2. A shop owner raises the price of a $100 pair of shoes by 50%. After a few weeks,
because of falling sales, the owner reduces the price of the shoes by 50%. A
customer then says that the shoes are back at the original price.
a. What is the mistaken assumption here?
b. Why is that assumption incorrect?
c. What do the shoes actually cost now?
d. By what percent should the shoes be decreased in order to have the price
back at $100?
Kk

Answer:

[tex]\frac{d}{2} - 120[/tex]

Step-by-step explanation:

You work backwards:

Half of d dollars is d/2. Then you take 120 less than that, which means you are subtracting.

Answer:

1/2d-120

Step-by-step explanation:

Alright.

d=amount of money

1/2d=half of the amount of money

1/2d-120=half of the money minus 120

Answer:

You can do (3x200)+(3x10)+(3x9) Hope it helps!

The product is 657 if you need it!

Step-by-step explanation:

Answer:

2

Step-by-step explanation:

lol

Answer:

1500+40N=A

Step-by-step explanation:

40 per month (N) plus the initial amount = $ in account (A)

Answer:

e=4

Step-by-step explanation:

Answer:

$2.25

Step-by-step explanation:

Change

= $20 - total price of the items bought

Total price of bottled water

= 4($2.75)

= $11

Total price of fruit punch

= 5($1.35)

= $6.75

Change

= $20 -($11 +$6.75)

= $20 -$17.75

= $2.25

y=kx

14=k×-4

k=14÷-4

k=-3.5

y=-3.5×-6

y=21.

Answer && Step-by-step explanation:

Simple plug and chug

we know a+b == 6 so replace the set as 6 so:

2(6)+6/6+(6)^2-2

12+1+36-2

49-2

==47

Answer:

(0, 0)

Reasoning:

Y-intercept means set x to 0 and solve, therefore;

[tex]y=1/3(0) -1y[/tex]

[tex]y=0-1y[/tex]

[tex]2y=0[/tex]

[tex]y=0/2=0[/tex]

Thus, the y-intercept is (0,0)

I hope this helps you and good luck!

Answer:

its c for sure, its obvious

Answer:the answer is 25

Step-by-step explanation:

40 divided by 8 = (chords played per minute)

5 times (chords played per minute and you get your answer

Liz will play a total of 25 chords in 5 minutes today which is determined by the ratio.

The ratio is defined as a relationship between two quantities, it is expressed as one divided by the other.

We have been given that Liz played a total of 40 chords in 8 minutes.

Let's assume she plays a total of x chords in 5 minutes.

According to the given question, we can write the ratio as:

40 chords : 8 minutes =  x chords : 5 minutes

⇒ 40 / 8 = x / 5

Apply the cross-multiplication operation,

⇒ 8x = 40 × 5

Apply the multiplication operation,

⇒ 8x = 200

⇒ x = 200/8

Apply the division operation to get the answer

⇒ x = 25

Therefore, she will play a total of 25 chords in 5 minutes.

Learn more about the Ratio here:

brainly.com/question/1504221

#SPJ3

Answer: 4 1/2

Step-by-step explanation:

The absolute value of a given number is [tex]4\frac{1}{2}[/tex].

The absolute value of a number is defined as its magnitude irrespective of the sign of the number. To find the absolute value of a real number, we consider only the number and remove the sign. It can only be a non-negative value.

The given number is [tex]-4\frac{1}{2}[/tex].

So, absolute value of a number is

|[tex]-4\frac{1}{2}[/tex]|= [tex]4\frac{1}{2}[/tex]

Hence, the absolute value of a given number is [tex]4\frac{1}{2}[/tex].

To learn more about an absolute value visit:

https://brainly.com/question/1301718.

#SPJ2

Answer:

the answer is opposite

Answer:

4 = x

Step-by-step explanation:

First, distribute the 3 to the x and 5.

3x + 15 = 5x + 7

Now, subtract 3x from both sides and 7 from both sides.

8 = 2x

Now, divide by 2 on both sides.

4 = x

#teamtrees #WAP (Water And Plant)

Step-by-step explanation:

y=p²+qr

y-qr=p²

p=√y-qr

now, is it fine..

Answer:

Thx for my points back that you stole

Step-by-step explanation:

Answer:

93%

Step-by-step explanation:

From the question given above, the following data were obtained:

Total number of student = 300

Number of student that can not drive = 21

Percentage of student that can drive =.?

Next, we shall determine the number of student that can drive. This can be obtained as follow:

Total number of student = 300

Number of student that can not drive = 21

Number of student that can drive =?

Number of student that can drive = (Total number of student) – (Number of student that can not drive)

Number of student that can drive = 300 – 21

Number of student that can drive = 279

Finally, we shall determine the percentage of student that can drive as illustrated below:

Total number of student = 300

Number of student that can drive = 279

Percentage of student that can drive =?

Percentage of student that can drive =

279/300 × 100

= 93%

Thus, 93% of the student can drive.

Answer:

c

Step-by-step explanation:

Answer:

Hope this helps!!!

Step-by-step explanation:

6(2−3)

Answer:

6(2n - 3)

Step-by-step explanation:

Answer: Hence Pair( x, y) = [ 105/2, 105/2]

Step-by-step explanation:

Given that;

Among all pairs of numbers with a sum of 105;

the pair whose product is maximum = ?

so let pairs of numbers with a sum of 105 be x and y respectively

x + y = 105

let y = 105 - x

now

product = xy =  x( 105 - x ) = 105x - x²

now

p(x) = 105x - x²

for maximum value of p

dp/dx =0

⇒ dp/dx = 105 - 2x = 0

2x = 105

x = 105/2

y + x = 105

y = 105 - x

y = 105 - 105/2 = 105/2

Hence Pair( x, y) = [ 105/2, 105/2]

Answer:

there are 2 Magnesium and Nitrogen

Step-by-step explanation:

Answer:

the answer is a your welcome

Answer:

x<4.7

Step-by-step explanation:

2(x-2)+8.6<14

2x-4+8.6<14

2x=4.6<14

2x<14-4.6

2x<9.4

_____

x<4.7

                                mom said its my turn to be brainliest answer ;0

                                also, help me on my math hw maybe ?

Answer: x < 4.7

Step-by-step explanation:

Answer:

S10 = 320

Step-by-step explanation:

The formula for calculating the sum of the nth term of an AP is expressed as

Sn = n/2(2a+(n-1)d))

Given

a = 4

d = 5

n = 10

S10 =10/2{2(5)+(10-1)5}

S10 =5{10+9(6)}

S10 =5{10+54}

S10 = 5(64)

S10 = 320

Hence the sum of the first ten terms of the sequence is 320

Answer:

n=6.42

Step-by-step explanation:

Following the steps for this equation.

Answer:

29.9.2+

Step-by-step explanation:

That should be right

Answer:

y=5

Step-by-step explanation:

First find the slope

m = ( y2-y1)/(x2-x1)

   = ( 5-5)/( -7 - -3)

   = ( 5-5) / ( -7+3)

  = 0/-4

The slope is 0

This means it is a horizontal line

Horizontal lines are in the form

y =

The y coordinate is 5

y=5

Answer:

22 is 10 of 220

Step-by-step explanation:

hope it help