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
Lelechka [254]
3 years ago
6

A computer store bought a program at a cost of ​$10 and sold it at a selling price of ​$12. Find the percent markup.

Mathematics
1 answer:
grin007 [14]3 years ago
3 0
Percent mark up the amount of percent gain so (12-10)/10 or <u>20%</u>
You might be interested in
Pls help me out with this question
olga2289 [7]

Answer:

HL

Step-by-step explanation:

The things that are congruent between the 2 triangles are the 90° angles and the hypotenuses and legs. HA and LA only work with the acute angles, not right angles, and AA isn't a way of proving things to be congruent, meaning that HL is the answer

3 0
3 years ago
Read 2 more answers
Which equivalent equation is the result of combining like terms in the given equation? 2r + 55 = 6r + 7 – 2r
nikklg [1K]
I hope I help you out
6 0
3 years ago
In a particular faculty 60% of students are men and 40% are women. In a random sample of 50 students what is the probability tha
zimovet [89]

Answer:

a) The expected value is given by:

E(X) = np = 50*0.4 = 20

and the variance is given by:

Var(X) =np(1-p) = 50*0.4*(1-0.4) = 12

b) P(X>25)= 1-P(X\leq 25)

And we can find this probability with the following Excel code:

=1-BINOM.DIST(25,50,0.4,TRUE)

And we got:

P(X>25)= 1-P(X\leq 25)=0.0573

c) 1) Random sample (assumed)

2) np= 50*0.4= 20 >10

n(1-p) =50*0.6= 30>10

3) Independence (assumed)

Since the 3 conditions are satisfied we can use the normal approximation:

X \sim N(\mu = 20 , \sigma= 3.464)

d) P(X>25) = 1-P(Z< \frac{25-20}{3.464}) = 1-P(z

e) P(X>25)= P(X>25.5) = 1-P(X \leq 25.5)

P(X>25)= P(X>25.5) = 1-P(X \leq 25.5)= 1-P(Z

Step-by-step explanation:

Previous concepts

The binomial distribution is a "DISCRETE probability distribution that summarizes the probability that a value will take one of two independent values under a given set of parameters. The assumptions for the binomial distribution are that there is only one outcome for each trial, each trial has the same probability of success, and each trial is mutually exclusive, or independent of each other".

Let X the random variable of interest, on this case we now that:

X \sim Binom(n=50, p=0.4)

The probability mass function for the Binomial distribution is given as:

P(X)=(nCx)(p)^x (1-p)^{n-x}

Where (nCx) means combinatory and it's given by this formula:

nCx=\frac{n!}{(n-x)! x!}

Part a

The expected value is given by:

E(X) = np = 50*0.4 = 20

and the variance is given by:

Var(X) =np(1-p) = 50*0.4*(1-0.4) = 12

Part b

For this case we want to find this probability:

P(X>25)= 1-P(X\leq 25)

And we can find this probability with the following Excel code:

=1-BINOM.DIST(25,50,0.4,TRUE)

And we got:

P(X>25)= 1-P(X\leq 25)=0.0573

Part c

1) Random sample (assumed)

2) np= 50*0.4= 20 >10

n(1-p) =50*0.6= 30>10

3) Independence (assumed)

Since the 3 conditions are satisfied we can use the normal approximation:

X \sim N(\mu = 20 , \sigma= 3.464)

Part d

We want this probability:

P(X>25) = 1-P(Z< \frac{25-20}{3.464}) = 1-P(z

Part e

For this case we use the continuity correction and we have this:

P(X>25)= P(X>25.5) = 1-P(X \leq 25.5)

P(X>25)= P(X>25.5) = 1-P(X \leq 25.5)= 1-P(Z

4 0
3 years ago
Last year, a professional basketball team
jarptica [38.1K]

Answer:

15%

Step-by-step explanation:

Take 9 and divide that by 60.

8 0
2 years ago
Solve the equation by clearing the decimals: 0.8x -0.3 = 0.7x + 0.2
Mashutka [201]

Answer:

x = 5

Step-by-step explanation:

0.8x - 0.3 - 0.7x = 0.2

0.8x - 0.7x = 0.2 + 0.3

0.1x = 0.2 + 0.3

0.1x = 0.5

5 0
3 years ago
Other questions:
  • A line through (-1,1) and (2,3) in slope intercept form
    12·1 answer
  • Jayden makes a 5-sided spinner, numbered from 1 to 5. He records the number of times he scores a 3 from different numbers of spi
    14·1 answer
  • Which describes something that is owned and has value?
    6·2 answers
  • If point D is translated 6 units right and 4 units up, what are the coordinates of D?
    9·2 answers
  • PLZZZZZZZZZZZZZZZZZZZZZZZZZZZZZ HELPPPPPPPPPPPPPPPPPPPPPPPPLPPPPPPPPPPPPPPPPPPPPPPPPP I SWEAR I DO ANYTHING JUST PLZZZZZZZZZZZZZ
    13·1 answer
  • Three children Awuni,baba and lsaka were given 160 oranges to share.Awuni got 1/4 oranges. Baba and lsaka shared the remainder i
    15·1 answer
  • Which number is greater then -3 A.-1 B.-3 C.-5 D.-7
    15·2 answers
  • I WILL GIVE BRAINLIEST IF YOU EXPLAIN YOUR ANSWER!!
    7·2 answers
  • An jet travels at a constant speed of 320 miles per hour. How far, in miles, will the jet travel in 15 minutes?
    10·2 answers
  • -
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!