Answer:
A
Step-by-step explanation:
A isn't a solution
Answer:
A is the answer
Step-by-step explanation:
Octavia buys a pair of jeans for $20.50 plus 8% tax.
Then she buys a jacket for $32 plus 8% tax.
Answer:
$56.70 all together
Step-by-step explanation:
$22.14 for the jeans
$34.56 for the jacket
$56.7 all together
Take your tax and move the decimal over to the left by 2 spaces
8. becomes .08
take .08 and multiply it by the price so
20.50 x .08= 1.64
and
32 x .08=2.56
the number you get is how much the tax is, $1.64 is 8% of $20.15
take that number and add it to your price
$1.64+$20.50= $22.14
Answer:
$56.70
Step-by-step explanation:
22.14+34.56=$56.70
Suppose that X is the time it takes a randomly chosen professor in a university department to type and send a standard letter of recommendation for a past student who is applying for a graduate degree program. Suppose X has a normal distribution, and assume the mean is 10.5 minutes and the standard deviation 3 minutes. If you were to take a random sample of 50 professors and measure the time it takes each one of them to type and send such a standard letter of recommendation, what is the probability that their mean time is less than 9.5 minutes?
Answer:
0.0091 = 0.91% probability that their mean time is less than 9.5 minutes.
Step-by-step explanation:
To solve this question, we need to understand the normal probability distribution and the central limit theorem.
Normal Probability Distribution:
Problems of normal distributions can be solved using the z-score formula.
In a set with mean [tex]\mu[/tex] and standard deviation [tex]\sigma[/tex], the z-score of a measure X is given by:
[tex]Z = \frac{X - \mu}{\sigma}[/tex]
The Z-score measures how many standard deviations the measure is from the mean. After finding the Z-score, we look at the z-score table and find the p-value associated with this z-score. This p-value is the probability that the value of the measure is smaller than X, that is, the percentile of X. Subtracting 1 by the p-value, we get the probability that the value of the measure is greater than X.
Central Limit Theorem
The Central Limit Theorem estabilishes that, for a normally distributed random variable X, with mean [tex]\mu[/tex] and standard deviation [tex]\sigma[/tex], the sampling distribution of the sample means with size n can be approximated to a normal distribution with mean [tex]\mu[/tex] and standard deviation [tex]s = \frac{\sigma}{\sqrt{n}}[/tex].
For a skewed variable, the Central Limit Theorem can also be applied, as long as n is at least 30.
The mean is 10.5 minutes and the standard deviation 3 minutes.
This means that [tex]\mu = 10.5, \sigma = 3[/tex]
Sample of 50:
This means that [tex]n = 50, s = \frac{3}{\sqrt{50}}[/tex]
What is the probability that their mean time is less than 9.5 minutes?
This is the pvalue of Z when X = 9.5. So
[tex]Z = \frac{X - \mu}{\sigma}[/tex]
By the Central Limit Theorem
[tex]Z = \frac{X - \mu}{s}[/tex]
[tex]Z = \frac{9.5 - 10.5}{\frac{3}{\sqrt{50}}}[/tex]
[tex]Z = -2.36[/tex]
[tex]Z = -2.36[/tex] has a pvalue of 0.0091
0.0091 = 0.91% probability that their mean time is less than 9.5 minutes.
Please need help is for today
Answer:
12+m =85
Step-by-step explanation:
.....
......
....
Answer:
12+m=85
Step-by-step explanation:
m+85= 12 In this m would be equal to-73. It has nothing related to the statement above.
12-m= 85 If a number would have to be subtracted from 12 then the answer would have to be with a negative sign. (-)
12m= 85 12m can be written as 12*m
12+m= 85 is the correct answer.
A company has to buy computers and printers. Each computer, x, costs $550 and each printer, y, costs $350. If the company spends $8,800 and buys a total of 20 machines, how many of each did it buy?
Enter a system of equations to represent the situation, then solve the system.
Answer:
The company bought 9 computers and 11 printers.
Step-by-step explanation:
Given that a company has to buy computers and printers, and each computer, x, costs $ 550 and each printer, y, costs $ 350, if the company spends $ 8,800 and buys a total of 20 machines, to determine how many of each did it buy the following calculation must be performed:
20 x 550 + 0 x 350 = 11,000
15 x 550 + 5 x 350 = 10,000
10 x 550 + 10 x 350 = 9,000
9 x 559 + 11 x 350 = 8,800
Thus, the company bought 9 computers and 11 printers.
What is the largest six digit number
you can make that has a 1 in the
thousands place?
Answer:
dwjoqwejo;fjoqfjop
Step-by-step explanation:
select the graph for the solution of the open sentence click until correct graph appears [×]>1
Is there supposed to be a picture or a multi choice answer because there is none.Sorry
Simplify the expression. 5(x + 10) + x
Answer:
6x+50
Step-by-step explanation:
we need to distribute the 5 first
5x+50+x
then
6x+50
Answer:
[tex]6x + 50[/tex]
Step-by-step explanation:
[tex]5x + 50+ x[/tex]
[tex]6x + 50[/tex]
Thickness measurements of ancient prehistoric Native American pot shards discovered in a Hopi village are approximately normally distributed, with a mean of 5.3 millimeters (mm) and a standard deviation of 1.1 mm. For a randomly found shard, find the following probabilities. (Round your answers to four decimal places.)
a. the thickness is less than 3.0 mm.
b. the thickness is more than 7.0 mm
c. the thickness is between 3.0 mm and 7.0 mm
Answer:
Follows are the responses to the given question:
Step-by-step explanation:
In point a:
z score for 3:
[tex]= \frac{(3 - 5.3)}{1.1} \\\\ =-2.09[/tex]
So,
P(Less than 3.0 mm):
[tex]=P(z < -2.09)\\\\ = 0.0183[/tex]
In point b:
z score for 7:
[tex]= \frac{(7 - 5.3)}{1.1} \\\\= 1.55[/tex]
So,
P(Less than 3.0 mm):
[tex]= P(z > 1.55) \\\\= 0.0611[/tex]
In point C:
P(Between 3 and 7):
[tex]= P(-2.09 < z < 1.55)\\\\\ = 0.9206[/tex]
Will someone please help me..?
Answer:
What help do you need?
tell me about it
5 características importantes Sobre la reproducción que se realiza a través de las flores
Answer:
No one here speaks spanish-
Step-by-step explanation:
Mrs. Rayo cut one piece of pie as shown in the drawing.
From the first cut to the second cut, she rotated the knife
60 one-degreee turns.
second cut
o
first cut
What is the measure of the angle formed by the piece of
pie?
40°
60°
100°
O 180°
Answer:
60°
Step-by-step explanation:
She rotated the knife 60° so the second cut will make an angle of 60° to the first cut.
There are 10 Pokémon cards on a table. Three are identical Pikachu cards, two are identical Charmander
cards, four are identical Mew cards, and 1 is a Gengar card. How many different ways can these cards be arranged?
Answer:
These cards can be arranged in 3,628,800 ways.
Step-by-step explanation:
Number of arrangements of n elements:
The number of possible arrangements of n elements is given by:
[tex]A_{n} = n![/tex]
How many different ways can these cards be arranged?
10 cards, so:
[tex]A_{10} = 10! = 3628800[/tex]
These cards can be arranged in 3,628,800 ways.
Use synthetic division to find the result when 2x4 – 1423 + 16x2 – 19x - 30 is
divided by x -
6.
Branliest to correct answer no guessing please
Answer:
THE CORRECT IS B(a and b)= p(A).P(B)
Plsss help!! Write the equation of the line for the graph shown below.
Answer:
C. y = ½x + 4
Step-by-step explanation:
Equation for a line in slope-intercept form is given as y = mx + b
So, we need to find the slope (m) and the y-intercept (b) of the line given.
m = ∆y/∆x
Using two points on the line, (0, 4) and (-2, 3),
Slope (m) = (3 - 4)/(-2 - 0)
m = -1/-2
m = ½
y-intercept (b) = 4, this is where the line intercepts the y-axis.
To write the equation, substitute m = ½ and b = 4 into y = mx + b
Thus:
y = ½x + 4
In a survey of 295 people , 23% said they live in an apartment, about how many people surveyed live in an apartment?
Answer:
67.85%
Step-by-step explanation:
Find 23% of 295.
Hope this helps u :)
HELP PLSSS giving out the brainliest answerr HELPPPPPP
Answer: d is correct
Step-by-step explanation:
Answer: Answer is D
Asdfghkkhd
According to a study, 77 % of K-12 schools or districts in a country use digital content such as ebooks, audio books, and digital textbooks. Of these 77 %, 7 out of 20 use digital content as part of their curriculum. Find the probability that a randomly selected school or district uses digital content and uses it as part of their curriculum.
Answer:
26.95%
Step-by-step explanation:
The computation of the probability that randomly selected is shown below:
Since 77% school or district use digital content
And, of these 77%, 7 out of 20 use the digital content as the curriculum part
So based on the above information
The probability is
= 77% × 7 ÷ 20
= 26.95%
Hence, the probability is 26.95%
A parking lot has 30 cars and 12 trucks. Find the ratio of cars to trucks.
Answer:
::::::::::::::::::
5:2
what is equivalent to 4(2+x)
Answer:
4x+8
Step-by-step explanation:
Help If $a$, $b$, $c$, and $d$ are replaced by four distinct digits from $1$ to $9$, inclusive, then what's the largest possible value of the difference $a.b - c.d$ ?
Answer: 10 I think
Step-by-step explanation:
9+1 I guess
Answer:
:Correct answer is 18.3
:Dollar replacement 70
The ages of the children, in years, at a birthday party are 8, 12, 10, 9, 12, 9, 11, and 9. What is
the mean age of children at the party?
Answer:
10 years
Step-by-step explanation:
Mean is the same as average so add up all the ages and divide by the number of people there:
8+12+10+9+12+9+11+9= 80
80/8=10
Answer:
10
Step-by-step explanation:
Plz helppppppppppppp
Answer:
LK = 7 as this is a 45-45-90 Triangle
Step-by-step explanation:
Hello! To begin answering this question, one must understand that angle the Pythagorean Theorem applies here! Hypotenuse squared = leg squared + leg squared, (7 square root of 2)^2 = 7^2 + X^2, 7^7 + 7^7 = (7 square root of 2)^2, 98 = 98.
Answer:
Step-by-step explanation:
What is the pressure of 0.5 moles of oxygen gas in a 1.50L container at -37°C?
Answer:
volved with elements and compounds composed of atoms, molecules and ions: their composition, structure, properties, behavior and the changes they undergo during a reaction with other substances.
The graphs of triangles LMN and NOP are shown.
which of the following best describes the slope of line LP?
A) 5/2
B) 2
C) 2/5
D) 1/3
===========================================================
Explanation:
Point L is located at (-8, 1) while P is at the point (7,7)
Let's apply the slope formula for these two points
m = (y2-y1)/(x2-x1)
m = (7-1)/(7-(-8))
m = (7-1)/(7+8)
m = 6/15
m = (3*2)/(3*5)
m = 2/5 is the slope of line LP
A slope of 2/5 means that each time you go up vertically 2 units (rise), you move to the right 5 units (run). In short, it's "up 2, over to the right 5". A positive slope means we move upward as we move from left to right.
How could you determine the number of buses that will be needed if 18 of the 134 people going will use
alternate means of transportation? Remember that each bus can hold up to 28 people,
Write an inequality you could use to figure out how many buses will be needed, if x represents the number
of buses
Explain the steps you will use to solve the inequality,
Answer:
Step-by-step explanation:
C OF
The following table shows a portion of a three-year amortization schedule.
3 Year Amortization Schedule
Loan Amount or Principal S 11.940.00
Interest Rate on Loan
7.45%
Extra Payment to Principal $
Month Payment Principal Interest Balance
171 $ 371.13 S 327.92 S 43.21 S 6,632.16
18 5 371.13 S 329.96 41.17 S 6.302.20
19 $ 371.13 S 332 01 | $ 39 13 S 5.970.19
20 S
371.13 S 334.07 S 37.06S 5.636.12
21 S 371.13 S 336.14 S 34.99S 5.299.98
22 s 371.13 S 338.23S 32.90S 4.961.75
23 S
371.13 S 340.33S 30.80S 4.621.42
24 S
371.13 S 342.44S 28.69S 4.278.98
25 S 371.13 S 344.575 26.57 S 3.934 41
After two years, how much has been paid into interest?
a $4,628.14
b $1,246.10
C С
$978.96
d. $1,912.05
Hi
Answer:
b cz vc
Step-by-step explanation:
bv
The total amount of interest paid after two years is $1,246.15.
What is an amortization schedule?An amortization schedule is a table that shows the periodic payments, portions of interest and principal paid, and the loan balance. It is useful for financial managers to understand how much is remaining unpaid and the amount to record as the interest expense periodically.
Data and Calculations:Loan Amount or Principal = $11,940.00
Interest Rate on Loan = 7.45%
Extra Payment to Principal $0
Month Payment Principal Interest Balance
17 $371.13 $327.92 $43.21 $6,632.16
18 $371.13 $329.96 $41.17 $6,302.20
19 $371.13 $332.01 $39.13 $5,970.19
20 $371.13 $334.07 $37.06 $5,636.12
21 $371.13 $336.14 $34.99 $5,299.98
22 $371.13 $338.23 $32.90 $4,961.75
23 $371.13 $340.33 $30.80 $4,621.42
24 $371.13 $342.44 $28.69 $4,278.98
25 $371.13 $344.57 $26.57 $3,934 41
Full Amortization SchedulePeriod PV PMT Interest FV
1 $-11,939.87 $371.13 $-74.13 $11,642.86
2 $-11,642.86 $371.13 $-72.28 $11,344.02
3 $-11,344.02 $371.13 $-70.43 $11,043.31
4 $-11,043.31 $371.13 $-68.56 $10,740.74
5 $-10,740.74 $371.13 $-66.68 $10,436.30
6 $-10,436.30 $371.13 $-64.79 $10,129.96
7 $-10,129.96 $371.13 $-62.89 $9,821.72
8 $-9,821.72 $371.13 $-60.98 $9,511.57
9 $-9,511.57 $371.13 $-59.05 $9,199.49
10 $-9,199.49 $371.13 $-57.11 $8,885.47
11 $-8,885.47 $371.13 $-55.16 $8,569.50
12 $-8,569.50 $371.13 $-53.20 $8,251.58
Year #1 end
Total interest for the first year = $765.26
13 $-8,251.58 $371.13 $-51.23 $7,931.67
14 $-7,931.67 $371.13 $-49.24 $7,609.79
15 $-7,609.79 $371.13 $-47.24 $7,285.90
16 $-7,285.90 $371.13 $-45.23 $6,960.00
17 $-6,960.00 $371.13 $-43.21 $6,632.08
18 $-6,632.08 $371.13 $-41.17 $6,302.13
19 $-6,302.13 $371.13 $-39.13 $5,970.12
20 $-5,970.12 $371.13 $-37.06 $5,636.06
21 $-5,636.06 $371.13 $-34.99 $5,299.92
22 $-5,299.92 $371.13 $-32.90 $4,961.69
23 $-4,961.69 $371.13 $-30.80 $4,621.37
24 $-4,621.37 $371.13 $-28.69 $4,278.93
Year #2 end
Total interest for the second year = $480.89
Total interest after two years = $1,246.15 ($765.26 + $480.89)
Thus, the total amount of interest paid after two years is $1,246.15.
Learn more about calculating loan amortization balances at brainly.com/question/14511778
what is 286,713 rounded to the nearest ten thousand?
Answer:
290,000
Step-by-step explanation:
sorry if wrong
PLEASE HELP AND ILL literally GIVE 5$
Write the equation of the line that is parallel to the line y=2x+1 that passes through the point (-3, -2).
Answer:
Don't want your money but the answer would be y=2x+4
Step-by-step explanation:
Parallel lines have the same slope so keep the 2x and then 4 allows the line to go through (-3,-2)
What are the values of x, z, and y?
Answer and explanation please! <3
82+71=153
180-153=27=x
27=x
z=27
124+27=151
180-151=29
y=29