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[tex] \longmapsto \: perimeter \: of \: rectangle = 2(l + b) \\ \\ \longmapsto2(8 + b) = 28 \\ \\ \longmapsto \: 8 + b = 14 \\ \\ \longmapsto \: b = 6cm[/tex]

Answer:

2.(-3,-2)

Step-by-step explanation:

Answer:

1

Step-by-step explanation:

Answer:

23.25

Step-by-step explanation:

multiply 15x1.55 and once you get your answer divide it by 15 and see if you start back with 1.55 or the number it gives you.

Answer:

3375

Step-by-step explanation:

The surface area formula for a cube is:

A = 6 a^2

We know what the area is so plug it into the equation:

1350 = 6 a^2

225 = a^2

a = 15

Now plug a = 15 into the equation for volume of a cube:

V = a^3

V = 15^3

V = 3375

Answer: the answer is overt and structured

Answer:

The answer is D. overt and unstructured

Step-by-step explanation:

I just took the quiz, hope this helps. Have an amazing day/night/afternoon!

Answer:

3.5

Step-by-step explanation:

Answer:

3.5

Step-by-step explanation:

just took the quiz

Answer:

Alan= £4.20, Connor= £2.50

Step-by-step explanation:

Please see the attached picture for full solution.

Answer:

5(3x+4)(x-2)

Step-by-step explanation:

first you factor out a five to make it 3x^2 - 2x - 8

then you split into (3x+?) and (x+?)

then using guess and check (this is not the best method but I use it) you get

(3x+4)(x-2) and then you bring the 5 so its 5(3x+4)(x-2)

Answer: 9x - 6y

Step-by-step explanation:------------------------

Answer:

3 people went to the movies. Equation: $6.25p+12=30.75

Step-by-step explanation:

To find your answer, subtract $12 immediately because it is one cost and not unknown. Then, divide the difference between $30.75 and $12 ($18.75) by $6.75. The quotient is the number of people went to see the movie. In the equation, solve for p.

Answer:

3 people went to the movies. Equation: $6.25p+12=30.75

Step-by-step explanation:

Answer:

-12x^2-8xy+12x-2y+y^2

Step-by-step explanation:

[tex](6x-y)(2x-y+2)\\=12x^2-6xy+12x-2xy+y^2-2y\\=12x^2+y^2-8xy+12x-2y[/tex]

Answer:

B. 19.1cm

Step-by-step explanation:

Perimeter of a square = 4 × length

Perimeter = 54cm

Perimeter of a square = 4 × length

54 = 4 × length

54 = 4l

Divide both sides by 4

l = 54 / 4

= 13.5cm

Find the length of a diagonal,

Diagonal = hypotenuse

Using Pythagoras theorem

Hypotenuse^2 = opposite^2 + adjacent^2

Opposite = adjacent in a square because of the equal length

Opposite = adjacent = 13.5cm

Hypotenuse^2 = opposite^2 + adjacent^2

= 13.5^2 + 13.5^2

= 182.25 + 182.25

Hypotenuse^2 = 364.5

Find the square root of both sides

√Hypotenuse^2 = √ 364.5

Hypotenuse = 19.09cm

To the nearest tenth = 19.1cm

B. 19.1cm

Answer:

  250 pounds

Step-by-step explanation:

Fill in the given information and solve for the remaining variable.

  700(1000) + 1200R = 1000000

  1200R = 300000 . . . . subtract 700,000

  R = 250 . . . . . . . . . . . . divide by 1200

250 pounds of Robusta beans should be in the mixture.

Answer:

Step-by-step explanation:

Buying price = 375

Mark up = 25%

Mark up value =  (25/100) * 375 = 93.75

Selling Price = buying price + markup value

Selling Price = 375 + 93.75

Selling Prince = 468.75

A quicker way (perhaps) is

Selling price = buying price (1 + 0.25)

Selling prince = 375*1.25 = 468.75

Answer:

-15x^2 +8x -1

Step-by-step explanation:

(3x – 1)(-5x + 1)=

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

-15x^2 +3x +5x -1 =

-15x^2 +8x -1

see my other articles for quiz and assignment in my site.

just copy and paste "learningandassignments diy4pro" to google search engine.

hope it helps.

Answer:

Trick question ;)

Step-by-step explanation:

The misdirection in this riddle is in the second half of the description, where unrelated amounts are added together and the listener assumes those amounts should add up to 30, and is then surprised when they do not ⁠— ⁠there is, in fact, no reason why the (10 ⁠− ⁠1) ⁠× ⁠3 ⁠ + ⁠2 ⁠ = ⁠29 sum should add up to 30.

The exact sum mentioned in the riddle is computed as:

SUM = $9 (payment by Guest 1) +

          $9 (payment by Guest 2) +

          $9 (payment by Guest 3) +

          $2 (money in bellhop's pocket)

The trick here is to realize that this is not a sum of the money that the three people paid originally, as that would need to include the money the clerk has ($25). This is instead a sum of a smaller amount the people could have paid ($9 × 3 people = $27), added with the additional money that the clerk would not have needed had they paid that smaller amount ($27 paid - $25 actual cost = $2). Another way to say this is, the $27 already includes the bellhop's tip. To add the $2 to the $27 would be to double-count it. So, the three guests' cost of the room, including the bellhop's tip, is $27. Each of the 3 guests has $1 in his pocket, totalling $3. When added to the $27 revised cost of the room (including tip to the bellhop), the total is $30.

To obtain a sum that totals to the original $30, every dollar must be accounted for, regardless of its location.

Thus, the sensible sum that we really desire is this one:

$30 = $1 (inside Guest pocket) +

        $1 (inside Guest pocket) +

        $1 (inside Guest pocket) +

        $2 (inside bellhop's pocket) +

        $25 (hotel cash register)

This sum does indeed come out to $30.

To further illustrate why the riddle's sum does not relate to the actual sum, we can alter the riddle so that the discount on the room is extremely large. Consider the riddle in this form:

Three people check into a hotel room. The clerk says the bill is $30, so each guest pays $10. Later the clerk realizes the bill should only be $10. To rectify this, he gives the bellhop $20 to return to the guests. On the way to the room, the bellhop realizes that he cannot divide the money equally. As the guests didn't know the total of the revised bill, the bellhop decides to just give each guest $6 and keep $2 as a tip for himself. Each guest got $6 back: so now each guest only paid $4; bringing the total paid to $12. The bellhop has $2. And $12 + $2 = $14 so, if the guests originally handed over $30, what happened to the remaining $16?

Now it is more obvious that the question is quite unreasonable. One cannot simply add a couple of payments together and expect them to total an original amount of circulated cash.

More economically, money is accounted by summing together all paid amounts (liabilities) with all money in one's possession (assets). That abstract formula holds regardless of the relative perspectives of the actors in this exchange.

The guests of the hotel paid $27, but also have $3 among their pockets at the story's end. Their assets are $3, and their liabilities are $27 ($30 = 27 + 3). Thus, the original total is accounted.

From the perspective of the hotel clerk, the hotel has $25 in assets and lost $5 in liabilities ($30 = 25 + 5).

From the perspective of the bellhop, his assets are $2, and his liabilities are $3 to guests and $25 to the register at the desk ($30 = 2 + 3 + 25).

To illustrate the issue through equations:

1) 10 + 10 + 10 = 30

2) 10 + 10 + 10 = 25 + 2 + 3

3) 10 + 10 + 10 - 3 = 25 + 2 + 3 - 3 (adding -3 to both sides of the equation to cancel out the +3 on the right side)

4) 10 - 1 + 10 - 1 + 10 - 1 = 25 + 2

5) 9 + 9 + 9 = 25 + 2 (obs: tip to bellhop has already been paid)

6) 27 = 27

How the riddle is deceptive comes in line 8:

7) 9 + 9 + 9 = 25 + 2

8) 9 + 9 + 9 + 2 = 25 (pushing +2 to the other side without inverting the sign)

9) 27 + 2 = 25

10) 29 != 25

How it should be:

7) 9 + 9 + 9 = 25 + 2

8) 9 + 9 + 9 -2 = 25 + 2 -2 (adding -2 to both sides of the equation to cancel the +2 on the right side, which means the bellhop returned the tip or gave a discount of $2)

9) 9 + 9 + 9 - 2 = 25

10) 27 - 2 = 25

11) 25 = 25

The puzzle should subtract the bellhop's tip from the $27 rather than add it.

Answer:

first box is 50

second box is 4:6:12

third box is 0.6:2.4

Hope this helps ♥️♥️♥️

Everyone make mistakes...

see the solution on the picture... and identify the answer...

Answer:

A rational number is any integer, fraction, terminating decimal, or repeating decimal. Therefore, -5 is rational.

This Question is Incomplete

Complete Question

Anand needs to hire a plumber. He's considering a plumber that charges an initial fee of $65 along with an

hourly rate of $28. The plumber only charges for a whole number of hours. Anand would like to spend no more than $250, and he wonders how many hours of work he can afford.

Let H represent the whole number of hours that the plumber works.

1) Which inequality describes this scenario?

Choose 1 answer:

A. 28 + 65H < 250

B. 28 + 65H > 250

C. 65 + 28H < 250

D. 65 +28H > 250

2) What is the largest whole number of hours that Anand can afford?​

Answer:

1) C. 65 + 28H < 250

2) 6 hours

Step-by-step explanation:

We are told in the question that:

Anand needs to hire a plumber. He's considering a plumber that charges an initial fee of $65 along with an

hourly rate of $28. The plumber only charges for a whole number of hours.

Hences we have:

$65 + 28 × H

We are told that:

Anand would like to spend no more than $250,

Hence,our equation becomes:

$65 + 28H ≤ $250

Where H = Hourly rates of the plumber.

1) Which inequality describes this scenario?

From the given options and our calculations above, Option C) 65 + 28H < 250 is the correct answer

2) What is the largest whole number of hours that Anand can afford?​

We would use our equation above to solve for this.

65 + 28H < 250

= 65 + 28H ≤ 250

We convert or inequality sign to equal to sign

= 65 + 28H = 250

28H = 250 - 65

28H = 185

H = 185/28

H = 6.6071428571 hours

Therefore, the largest whole number of hours that Anand can afford is 6 hours

Answer:

65+28H [tex]\leq[/tex] 250

6 hours

Step-by-step explanation: The answer from Khan

Answer:

no solution

x=0

Step-by-step explanation:

when you do the math it all equals 0 meaning there are no solutions.

I hope this helps

Answer:

[tex]y = 3 \div 4x + 10[/tex]

Answer:

a

Step-by-step explanation:

1/5^9

Answer:answer is b

Step-by-step explanation:

Answer:

yes

Step-by-step explanation:

because yes

Answer:

Step-by-step explanation:

given:

ratio of juice and lemonade = 3:4

She needs to make 49 liters of punch for the party.

find:

How much of each ingredient does she need

solution:

add the ratio 3 + 4 = 7

total punch divide by the total ratio

49 / 7 = 7 (coefficient)

juice           3 x 7 = 21

lemonade  4 x 7 = 28

                   total = 49

Answer:

14x + 5 = 31

x= 13/7

2x - 3y = -29

=2x - 3y +29 =0

Step-by-step explanation:

14x + 5 = 31

first step move the +5 to the other side beside the 31 it will become -5

Then subtract the numbers 31-5 =26

14x=26

Divide both sides by 14

x= 13/7

Answer:

550w

Step-by-step explanation: