it has to be a written essay and various keywords/steps in order so anyone can follow ty

Answer: Marked price Rs. 600

Step-by-step explanation:

Let M be the marked price

1) When shop keeper sold at 20% discount, ie. SP = 0.8M

CP - SP = 20

CP = 20 + SP

CP = 20 + 0.8M

2) When shopkeeper sells at 8% discount, he makes a profit of 10%

SP = 0.9M/1.08

Equating 1 and 2, we get

20 + 0.8M = 0.9M/1.08

21.6 + 0.864M = 0.9M

0.036 M = 21.6

M = 21.6 / 0 036

M = 600

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\(\Large\fbox{\color{purple}{QUESTION}}\)

A shopkeeper made a loss of Rs 20 when he sold a bag at 20% discount. If he had sold it at 10% discount, he would have gained 8%. Find the marked price of the bag.

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\(\Large\fbox{\color{purple}{ SOLUTION }}\)

let M, S and C be the mark price, selling price & cost price respectively.

1) when shopkeeper sells at 20% discount then he suffers a loss of rupees 20 then we have :-

\(s = ( 1 - \frac{20}{100} ) \times m = 0.8m \\ \\ and \: c - s = 20\)

C = 20 + 0.8 m ------------- eq 1

2) when shopkeeper sells at 20% discount then he makes a profit of 8% then we have

\(s = ( 1 - \frac{10}{100} ) \times m = 0.9m \\ \\ and \\ \\ s = ( 1 + \frac{8}{100} ) \times c = \: \frac{0.9m}{1.08} \)

since the cost price of bag doesn't change and equating 1 and 2 we get

\(20 + 0.8m = \frac{0.9m}{1.08} \\ \\ 21.6 + 0.864m \: = 0.9m \\ \\ 0.036m \: = 21.6 \\ \\ m \: = 600\)

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\(\bf\Large\red{ THANKS \: FOR \: YOUR}\)

\(\bf\Large\red{ QUESTION \: HOPE \: IT } \)

\(\bf\Large\red{ HELPS }\)

\(\Large\mathcal\green{FOLLOW \: ME} \)

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Answer:

The value of y = 4

Step-by-step explanation:

Explanation:-

Given the operation *is defined by

         x*y=2 x-y,where x and y are real numbers

Given  y * ( 3 * y ) = 6

     ⇒    y * ( 2 (3) -y) = 6    (∵    x*y=2 x-y)

     ⇒     y * ( 6 - y) = 6

    ⇒     2 (y) - (6 - y ) = 6

    ⇒       2 y - 6 + y = 6

   ⇒         3 y = 6 + 6

  ⇒             3 y = 12

  ⇒               y = 4

Verification:-

Put y =4 in given operation

 L.H.S    

 y * ( 3 * y ) =  4 * ( 3 * 4)

                  = 4 * (2(3)-4)      (∵ x*y=2 x-y )

                 = 4 * ( 6-4)

                = 4 * 2            

               = 2(4) -2      (∵ x*y=2 x-y )

               = 6

              =R.H.S

  y *(3*y) = 6​

          ∴ y = 4 is satisfied  

Answer:

12............................

Answer:

12

Step-by-step explanation:

decreased mean minus

20 - 8 = 12

Answer: A. 70 B. 43 C. 331 D. 20

Step-by-step explanation:

just take away the decimal

Answer:

A. 70

B. 43

C. 331

D. 20

Step-by-step explanation:

Answer:

Area of original figure = area of parallelogram

= 7 yd • 4 yd

= 28 yd^2

3 feet = 1 yard, so 9 ft^2 = 1 yd^2

28 yd^2 (9 ft^2/1 yd^2) = 252 ft^2

Answer:

the answer would be C.

Step-by-step explanation:

You add up 4 + 5 which is Sam and RJ together. Then multiply 5 to get the amount they sold for each.

Hope this helped!

Answer:

3x+5

3(4)+5=12+5+17

Step-by-step explanation:

x is the hours

so you substitute the number of hours for x

Answer:

for 1 hour it is 8 dollars y= 3x + 5    4 hours is 17 dollars

Step-by-step explanation:

Answer: linear

Step-by-step explanation:

GiveN:

To FinD:

Step-wise-Step Explanation:

Letters we have: A, D, Q, Y, R, F, E, V, M

Total Number of letters = 9

Vowels among the given letters = 2

Probability of getting vowels:

\( \rm{ = \dfrac{ no. \: of \: vowels \: we \: have }{total \: no. \: of \: letters} }\)

= n(vowels) / n(letters)

= 2 / 9

The required probability of getting a vowel when chosen randomly is 2/9.

#KeepOnExploring!

Answer: $15

Step-by-step explanation: To solve this, just divide 120 by 8:

120÷8=15

hope this helps!

please give brainliest!

Answer:

7,000

Step-by-step explanation:

Answer:

$5,760

Step-by-step explanation:

Start by converting 20% to a decimal, by dividing by 100 = 0.20

Then, multiply 9,000 x 0.20 = 1,800 to get the amount taken off by the sale.

9,000 - 1,800 = 7,200, the first sale price.

Multiply 7,200 by 0.20 = 1,440 to get the amount of the second discount.

7,200 - 1,440 = $5,760, the final price of the car.

Answer:

48 +7n

Step-by-step explanation:

3 + 5(9 + 2n) -3n

3 + 45 + 10n -3n

3 + 45 + 7n

48 +7n

Answer:

Step-by-step explanation:

ressions.

There are a few boxes with 12 red pens in each and a few boxes with 10 blue pens in each. If 10 red pens and 5 blue pens are removed, the total number of pens that remains is given by the expression (12x − 10) + (10y − 5). Here, x represents the number of boxes containing red pens and y represents the number of boxes containing blue pens.

Answer:

Question A: A

Question B: C

Question C: B

Step-by-step explanation:

Answer:

78 inches

Step-by-step explanation:

Well if we are assuming that the 60 inches and 50 inches are straight then we can use the Pythagorean theorem to do a^2 + b^2 = c^2, so  so a=60 and b=50. so we do that we get 6100, and if we find the square root of that it will be about 78.1024, and that rounded is 78.

Step-by-step explanation:

1.) 5x-4y=20

y=5/4x-5

5x/4-5=0

x=4

2.) 3x+3y=15

y=-x+5

x+5=0

-x=-5

=x=5

3.) y=3/4x-2

3/4x-2=0

x=0

3x4x/4 -2 x4x-0x4x

3-2x4x=0x4x

3-8x=0

8x=-3

=x=3/8

4.) y=3/2x+3

3/2x+3=0

x=0x

3x2x/2+3x2x=0x2x

3+3x2x=0x2x

3+6x=0

6x=-3

x=_3/6

=x=-1/2

Answer:

A is 15 degrees

B is -16 degrees

The volume of the total solid figure is the sum of two individual cuboids which is 88 cm³.

A cuboid is a three-dimensional closed figure which has volume along with surface area.

The volume of a cuboid is the product of its length, width, and height.

The total surface area of a cuboid is 2(lw + wh + wl) and the lateral surface area is 2(l + w)×h.

Given, A figure which is a combination of two cuboids.

The bottom cuboid has a length of 6 cm, a height of 2 cm, and a width of 4 cm, and the top cuboid has a height of 4 cm, a width of 2 cm, and a length of 5 cm.

Therefore, The total volume of the figure is the sum of the individual figures which is,

= (6×2×4) + (4×2×5) cm³.

= 48 + 40 cm³.

= 88 cm³.

learn more about cuboids here :

https://brainly.com/question/29568631

#SPJ2

Part A: 15x= $810.75. Part B: x= $54.05

The total money earned from 15 tickets is $810.75.

Assume, the money earned from selling 1 ticket is $x.

Therefore, the money earned from selling 15 tickets= 15*x= 15x= $810.75

Here, the variable, i.e. the changing value, is x which is the price of each ticket. The equation hence derived is 15x= $810.75.

Using the equation above,

15x= $810.75.

Dividing both sides by 15,

We get,

x= $54.05

Hence, $54.05 is the price of each ticket.

To learn more about linear equations with single variable:

https://brainly.com/question/28555579

Answer:5x^-9

Step-by-step explanation:

Answer:

Brainliest goes to me

Step-by-step explanation:

if you solved it... it would be 8.75

but you can't like 0.75 of a color so it isn't possible

0.75 is to be rounded up so I would do 9

Answer:All you have to do is multiply

Step-by-step explanation:

Answer:

85 degrees

Step-by-step explanation:

Answer:

1, 2, 3, 4, 5, 6, 7, 8, and 9.

Step-by-step explanation:

Answer:

4,3 and 1,4

Step-by-step explanation: