answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
german
8 days ago
9

Last year, sales at a book store increased from $5,000 to $10,000. This year, sales decreased to $5,000 from $10,000. What perce

ntage did sales increase last year? What percentage did sales decrease this year?
Mathematics
2 answers:
Leona [4.1K]8 days ago
5 0

Solution:

We know that

The preceding year, the bookstore's sales rose from $5,000 to $10,000.

We determine percentage increase using the formula

Percentage increase=\frac{change}{Initial}*100

By substituting the values, we obtain

Percentage increase=\frac{10000-5000}{5000}*100

Percentage increase =\frac{5000}{5000}*100=100 %.

<pThis year, sales declined to $5,000 from $10,000.

Percentage Decrease =\frac{change}{Initial}*100

By substituting the corresponding figures, we observe

Percentage Decrease =\frac{10000-5000}{10000}*100

Percentage Decrease =\frac{5000}{10000}*100=50 %.

Svet_ta [4.3K]8 days ago
4 0
1. 200% =2
5000 multiplied by 2 equals 10000
2.50% = 0.5
10000 multiplied by 0.5 equals 5000
You might be interested in
LMN is a straight angle. Find m LMP and m NMP​
PIT_PIT [3919]

Answer:

(-16x + 13)° + (-20x + 23)° = 180° (ángulo recto)

-16x° + 13° - 20x° + 23° = 180°

-36x° + 36° = 180°

-36x° = 180° - 36°

-36x° = 144°

-x° = 144°/(-36)

x° = 36°

Espero que puedas conocer esta respuesta

3 0
9 days ago
Find the dimensions of the closed rectangular box with maximum volume that can be inscribed in the unit sphere.
Inessa [3907]

Answer:

Wyjaśnienie krok po kroku:

Załóżmy, że prostokąt ma wierzchołki (x,y,z) w dodatnim oktancie.  Prostokątny pudełko musi być symetryczne względem wszystkich trzech osi.

Wtedy jego boki to

2x,2y,2z

Objętość = 8xyz

Maksymalizuj objętość przy założeniu

x^2+y^2+z^2 =1

tj. g(x,y,z) = x^2+y^2+z^2 -1=0

Użyj mnożników Lagrange'a, mamy

∇f(x,y,z)=λ∇g(x,y,z)przy maksimum

∇f(x,y,z)=λ∇g(x,y,z) =(8yz,8xz,8xy)\\∇g(x,y,z)=(2x,2y,2z)

8yz=2λx8xz=2λy8xy=2λz

Dzieląc otrzymujemy

\frac{y}{x} =\frac{x}{y} \\x^2=y^2

Podobnie y^2=z^2

Zatem otrzymujemy 3x^2 =1\\x = \frac{1}{\sqrt{3} }

Stąd wymiary to

(2x,2y,2z)

<pzatem wymiary="" to="">

\frac{2}{\sqrt{3} },\frac{2}{\sqrt{3} },\frac{2}{\sqrt{3} } )

</pzatem>
3 0
1 day ago
Venetta buys 2 pounds of pistachios and 3 pounds of almonds. The pistachios cost $4 more per pound than the almonds. She pays a
babunello [3635]

Answer:

A. Combining one pound of pistachios with one pound of almonds costs $20.

C. Decreasing the almond quantity by one pound leads to a total price of $40.

E. The price p (in dollars) per pound of pistachios is represented by the equation 2p + 3(p – 4) = 48.

Step-by-step explanation:

Let:

x = cost per pound of pistachios

y = cost per pound of almonds

We know that

x = y + 4 (Equation A)

2x + 3y = 48 (Equation B)

Substitute x from Equation A into Equation B:

2(y + 4) + 3y = 48

2y + 8 + 3y = 48

5y = 48 – 8

y = 8

Find x:

x = 8 + 4 = 12

Therefore, pistachios cost $12 per pound and almonds cost $8 per pound.

Verify the statements:

Case A) One pound of each equals $20.

True, since 12 + 8 = 20.

Case B) Pistachios cost twice as much as almonds.

False, because 2 × 8 = $16 ≠ $12.

Case C) Reducing almond pounds by 1 yields $40 total.

True, as 2(12) + 2(8) = 24 +16 = 40.

Case D) The almond cost modeled by 2(a – 4) + 3a = 48.

False; it should be 2(a + 4) + 3a = 48.

Case E) The pistachio cost modeled by 2p + 3(p – 4) = 48.

True, since p = a + 4 implies a = p – 4.

8 0
15 days ago
Margie received her store order on 12/3/16 at 4AM. She just opened one of the
Inessa [3907]

Answer:

Expiration Date: 1/17/2017

Expiration Time: 4:00am

Preparation Date: 12/3/2016

Preparation Time: 4:00am

Initial Usage Date: 12/7/2016

Detailed Breakdown:

An illustrative depiction of the question has been provided in an image format for clarity.

From the information given, it is noted that her store order arrived on 12/3/2016 at 4am, confirming that both the prep date and time are 12/3/2016 and 4am respectively. The product has a printed expiration date of 1/17/2017, logically indicating that its expiration time is also 4am, in line with the prep time; adding 24 hours leads us back to the same time on the expiration date. Furthermore, we were informed that she utilized the product on 12/7/2016, which marks the initial use date. Based on this information, we can summarize as follows:

Expiration Date: 1/17/2017

Expiration Time: 4:00am

Preparation Date: 12/3/2016

Preparation Time: 4:00am

Initial Usage Date: 12/7/2016

8 0
17 days ago
An airplane travels at 950 km/h. how long does it take to travel 1.00km? in hours
AnnZ [3877]
An airplane flying at a speed of 950 kilometers per hour would take 0.0010526 hours to travel 1.00 kilometer.
6 0
7 days ago
Other questions:
  • If T is the midpoint of SU,find x. ( ST=8x+11 and TU= 12x-1)
    5·2 answers
  • Emma is an artist and has created seven paintings. She plans to paint three additional paintings each week. What statements are
    5·2 answers
  • The equation of a line given two points needs to be found. Samuel claims that slope-intercept form will generate the equation an
    5·2 answers
  • if 20% of the cases of soda that Taylor sold were cherry soda, how many cases of cherry soda did taylor sell?
    12·2 answers
  • Last week, the price of apples at a grocery store was $1.60 per pound. This week, apples at the same grocery store are on sale a
    8·2 answers
  • A researcher is studying a group of field mice. the distribution of the weight of field mice is approximately normal with mean 2
    8·2 answers
  • David read 69 books in a 12-month period. Sarah read 54 books in the same period of time. How many more books per month did Davi
    10·2 answers
  • SAT scores (out of 1600) are distributed normally with a mean of 1100 and a standard deviation of 200. Suppose a school council
    6·1 answer
  • A candy store called "Sugar" built a giant hollow sugar cube out of wood to hang above the entrance to their store. It took 13.5
    13·1 answer
  • A rectangular prism must have a base with an area of no more than 27 square meters. The width of the base must be 9 meters less
    8·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!