If an article has ₹300 marked price and 5% discount on it then a customer has to pay a cash payment of Rs. 285 while paying in cash.
Discount means a reduction in price of goods offered by shopkeeper at marked price. Discount = List Price or marked price - Selling Price. The formula used to calculate the discount rate written as : Discount % = (Marked price - selling price)/marked Price) × 100
where, marked price--> the labelled or tagged price on item
selling price --> the price at which item sold without any off or reduction
discount % --> reduction in marked price of item as percentage form.
We have, marked price = Rs. 300
Discount = 5%
We have to determine the selling price. Let the selling price or amount pay by customer in cash be 'Rs. x'. Using the discount % formula, Discount % = ((Marked price - selling price)/marked Price) × 100
Substitute all known values in above
=> \(5 = \frac{ 300 - x }{300 } \times 100\)
=> 15 = 300 - x
=> x = 300 - 15 = 285
Hence, required value is Rs. 285.
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Liam's bookstore sold 404040 notebooks and 202020 newspapers for a total of \$130$130dollar sign, 130. A day later, the bookstore sold 888 notebooks and 444 newspapers at the same prices, for a total of \$28$28dollar sign, 28. How much does a notebook and a newspaper cost at Liam's bookstore
By the given condition we find that to calculate the cost of the notebooks and newspaper is impossible, from the given condition we get only no solutions.
Let the cost of the notebooks and newspaper in Liam's bookstore be x and y respectively.
According to the given question.
Liam's bookstore sold total 40notesbooks and 20 newspater for $130.
⇒ 40x + 20y = 130
⇒ 20(2x + y) = 130
⇒ 2x + y = 6.5 ...(i)
And the next day,
The bookstore sold 8 notebooks and 4 newspapers for $130.
⇒ 8x + 4y = 28
⇒ 4(2x + y ) = 28
⇒ 2x + y = 7 ...(ii)
Since, if we see the two equations i and ii we find that the given conditions provide no solutions.
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In Exercises 17-22, determine which sets of vectors are orthonor- mal. If a set is only orthogonal, normalize the vectors to produce an orthonormal set. 1/3 -1/2
1/3 0
1/3 1/2
the set of vectors (v1, v2, v3) is orthonormal.To determine if the set of vectors is orthonormal, we need to check two conditions: orthogonality and normalization.
Let's calculate the dot products between each pair of vectors:
(1/3, -1/2) ⋅ (1/3, 0) = (1/3)(1/3) + (-1/2)(0) = 1/9
(1/3, -1/2) ⋅ (1/3, 1/2) = (1/3)(1/3) + (-1/2)(1/2) = 1/9 - 1/4 = -1/36
(1/3, 0) ⋅ (1/3, 1/2) = (1/3)(1/3) + (0)(1/2) = 1/9
From these calculations, we can see that the vectors are not orthogonal since the dot prodproductsucts are not all zero.
To normalize the vectors, we divide each vector by its magnitude:
v1 = (1/3, -1/2) / sqrt((1/3)^2 + (-1/2)^2) = (1/3, -1/2) / sqrt(1/9 + 1/4)
v1 = (1/3, -1/2) / sqrt(4/36 + 9/36) = (1/3, -1/2) / sqrt(13/36) = (1/3, -1/2) / (sqrt(13)/6)
v1 = (2/3sqrt(13), -3/2sqrt(13))
v2 = (1/3, 0) / sqrt((1/3)^2 + 0^2) = (1/3, 0) / sqrt(1/9) = (1/3, 0) / (1/3)
v2 = (1, 0)
v3 = (1/3, 1/2) / sqrt((1/3)^2 + (1/2)^2) = (1/3, 1/2) / sqrt(1/9 + 1/4)
v3 = (1/3, 1/2) / sqrt(4/36 + 9/36) = (1/3, 1/2) / sqrt(13/36) = (1/3, 1/2) / (sqrt(13)/6)
v3 = (2/3sqrt(13), 3/2sqrt(13))
After normalizing the vectors, we have:
v1 = (2/3sqrt(13), -3/2sqrt(13))
v2 = (1, 0)
v3 = (2/3sqrt(13), 3/2sqrt(13))
Therefore, the set of vectors (v1, v2, v3) is orthonormal.
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A pole that is 3.2 m tall casts a shadow that is 1.69 m long. At the same time, a nearby tower casts a shadow that is 38.5 m long. How tall is the tower? Round your answer to the nearest meter
Answer:
Explanation:
Given:
Height of the pole = 3.2m
Shadow of the pole= 1.69m
Shadow of the tower=38.5 m
Height of the tower = ?
Based on the given information, we can create similar triangles:
To find the height of the tower, we use ratio:
\(\begin{gathered} \frac{3.2\text{ m}}{1.69\text{ m}}=\frac{x}{38.5\text{ m}} \\ \text{Simplify and rearrange} \\ x=\frac{(38.5)(3.2)}{1.69} \\ \text{Calculate} \\ x=\frac{123.2}{1.69} \\ x=72.90=73m \end{gathered}\)Therefore, the height of the tower is 73 meters.
Joshua has 30 trading cards. He adds 20 cards to his collection each week.
Mackenzie has 45 trading cards and adds 20 cards to her collection each week.
How many cards will each person have after 6 weeks?
Answer:
Joshua will have 150 cards.
Mackenzie will have 165 cards.
Solve the math equation here
.Answer only the second question and show steps
Answer:
Step-by-step explanation:
Perimeter is found by adding all the sides of a figure together. We have 2 lengths that are 10.5 long, and 2 widths that are 8.75 wide. Adding these together:
10.5 + 10.5 + 8.75 + 8.75 = 38.5 cm
this answer for # 2 question
(-8)+(-19) i will give brainllest
Answer:
-27
Step-by-step explanation:
Answer:
-27 maybeeeeeeeeeeeee
Thoriso can ither walk to school at 5 km / h or rides her bicycle at 5 km/ h if she rides her bicycle it , it takes her 10 minutes to get to school
It takes 9.6 minutes for Thoriso to get to school if she walks to school.
Given:
Thoriso can walk at a speed of 5 km/h.
Thoriso can ride her bicycle at a speed of 5 km/h.
The time taken by Thoriso to get to school by Bicycle = 10 minutes
To Find:
The time taken by Thoriso to get to school by walking.
Solution:
→ Thoriso can ride her bicycle at a speed of 5 km/h.
The time taken by Thoriso to get to school by Bicycle = 10 min = 1/6 hour
∵ Distance = Speed × Time
∴ The distance that Thoriso need to cover to reach school = 5 × 1/6
∴ The distance that Thoriso need to cover to reach school = 0.8 km
→ Thoriso can walk at a speed of 5 km/h.
∴ The time taken by Thoriso to get to school by Walking = 0.8/5 = 0.16 Hr
∴ The time taken by Thoriso to get to school by Walking = 0.16 Hr = 9.6 min
Therefore the time taken by Thoriso to get to school by Walking comes out to be equal to 9.6 minutes.
sovle for x , no links
Answer:
inequality form
\(x \geqslant - 3\)
please help with this, i will give epic reward also
Answer:
3
Step-by-step explanation:
It would be 3 because the numbers with the variables are the same which is 2. Then if we would substitute the variables with the coridanates the equation would be 2x4 + 2x-2 = 12. Then if you solve the equation using pemdas you would get 4. 4 would not equal 12 which means the equation is not true. So 3 cannot use this set of numbers but the rest can.
The time series regression model contains a variable W and a regression equation of y = 200 + W + 2W2 to forecast future values. If W represents a time period, what is the forecast for time period 2 and the forecast error if the actual value for time period 2 is 100? Select the best answer.
forecast value = 210; forecast error is 110
forecast value = 210; forecast error is -110
forecast value = 210; forecast error is 0
forecast value = 100; forecast error is 0
The forecast value for time period 2 is 210, and the forecast error is -110 when the actual value is 100. Option B
To calculate the forecast value for time period 2, we substitute W = 2 into the regression equation:
y = 200 + W + 2W^2
= 200 + 2 + 2(2^2)
= 200 + 2 + 2(4)
= 200 + 2 + 8
= 210
Therefore, the forecast value for time period 2 is 210.
To calculate the forecast error, we compare the forecasted value with the actual value for time period 2. Given that the actual value is 100, the forecast error can be calculated as the difference between the actual value and the forecast value:
Forecast error = Actual value - Forecast value
= 100 - 210
= -110
Hence, the forecast error is -110.
Therefore, the correct answer is:
Forecast value = 210; forecast error is -110. So Option B is correct.
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answer. ill give brainliest to whoever answers first correctly
Answer:
∠ W = 30°
Step-by-step explanation:
using the cosine ratio in the right triangle
cos W = \(\frac{adjacent}{hypotenuse}\) = \(\frac{WY}{WX}\) = \(\frac{2\sqrt{21} }{4\sqrt{7} }\) = \(\frac{1}{2}\) \(\sqrt{\frac{21}{7} }\) = \(\frac{\sqrt{3} }{2}\) , then
∠ W = \(cos^{-1}\) ( \(\frac{\sqrt{3} }{2}\) ) = 30°
a hand of 14 cards is dealt from a well-shuffled standard 52-card deck of cards. what is the probability that the hand contains 4 jacks?
The probability that the hand contains 4 jacks is solved to be
0.003697
How to solve the probabilityProbability is solved using the formula
= required outcome / possible outcome
The required outcome
= number of ways of picking 4 jacks * number of ways of 10 cards from 48
= ⁴C₄ * ⁴⁸C₁₀
= 1 * 6540715896
= 6540715896
The possible outcome
= number of ways of picking 14 card from possible 52 cards
= ⁵²C₁₄
= 1.768966345 * 10¹²
The probability
= required outcome / possible outcome
= 6540715896 / 1.768966345 * 10¹²
= 11 / 2975
= 0.00369747
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a function of x consists of following ordered pais of them form (x, y). Four of the ordered pairs are shown below:
(-2, 7), (0, 3), (1, -4), (5,-2).
Which could be the 5th ordered pair if it were to remain a function?
Answer:
C
Step-by-step explanation:
It has to be C because other wise an x value would be repeated. If an x value is repeated it is a relation not a function.
suppose we want to choose 5 colors, without replacement, from 15 distinct colors (a) how many ways can this be done, if the order of the choices is not relevant? (b) how many ways can this be done, if the order of the choices is relevant?
(a) The number of ways to choose 5 colors without replacement from 15 distinct colors, where the order of the choices is not relevant, is given by the combination formula. This is denoted as "15 choose 5," or 15C5, which is equal to 3,003.
(b) If the order of the choices is relevant, then the number of ways to choose 5 colors without replacement from 15 distinct colors is given by the permutation formula. This is denoted as "15 permute 5," or 15P5, which is equal to 3,003,600.
In part (a), we use the combination formula because we want to know the number of ways to choose 5 colors from 15 distinct colors without regard to the order of the choices. This formula is given by nCr = n!/(r!(n-r)!), where n is the number of items to choose from, and r is the number of items to choose. In this case, n = 15 and r = 5, so we have 15C5 = 15!/(5!(15-5)!) = 3,003.
In part (b), we use the permutation formula because we want to know the number of ways to choose 5 colors from 15 distinct colors, where the order of the choices matters. This formula is given by nPr = n!/(n-r)!, where n is the number of items to choose from, and r is the number of items to choose. In this case, n = 15 and r = 5, so we have 15P5 = 15!/10! = 3,003,600.
Overall, the key difference between part (a) and part (b) is whether or not the order of the choices matters. If the order doesn't matter, we use the combination formula (nCr), and if the order does matter, we use the permutation formula (nPr).
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another easy question pls answer
Answer:
22.5 degrees and 67.5 degrees
Step-by-step explanation:
complementary angles add up to 90°
x + 3x = 90°
4x = 90
90/4 = x
x = 22.5
The first angle is 22.5
The second angle is 3 times as much
22.5 x 3 = 67.5
If my answer is incorrect, pls correct me!
If you like my answer and explanation, mark me as brainliest!
-Chetan K
Correct answers only please!
Quincy has $6,000 in a savings account that earns 4% interest, compounded annually.
To the nearest cent, how much interest will he earn in 5 years?
Use the formula B = p(1 + r)t, where B is the balance (final amount), p is the principal (starting amount), r is the interest rate expressed as a decimal, and t is the time in years.
Answer:
A = $ 7,299.92
A = P + I where
P (principal) = $ 6,000.00
I (interest) = $ 1,299.92
Step-by-step explanation:
A = P(1 + r/n)^nt
Where:
A = Accrued Amount (principal + interest)
P = Principal Amount
I = Interest Amount
R = Annual Nominal Interest Rate in percent
r = Annual Nominal Interest Rate as a decimal
r = R/100
t = Time Involved in years, 0.5 years is calculated as 6 months, etc.
n = number of compounding periods per unit t; at the END of each period
f(x) = -x^2 + 5x – 2
Find f(-4)
Answer:
2
Step-by-step explanation:
if f(4), than -4^2=-16
5(4)=20
-16+20-2=2
A hospital medical unit has 50 beds. During May, the unit provided 1,420 days of service. What was the average daily census for the medical unit in May
If a hospital medical unit has 50 beds and the unit provided 1,420 days of service, the average daily census for the medical unit in May is 28.4.
To find the average daily census for a medical unit in May, we divide the total number of days of service provided by the number of beds in the unit. Here's how we do it:
According to the question, Total number of beds = 50 and Total number of days of service = 1,420
Average daily census = Total number of days of service / Total number of beds
Average daily census = 1,420/50
Average daily census = 28.4
Therefore, the average daily census for the medical unit in May is 28.4.
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1. Find the area of the right triangle below.
Answer:
13.32cm squared
Step-by-step explanation:
Area of triangle is B X H X0.5
Look at the triangles shown below.
D
a
b
Y
P
4 M
What is the value of b?
9
6
2v13
3/13
O 3,14
Answer:
Variant c
Step-by-step explanation:
c²=4*9
c=6
You can apply phyphagor
b²=6²+9²=36+81=117
\(3 \sqrt{13} \)
What does 4.3 round to
Answer:
4
Step-by-step explanation:
Miguel bought 7 pounds of apples for $.78 per pound and pay for them with a $10 bill how much did you get back and change
A principal was interested in the number of hours slept per night by 14-year-olds in a particular town. She gathered data from a random sample of ten 14-year-olds from a local youth group in the town and wanted to create an appropriate graphical representation for the data.
Which graphical representation would be best for her data?
Stem-and-leaf plot
Histogram
Circle graph
Bar graph
Answer:d
Step-by-step explanation:
6p + 3p + 3
it needs to be simplified !!
the answer is:
9p = -3
p = -1/3
A 7x1 board is completely covered by mx1 tiles without overlap; each tile may cover any number of consecutive squares, and each tile lies completely on the board. Each tile is either red, blue, or green. Let N be the number of tilings of the 7x1 board in which all three colors are used at least once. For example, a 1x1 red tile followed by a 2x1 green tile, a 1x1 green tile, a 2x1 blue tile, and a 1x1 green tile is a valid tiling. Note that if the 2x1 blue tile is replaced by two 1x1 blue tiles, this results in a different tiling. Find the remainder when N is divided by 1000.
The remainder when N is divided by 1000 is 106.
What is the Principle of Inclusion-Exclusion?The Principle of Inclusion-Exclusion, often known as PIE, offers a method/formula for organizing information about the size of each set, the number of elements in the union of a given set of sets, and the size of all potential set intersections.
From the question,
First, we think about all the possible divisions of the 7×1 board. Since we require at least one tile of each color, we exclude the cases of just one or two pieces.
Three pieces = 5+1+1 , 4+2+1 , 4+1+2 etc (6C2) = 15 ways
Four pieces = 6C3 = 20
Five pieces = 6C4 = 15
Six pieces = 6C5 = 6
Seven pieces =6C6 = 1
Now, we apply the Principle of Inclusion-Exclusion to consider how many ways to color them:
Three pieces : 3³ - 3 × 2³ + 3 = 6
Four pieces: 3⁴ - 3 × 2⁴ + 3 = 36
Five pieces : 3⁵ - 3 × 2⁵ + 3 = 150
Six pieces : 3⁶ - 3 × 2⁶ + 3 = 540
Seven pieces : 3⁷ - 3 × 2⁷ + 3 = 1806
Adding them together, we get
15×6 + 20×36 + 15×150 + 6×540 + 1×1806 = 8106
Hence, the remainder when it is divided by 1000 is 106.
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Answer:
106
Step-by-step explanation:
I generally need help
Answer:
24 units²
Step-by-step explanation:
4(12)/2=24
need help on b already done a
5/8(16d+24)=6(d-1)+1
To solve this equation, we need to distribute the 5/8 to the terms inside the parentheses. The solution to the equation is d = -5.
5/8(16d+24) = (5/8)(16d) + (5/8)(24)
Simplifying this expression, we get:
10d + 15 = 6d - 5
Now we can solve for d by isolating the variable on one side of the equation. First, we'll subtract 6d from both sides:
4d + 15 = -5
Next, we'll subtract 15 from both sides:
4d = -20
Finally, we'll divide both sides by 4:
d = -5
Therefore, the solution to the equation 5/8(16d+24)=6(d-1)+1 is d = -5.
5/8(16d+24)=6(d-1)+1. Here's a step-by-step explanation:
1. First, distribute 5/8 to both terms inside the parentheses on the left side:
(5/8 * 16d) + (5/8 * 24) = 6(d - 1) + 1
2. Simplify the terms on the left side:
(10d) + (15) = 6(d - 1) + 1
3. Next, distribute 6 to both terms inside the parentheses on the right side:
10d + 15 = 6d - 6 + 1
4. Simplify the terms on the right side:
10d + 15 = 6d - 5
5. Now, move all terms with 'd' to the left side and constants to the right side by subtracting 6d from both sides and subtracting 15 from both sides:
10d - 6d = -5 - 15
6. Simplify both sides of the equation:
4d = -20
7. Finally, solve for 'd' by dividing both sides by 4:
d = -5
So, the solution to the equation is d = -5.
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(cpc) the acceptable weight of the product is between 7.40 kg and 8.60 kg. samples collected from manufaturing indicate that the population mean is 8.00 kg. calculate the standard deviation of the process if the manufacturer wants to implement six sigma quality and meet the design specification.
0.40824 kg.
To calculate the standard deviation of the process if the manufacturer wants to implement six sigma quality and meet the design specification, you must use the population mean (8.00 kg) and the acceptable weight range of the product (7.40 kg - 8.60 kg).
Using the formula for population standard deviation, you can calculate the standard deviation as follows:
σ = √((8.60 - 8.00)2 + (7.40 - 8.00)2) / 2
= 0.40824
Therefore, the standard deviation for the process to meet the design specification with six sigma quality is 0.40824 kg.
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