Please help, I don't understand these exercises.

Answer:

Step-by-step explanation:

2d = 2 · d

10 = 2 · 5

2d - 10 = 2 · d - 2 · 5 = 2 · (d - 5)

Answer: the answer is 2 YW!!!

Step-by-step explanation:

Answer:

2

Step-by-step explanation:

Answer:

Step-by-step explanation:

Answer C

Step-by-step explanation:

Answer: £9.3 more

Step-by-step explanation:

Price for winter tickets: £18 + £18 + £14 = £50

Summer tickets pricing:

£18 + 20% = £21.6  

£14 + 15% = £16.1

Price for summer tickets: £21.6 + £21.6 + £16.1 = £59.3

Subtract winter tickets from summer tickets for difference:

£59.3 - £50 = £9.3

in a figure angle theta is the inscribed angle in the circle is half of the central angle 2theta that subtent the same arc on circle.

Answer:

the cost of the textbook was $173.14 before the tax was added

Step-by-step explanation:

6.75% of $185.67 is 0.0675 x $185.67 = $12.53

$12.53 is 6.75% of $185.67

sine $185.67 is the total AFTER we subtract the amount

$185.67 - $12.53 = $173.14

if we take £15837.77 to be the 100% and we increase it by 18.5%, that'll be 100% + 18.5% = 118.5%.

[tex]\begin{array}{ccll} \pounds&\%\\ \cline{1-2} 15837.77 & 100\\ x& 118.5 \end{array} \implies \cfrac{15837.77}{x}=\cfrac{100}{118.5} \implies (15837.77)(118.5)=100x \\\\\\ \cfrac{(15837.77)(118.5)}{100}=x\implies 18767.76\approx x[/tex]

Answer:

2.6 m

Step-by-step explanation:

The surface area for rectangular prisms is: S = 2lw + 2lh + 2wh, where l = length, w = width, h = height.

Substitute the known values into this equation: h = 5, l = 10, w = x, S = 178

178 = 2(10x) + 2(5 x 10) + 2 (5x)

Simplify!

178 = 20x + 100 + 10x

Subtract 100 from both sides and combine x's

78 = 30x

divide both sides by 30

x = 2.6 m

answer check: 2(10 x 2.6) + 2(5 x 10) + 2 (5 x 2.6) = 178 (true!)

Answer:

x^2 + 17x + 30

Step-by-step explanation:

Just multiply the components from first bracket to components of second bracket, then add like terms and rearrange to write numbers from highest exponents to lowest.

Answer:

Step-by-step explanation:

the area of a triangle is area= 1/2 x base x height. ( half multiply by base multiply by height)

so plug in 22 for area 22=1/2 x 4 x height

22/2=11

11 is the length

hope this helps.  

Answer:

  p = 9

Step-by-step explanation:

The distributive property can be used to factor the given expression.

__

  18n +54 = 18(n +3)

Matching this to the desired form, we see ...

  18(n +3) = 2p(n +3)

  2p = 18

  p = 9 . . . . . . . divide by 2

Answer: Hii <3

11/10 is your answer i believe

Step-by-step explanation:

Isolate the variable by dividing each side by factors that don't contain the variable.

hopefully this helps you !

- Matthew ~

Answer:

The value of x = 11/10 or 1.1

Step-by-step explanation:

5x+3/-2 =4

=> 5x -3/2 = 4

=> 5x = 4 + 3/2

=> 5x = (8+3)/2

=> 5x = 11/2

=> x = 11/10 or 1.1

Julia has the greater median

Julia also has the greater mean.

Averagely, Julia practiced for a greater amount of time each day.

Mean = sum of data points / number of data points.

Median = center/middle of the data distribution.

Mean for Julia = (20 + 20 + 30 + 60 + 60 + 60 + 70 + 70 + 100 + 100 + 100 + 115 + 115 + 115)/14 = 69.6

Mean for Hannah = (20 + 20 + 30 + 30 + 45 + 45 + 45 + 70 + 70 + 70 + 75 + 90 + 90 + 120)/14 = 58.6

Median for Julia = 70

Median for Hannah = (45 + 70)/2 = 57.5

Julia has the greater median and also has the greater mean.

Averagely, we can conclude that Julia practiced for a greater amount of time each day.

Learn more about the mean and median of a data on:

https://brainly.com/question/19243813

#SPJ1

Total money does the shop receive is  0.12 Pound

The ratio is defined as the comparison of two quantities of the same units that indicates how much of one quantity is present in the other quantity.

According to the question

A shop sells apples and oranges in the ratio 5:2

Let constant multiple of the ratio as a

Now,

Apples = 5a

Oranges = 2a

Total pieces of fruit sell = 35

i.e

5a + 2a = 35

7a = 35

a = 5

Therefore,

Apples = 5*5 = 25

Oranges = 2*5 = 10

Now ,

Shop sells apples at =  30p

Shop sells oranges at = 40p

Total money  the shop receive = 30 * 25 + 40 * 10

                                                    = 1150 p

Paisa to Indian rupee :               100p = ₹1

                                                    =  ₹11.50

Now, Indian rupee to pounds :

1 Indian Rupee equals 0.011 Pound (according to current market value)

₹11.50  is equal to 0.12 Pound

Hence, Total money does the shop receive is  0.12 Pound .

To know more about ratio here:

https://brainly.com/question/1504221

#SPJ2

The cylinder is a three-dimensional shape, and the base area of the cylinder is 12π square feet

The given parameters are:

The volume of a cylinder is calculated using:

Volume =  Base area * Height

So, we have:

216π = Base area * 18

Divide both sides by 18

Base area = 12π

Hence, the base area of the cylinder is 12π square feet

Read more about volume at:

https://brainly.com/question/1972490

#SPJ4

Answer:

12

Step-by-step explanation:

The probability that the total of the two numbers is more than 32 = [tex]\frac{2}{5}[/tex]

"Probability is a branch of mathematics which deals with finding out the likelihood of the occurrence of an event."

P(A) = n(A)/n(S)

where,  n(A) is the number of favorable outcomes, n(S) is the total number of events in the sample space.

[tex]^nC_r=\frac{n!}{r!(n-r)!}[/tex]

For given question,

We have been given five number cards.

Two of the five cards are picked at random.

Using combination formula the possible number of outcomes would be,

[tex]^5C_2\\\\=\frac{5!}{2!(5-2)!} \\\\=10[/tex]

So, n(S) = 10

Let event A : the total of the two numbers is more than 32

A = {(19, 14), (19, 22), (13, 22), (14, 22)}

So, n(A) = 4

Using the formula for probability,

[tex]\Rightarrow P(A)=\frac{n(A)}{n(S)} \\\\\Rightarrow P(A)=\frac{4}{10}\\\\\Rightarrow P(A)=\frac{2}{5}[/tex]

Therefore, the probability that the total of the two numbers is more than 32 = [tex]\frac{2}{5}[/tex]

Learn more about probability here:

brainly.com/question/11234923

#SPJ2

[tex]\textit{arc's length}\\\\s=\cfrac{\theta \pi r}{180}~~\begin{cases}r=radius\\\theta =\stackrel{degrees}{angle}\\[-0.5em]\hrulefill\\r=13.5\\\theta =120\end{cases}\implies \begin{array}{llll}s=\cfrac{(120)\pi (13.5)}{180}\implies s=9\pi \\\\\\s\approx 28.27\end{array}[/tex]

The statement about the hyperbola is true is D. the point (−2, 0) is a vertex.

It should be noted that a hyperbola simply means an open curve that has two branches and usually symmetric.

In this case, the statement about the hyperbola is true is that the point (−2, 0) is a vertex.

Learn more about hyperbola on:

https://brainly.com/question/3351710

#SPJ4

Answer:

sin70=13/x

[tex] \sin(70) \times x = 13[/tex]

[tex]x = 13 \times \sin(70) [/tex]

[tex] x = 13 \div 0.9397[/tex]

13.8

Answer:

Thus, in total, there are 24=16 ways to answer the four questions. Only one of these 16 sequences is correct. Assuming each of these 16 sequences is equally likely to occur (as would result from random guessing), the probability that all four questions are answered correctly is 1/16.

Answer:

jklgyukdj

Step-by-step explanation:

Answer: B. 9

Step-by-step explanation:

First, find the median of the data set. This set has an even number of points, so find the average between the two middle points: 18 and 19. 18+19 = 37. 37/2 = 18.5. The median is 18.5.

Now, to find the lower quartile, find the median of the lower half of the data set {11, 12, 14, 15, 18}. The number in the middle is 14. The lower quartile is 14.

To find the upper quartile, find the median of the upper half of the data set {19, 21, 23, 25, 55}. The number in the middle is 23. The upper quartile is 23.

To find the interquartile range, subtract the lower quartile from the upper quartile. 23-14 = 9. The interquartile range is 9.

Answer:

website na para sa di marunong mag math haha cutting study value of c is vintamin C = Glox C

Answer:

(2x+1)(1) = 84. 2x+1= 84. 2x = 83.

Step-by-step explanation:

Hello! :D

_________________________________

ANSWER :

SOLUTION :

You will need x.

__________________________________

The constant should be added to form a perfect square trinomial will be 1/4. Then the correct option is D.

It's a polynomial with a value of zero. There exist polynomials of variable power 2, 1, and 0 terms. A quadratic equation is an equation with one statement in which the degree of the parameter is a maximum of 2.

The expression is x² + x.

Then the constant should be added to form a perfect square trinomial.

Then the constant will be

The square of the half of the coefficient of the variable x is to be added to make a perfect square.

Then the constant will be 1/4.

Then the perfect square will be

[tex]\rm \rightarrow x^2 + x + \dfrac{1}{4}\\\\\\\rightarrow x^2 + 2 \times \dfrac{1}{2} x + \left (\dfrac{1}{2} \right )^2\\\\\\\rightarrow \left (x + \dfrac{1}{2} \right)^2[/tex]

More about the quadratic equation link is given below.

https://brainly.com/question/2263981

#SPJ1