)^2\\=4(484)-9(25)\\=1936-225\\=1711\)

Make sure to follow order of operations!

Answer:

40%

Step-by-step explanation:

Answer:

32%

Step-by-step explanation:

8 of 25=32%

The mixed fraction and fraction expression  1 ⁵/₆ - 3/4 in the simplest form will be 13/12.

Algebra is the study of abstract symbols, while logic is the manipulation of all those ideas.

The acronym PEMDAS stands for Parenthesis, Exponent, Multiplication, Division, Addition, and Subtraction. This approach is used to answer the problem correctly and completely.

The expression is given below.

⇒ 1 ⁵/₆ - 3/4

Convert the mixed fraction number into a fraction number. Then we have

⇒ 1 ⁵/₆ - 3/4

⇒ 11/6 - 3/4

⇒ (22 - 9) / 12

⇒ 13 / 12

The mixed fraction and fraction expression  1 ⁵/₆ - 3/4 in the simplest form will be 13/12.

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Answer:

3/8, 7/12, 7/10

Step-by-step explanation:

3/8 = .375

7/10=.70

7/12=.583

Answer:

3/8      7/12 and 7/10

Step-by-step explanation:

i looked it up

================================================

Work Shown:

A = old price = 320

B = new price = 400

C = percent change

C = [ (B-A)/A ] * 100%

C = [ (400-320)/320 ] * 100%

C = (80/320)*100%

C = 0.25*100%

C = 25%

The positive C value indicates a percent increase.

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

A slightly alternative method:

A = old price = 320

B = new price = 400

C = change in price

C = B-A

C = 400-320

C = 80 is the price increase

D = percent change

D = (C/A)*100%

D = (80/320)*100%

D = 0.25*100%

D = 25%

We get the same result as before.

Answer:

Please attach a photo to this so I can better answer your question

Answer:

q=4

p=2

Step-by-step explanation:

3p+2q=14

10p+6q=44

10(3p+2q=14)

3(10p+6q=44)

30p+20q=140-

30p+18q=132

2q=8

2q/2=8/2

q=4

3p+2*4=14

3p+8=14

3p=14-8

3p/3=6/3

p=2

hope this helps

Answer:

\(p=2\\q=4\)

Step-by-step explanation:

One is given the following system of equations,

\(3p + 4q = 22\\\\10p + 12q = 68\)

The fastest method to solve a system of equations is the method of elimination. This process is manipulating one of the equations, by multiplying or diving it by a value, such that one of the coefficients variables in the equation is the additive inverse of the like term in the other equation. That way, when one adds the equations, one of the variables cancels out. Then one can solve for the other term. Finally, one can back sovle by substituting the value of the solved variable into one of the equations and simplifying to find the value of the other variable.

\(3p + 4q = 22\\\\10p + 12q = 68\)

Manipulate the first equation so that the variable (q) cancels

\((3p + 4q = 22) *(-3)\\\\10p + 12q = 68\)

\(-9p + -12q = -66\\\\10p + 12q = 68\)

Add the equations,

\(-9p + -12q = -66\\\\10p + 12q = 68\)

\((10p-9p)+(-12q+12q)=(-66+68)\)

Simplify,

\((10p-9p)+(-12q+12q)=(-66+68)\)

\(p=2\)

Backsovle for the variable (p). Substitute the values of (p) into one of the original equations. Then simplify and use inverse operations to solve for the variable (q).

\(3p+4q=22\)

Substitute,

\(3(2)+4q=22\)

Simplify,

\(3(2)+4q=22\)

\(6+4q=22\)

Inverse operations,

\(6+4q=22\)

\(4q=16\\q=4\)

Answer:

-9 degrees

abcdefghijklmnopqrstuvwxyz

Answer:

x=40

Step-by-step explanation:

2−3=77

2−3+3=77+3

2=77+3

2x=80

2x/2=80/2

x=80/2

x=40

The solution to the given expression (x + 20 - 1) when x = 9 is: A. 28.

An expression can be defined as a mathematical equation which is used to show the relationship existing between two or more variables and numerical quantities.

In this exercise, you're required to evaluate the given expression and determine its solution. Therefore, we would evaluate the given expression  as follows:

x + 20 - 1

Substituting the value of x into the given expression, we have:

Expression = 9 + 20 - 1

Expression = 29 - 1

Expression = 28.

In conclusion, we can reasonably and logically deduce that 28 is the  solution to this expression (x + 20 - 1).

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Answer:

a) 28

Step-by-step explanation:

Now we have to,

→ evaluate the expression.

The expression is,

→ x + 20 - 1

Solving the expression,

→ x + 20 - 1

→ 9 + 20 - 1

→ 9 + 19

→ 28

Hence, solution is 28.

Answer:

5 shipments had at least 10 broken tiles but less than 20 broken tiles.

Let's use pythagorean theorem

x = 25 cm

The perimeter of the given shape as represented in the task content is; 29 cm.

It follows from the task content that the perimeter of the given shape on the centimeter grid as required is to be determined.

Since each grid line has 1cm as it's length;

The perimeter of the shape is the sum of all side lengths of the shape;

Perimeter, P = 6+2+3+2+2+1+3+2+2+2+2+1

P = 29 cm

Hence, the perimeter of the shape is; 29 cm.

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Answer:

The formula is C=5/9(F-32).

sorry i dont know i am so sorry

Answer:

( − ∞ , ∞ ) hope i help

Step-by-step explanation:

First, solve each inequality. I'll solve the first one first.

7 ≥ 2 x − 5

12 ≥ 2 x

6 ≥ x

Therefore, x could be any number less than or equal to 6. In interval notation, this looks like:

( − ∞ , 6 ]

The parenthesis means that the lower end is not a solution, but every number above it is. (In this case, the lower end is infinity, so a parenthesis must be used, since infinity is not a real number and so it cannot be a solution.) The bracket means that the upper end is a solution. In this case, it indicates that not only could  

x

be any number less than 6, but it could also be 6.

Let's try the second example:

3 x − 2 4 > 4

3 x − 2 > 16    3 x > 18 x > 6

Therefore, x could be any number greater than 6, but x couldn't be 6, since that would make the two sides of the inequality equal. In interval notation, this looks like:

( 6 , ∞ )  

The parentheses mean that neither end of this range is included in the solution set. In this case, it indicates that neither 6 nor infinity are solutions, but every number in between 6 and infinity is a solution (that is, every real number greater than 6 is a solution).

Now, the problem used the word "OR", meaning that either of these equations could be true. That means that either  x  is on the interval  ( − ∞ , 6 ] or the interval  ( 6 , ∞ )

. In other words,  x

is either less than or equal to 6, or it is greater than 6. When you combine these two statements, it becomes clear that  

x

could be any real number, since no matter what number  

x

is, it will fall in one of these intervals. The interval "all real numbers" is written like this:

( − ∞ , ∞ )

Answer:

7.5%

Step-by-step explanation:

Complete Question:

There are 750 spectator in the stadium of which 420 are women and the rest are men. What percent of the spectators are women?

Answer:

Percentage = 56%

Step-by-step explanation:

Given the following data;

Total number of people = 750

Number of women = 420

To find the percentage of women;

First of all, we would determine the number of male spectators (men);

Number of men = Total number of people - Number of women

Number of men = 750 - 420

Number of men = 330

Next, we find the percentage of women;

\( Percentage = \frac {420}{750} * 100 \)

\( Percentage = \frac {42}{75} * 100 \)

\( Percentage = 0.56 * 100 \)

Percentage = 56%

Therefore, the percentage of the spectators that are women is 56%.

Answer:

33 bags

Step-by-step explanation:

she has 4.5 ft³

she needs 54 ft³

she must get an additional

54 ft³ - 4.5 ft³ = 49.5 ft³

each bag has 1.5 ft³

(49.5 ft³)/(1.5 ft³) = 33

Answer: 33 bags

Hence, the arrangements to the quadratic equation  (3x-1)(x-2) = 5x + 2 are x = and x = 4.

To unravel the quadratic equation  (3x-1)(x-2) = 5x + 2, let's to begin with grow the cleared out side of the equation:

(3x - 1)(x - 2) = 5x + 2

Growing the condition:

3x^2 - 6x - x + 2 = 5x + 2

Streamlining the condition:

3x^2 - 7x + 2 = 5x + 2

Another, let's move all terms to one side of the condition:

3x^2 - 7x - 5x + 2 - 2 =

Combining like terms:

3x^2 - 12x =

Presently, we have a quadratic condition in standard shape: ax^2 + bx + c = 0, where a = 3, b = -12, and c = 0.

To fathom the quadratic equation, able to calculate out the common calculate of x:

x(3x - 12) =

From this equation, we are able see that the esteem of x can be or unravel for 3x - 12 = 0:

3x - 12 =

Including 12 to both sides:

3x = 12

Isolating both sides by 3:

x = 4

Hence, the arrangements to the condition (3x-1)(x-2) = 5x + 2 are x = and x = 4.

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Answer:

ggggghhytyhhh

Step-by-step explanation:

ghdhb

The probability of surveying 100 randomly selected households and getting 4 or fewer tuned to 60 minutes is only 0.02%.

P(X <= 4) = P(X = 0) + P(X = 1) + P(X = 2) + P(X = 3) + P(X = 4)

P(X = k) = (100 choose k) * 0.078^k * (1 - 0.078)^(100-k)

P(X <= 4) = (100 choose 0) * 0.078^0 * (1 - 0.078)^(100-0) + (100 choose 1) * 0.078^1 * (1 - 0.078)^(100-1) + (100 choose 2) * 0.078^2 * (1 - 0.078)^(100-2) + (100 choose 3) * 0.078^3 * (1 - 0.078)^(100-3) + (100 choose 4) * 0.078^4 * (1 - 0.078)^(100-4)

Using a calculator or software, we can find that:

P(X <= 4) = 0.000203

This means that the probability is 0.02%.

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Charges for TV advertising on a TV show are based on the number of viewers, which is measured by the rating. The rating is the percentage of population of 110 million TV households.The CBS television show 60 minutes recently had a rating of 7.8, indicating that 7.8% of the household were tuned to that show.An advertiser conducts an independent survey of 100 households and finds that only 4 were tuned to 60 minutes. Assuming that the 7.8 rating is correct, find the probability of surveying 100 randomly selected households and getting 4 or fewer tuned to 60 minutes.Does the result suggest that the rating of 7.8 is too high?

pi is about 3.14, so pi squared is about 3.14 x 3.14.

   (do a little long multiplication)

   3.14 squared = 9.8596

Since 3.14 squared is less than 10, 3.14 itself is less than sqrt(10).

This means 3.14 is a little bit closer to zero (or to the left) of sqrt(10) on the number line.