1answer.
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
Elina [12.6K]
3 years ago
9

Pam wants to buy a DVD player. The original price is $50. What is the sale price? with a 90% off

Mathematics
1 answer:
qaws [65]3 years ago
5 0

Answer:

5 dollars

Step-by-step explanation:

If the price is 90 % off, we will pay 100 - 90 or 10 %

Take the original price times 10 %

50 * 10 %

50 * .10

5

You might be interested in
Which simplified expression represents the area of the parallelogram
Lerok [7]
Just multiply the sum of the numbers then divide
4 0
3 years ago
A small business owner estimates his mean daily profit as $970 with a standard deviation of $129. His shop is open 102 days a ye
Katena32 [7]

Answer:

The probability that the shopkeeper's annual profit will not exceed $100,000 is 0.2090.

Step-by-step explanation:

According to the Central Limit Theorem if we have a population with mean <em>μ</em> and standard deviation <em>σ</em> and we select appropriately huge random samples (<em>n</em> ≥ 30) from the population with replacement, then the distribution of the sum of values of <em>X</em>, i.e ∑<em>X</em>, will be approximately normally distributed.  

Then, the mean of the distribution of the sum of values of X is given by,  

 \mu_{x}=n\mu

And the standard deviation of the distribution of the sum of values of X is given by,  

 \sigma_{x}=\sqrt{n}\sigma

The information provided is:

<em>μ</em> = $970

<em>σ</em> = $129

<em>n</em> = 102

Since the sample size is quite large, i.e. <em>n</em> = 102 > 30, the Central Limit Theorem can be used to approximate the distribution of the shopkeeper's annual profit.

Then,

\sum X\sim N(\mu_{x}=98940,\ \sigma_{x}=1302.84)

Compute the probability that the shopkeeper's annual profit will not exceed $100,000 as follows:

P (\sum X \leq  100,000) =P(\frac{\sum X-\mu_{x}}{\sigma_{x}}

                              =P(Z

*Use a <em>z</em>-table for the probability.

Thus, the probability that the shopkeeper's annual profit will not exceed $100,000 is 0.2090.

6 0
3 years ago
Which is a correct first step for solving this equation?<br> 2 + 7 = 2x + 5 – 4x
Mariulka [41]

Step-by-step explanation:

Bringing like terms on one side

2 + 7 - 5 = 2x - 4x

9 - 5 = - 2x

4 = - 2x

4/ - 2 = x

- 2 = x

4 0
3 years ago
Ac=22 bc=x+14 ab=x+10 find x
Nesterboy [21]

AB + BC = AC                 <em>Segment Addition Postulate</em>

(x + 10) + (x + 14) = 22     <em>Substitution</em>

2x + 24 = 22                   <em>Simplify (added like terms)</em>

2x = -2                            <em>Subtraction Property of Equality</em>

x = -1                               <em>Divison Property of Equality</em>

Answer: x = -1

5 0
3 years ago
Pls help me on this question!!
Yanka [14]

Answer:

from what i can tell this seems to be a translation three units down and three units to the left, this is not a dilation

Step-by-step explanation:

4 0
2 years ago
Other questions:
  • Which expression could be used to calculate the length, in feet, of the rectangle?
    12·2 answers
  • At grace’s job,15% of the time she has to answer the phone. Write this percent as a decimal.
    12·1 answer
  • CAN SOME HELP ME PLEASE IT'S DUE IN 10 MINS​
    5·1 answer
  • When 130 is added to a number it equals 60 more than 2 times the number.
    14·2 answers
  • A square quilt is made by sewing smaller square sections together. The same number of smaller squares are in each row. Beth’s sq
    7·2 answers
  • Consider that the length of rectangle A is 10 cm and its width is 6 cm. Which rectangle is similar to rectangle A? A) A rectangl
    14·1 answer
  • In what career would you most likely apply concepts from geometry?
    6·2 answers
  • Help I'll give you the brainlessly
    6·2 answers
  • Rounded to the nearest tenth, what is the area of rectangle ABCD? rectangle ABCD with diagonal AC, labeled as measuring 9 feet,
    9·1 answer
  • The dot plot shows the number of hours each week that students in after-school sports spent at practice. Which describes the spr
    12·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!