The maximum grazing area for the cow is approximately 53,343.08 square feet.
How to Find the maximum Grazing Area?The maximum grazing area for the cow can be found by imagining a circle with radius equal to the length of the rope (130 feet) centered at the corner of the barn where the cow is tethered. The grazing area is the portion of the circle that lies outside the barn.
Since the barn is 8 feet by 8 feet, it covers a square area of 64 square feet. The radius of the circle is 130 feet, so the area of the circle is π(130)^2 square feet.
To find the maximum grazing area, we need to subtract the area of the barn from the area of the circle.
Area of circle = π(130)^2 square feet = 53,407.08 square feet
Area of barn = 64 square feet
Maximum grazing area = Area of circle - Area of barn
= 53,407.08 - 64
= 53,343.08 square feet (rounded to two decimal places)
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What's the answer to this???????
The x-intercept represents:
"The number of hours the taxi was driven before running out of fuel"
What does the x-intercept represent?In standard notation, the variable x is the independent variable in the horizontal axis, here we can see that in the horizontal axis we are measuring the time (in hours) that the taxi was driving.
Then the x-intercept (the time when y = 0) is the number of hours until the fuel is down to zero, then the correct option is B i guess, but it should be worded as:
"The number of hours the taxi was driven before running out of fuel"
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Which of the following describes the graph shown?
The piecewise function graphed is defined as follows:
C)
y = 1/2x + 2, x ≤ -1.y = 1/2x² - 1, x > -1.What is a piecewise function?A piecewise function is a function that is defined by multiple equations, each of which applies to a specific interval or set of inputs. The equations are pieced together to form a single function that describes the behavior of the function over its entire domain.
The intervals for this problem are given as follows:
x ≤ -1.x > 1.For the first interval, we have a linear function with a slope of 1/2 and an intercept of 2, hence:
y = 1/2x + 2, x ≤ -1.
For the second interval, we have a quadratic function with a vertex of -1, hence:
y = 1/2x² - 1, x > -1.
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From a standard deck of 52 cards, in how many ways can 7 cards be drawn?
there are 133,784,560 ways to draw 7 cards from a standard deck of 52 cards.
How to solve the question?
The number of ways to draw 7 cards from a standard deck of 52 cards can be calculated using the combination formula, which is:
C(52, 7) = 52! / (7! * (52-7)!)
where "!" represents the factorial function.
To simplify this expression, we can use the property that n! / k! = n * (n-1) * (n-2) * ... * (n-k+1) for positive integers n and k such that k ≤ n.
Using this property, we can rewrite the above expression as:
C(52, 7) = (52 * 51 * 50 * 49 * 48 * 47 * 46) / (7 * 6 * 5 * 4 * 3 * 2 * 1)
Simplifying this expression, we get:
C(52, 7) = 133,784,560
Therefore, there are 133,784,560 ways to draw 7 cards from a standard deck of 52 cards.
To understand why this is the case, we can think of each draw as a separate event with no replacement. The first card can be drawn in 52 ways, the second card can be drawn in 51 ways (since one card has already been drawn), the third card can be drawn in 50 ways (since two cards have already been drawn), and so on. Therefore, the total number of ways to draw 7 cards is the product of the number of ways to draw each individual card, which is 52 * 51 * 50 * 49 * 48 * 47 * 46. However, since the order in which the cards are drawn does not matter, we need to divide by the number of ways to arrange 7 cards, which is 7 * 6 * 5 * 4 * 3 * 2 * 1 (i.e., 7 factorial). This gives us the final answer of 133,784,560.
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A 20 litre solution is 85% paint and 15% thinner. Five litres of thinner is added to this solution.
What percentage of the new solution is PAINT?
Answer: 35% of thinner will be in total after the five litres is added so 85%-25% is 60% Therefore ur answer is 60%
Step-by-step explanation:
A company that manufactures batteries used in electric cars is reporting that their newest model of battery has a mean
lifetime, μ, of 12 years. To test the company's claim, a competitor has selected 35 of these batteries at random. The mean
lifetime of the sample is 12.5 years. Suppose the population standard deviation of these lifetimes is known to be 3.5 years.
Is there enough evidence to reject the claim that the mean lifetime of the newest model is 12 years? Perform a hypothesis
test, using the 0.10 level of significance.
The conclusion of the given hypothesis is: we FAIL to reject the null hypothesis and conclude that there is not enough evidence to reject the claim that the mean lifetime of the newest model is 12 years
How to carry out Hypothesis Testing?The parameters given are:
Population mean: μ = 12
Sample mean: x' = 12.5
Population standard deviation; σ = 3.5
Sample size: n = 35
Let's define the hypotheses:
Null Hypothesis: H₀: μ = 12
Alternative Hypothesis: Hₐ: μ ≠ 12
Let us find the z-score from the formula:
z = (x' - μ)/(σ/√n)
z = (12.5 - 12)/(3.5/√35)
z = 0.845
The p-value from online p-value from z-score calculator using two tailed hypothesis and a significance level of 0.1 gives:
p-value = 0.398
The p-value is greater than the significance value and we FAIL to reject the null hypothesis and conclude that there is not enough evidence to reject the claim that the mean lifetime of the newest model is 12 years
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Find the surface area
Round to the nearest tenth
Which of the following is equivalent to the quantity two thirds end quantity to the power of 2 times x?
the quantity four thirds end quantity to the power of x
the quantity four sixths end quantity to the power of x
the quantity four ninths end quantity to the power of x
the quantity three halves end quantity to the power of x
The equivalent expressions is solved to give the quantity four ninths end quantity to the power of x. Option C
What is an algebraic expression?An algebraic expression can be described as an expression that is made up of terms, factors, coefficient, variables and constants.
These expressions are also composed of mathematical operations.
Also note that index forms are mathematical forms used to represent numbers too large or too small.
From the information given, we have that;
(2/3)²⁽ˣ⁾
expand the bracket, we get;
(2/3)²ˣ
Find the square of both the numerator and denominator, we get;
(4/9)ˣ
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4x4x4x5x5 (I’ve tried 4^3 x 5^2 and it’s not write)
Answer:
1600
Step-by-step explanation:
The answer you tried is equivalent.
r=−5sinθ+4θ
Which of the following types of symmetry is demonstrated in the equation above based on the three symmetry tests for polar equations?
θ=π/2
polar axis
pole
none
Answer: Correct answer is pie/2 or A
Step-by-step explanation:
r = -5sinθ + 4θ has symmetry with respect to the line θ = π/2.
To demonstrate this, we can apply the third symmetry test for polar equations:
Symmetry with respect to the line θ = π/2: Replace θ by π - θ and see if the equation remains the same. If it does, the equation has symmetry with respect to the line θ = π/2.
r = -5sin(π/2 - θ) + 4(π/2 - θ) = 5cosθ + 2π - 4θ
r = 5cosθ + 2π - 4θ is the same as the original equation, so there is symmetry with respect to the line θ = π/2.
Therefore, the correct answer is θ = π/2.
I need help with this
Answer: B
Step-by-step explanation: You can subtract 21 from 245 11 times but some will remain
HELPP PLEASE ANSWER :)brainless! In Urge
I'll give brainliest!
1. The value of Angle STR is 19°
2. The value of arc ST is 134°
What Is circle geometry?A circle is a special kind of ellipse in which the eccentricity is zero and the two foci are coincident.
Part of circle theorem states that: The angle in the same segment are equal.
1. Therefore the value of angle STR is calculated as;
= 180- ( 90+71)
= 180- 161
= 19°
2. The value of arc ST is calculated as;
Since arc SR = QR = 46°
representing the value of arc ST by x
therefore,
46+46+x+x = 360
92 +2x = 360
2x = 360-92
2x = 268
divide both sides by 2
x = 268/2
x = 134°
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There are 12 cats and 7 dogs at the humane society A. In how many ways can the first costumer randomly choose a cat?
Answer: C
Step-by-step explanation: C
Mohawk Skywalkers are iron workers who helped build skyscrapers, bridges, and other structures for over 120 years. Which of the following is a statistical question about the Mohawk Skywalkers?
A. How many construction sites has each of the current Mohawk Skywalkers worked on in their lifetime?
B. How many New York City skyscrapers were built with the help of Mohawk Skywalkers?
C. How many generations of the Martin family have worked as Mohawk Skywalkers?
D. How many Mohawk Skywalkers helped build the Empire State Building?
How many construction sites has each of the current Mohawk Skywalkers worked on in their lifetime? is a statistical question about the Mohawk Skywalkers. Option A.
What are statistical questions?A statistical question is a question that can be answered by collecting and analyzing data. It involves variability and asks about the distribution of a population, rather than just a single value or specific instance.
Option A is a statistical question because it asks about the variability of the number of construction sites each of the current Mohawk Skywalkers worked on in their lifetime.
Option B is also a statistical question as it asks about the distribution of New York City skyscrapers built with the help of Mohawk Skywalkers.
Option C is not a statistical question because it asks for a specific value, the number of generations of the Martin family who have worked as Mohawk Skywalkers, which does not involve variability or a population.
Option D is not a statistical question as it asks for a specific value, the number of Mohawk Skywalkers who helped build the Empire State Building, which does not involve variability or a population.
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pls help thank u i dont no what im doing
Answer:5,4
Step-by-step explanation:
M5|L11 Kate wants to buy grass seed to cover her whole lawn, except for the pool. The pool is 7 - m by 2 3 m. Find the area the grass seed needs to cover. LO What's the Area? Solve on paper. Then check your work on Zearn. 4) 5 11 3 4 pool Moro ch
The area the grass seed needs to cover is 7,425 square meters.
What is the total area of Marcos's lawn excluding the pool?To find the total area of the lawn excluding the pool, we first need to calculate the area of the pool. Using the formula for the area of a rectangle, we multiply the length and width of the pool together to get:
= 7.5 m x 3.25 m
= 24.375 square meters
Next, we can find the total area of the lawn by subtracting the area of the pool from the total area of the rectangle formed by the lawn:
= 50 m x 150 m
= 7,500 square meters
So, the area the grass seed needs to cover is:
= 7,500 square meters - 24.375 square meters
= 7,425 square meters.
Full question" Marcos wants to buy grass seed to cover his whole lawn, except for the pool. The pool is 7 1/2 m by 3 1/4 m. Find the area the grass seed needs to cover. The dimensions of the lawn are 50 m x 150 m.
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Use the definition of Ax
to write the vector equation as a matrix equation.
The vector equation written as a matrix equation is enter your response here
.
If the vector is drawn from (0,0) to (5, -1), the outcome vector is drawn.
Describe vector?A mathematical concept known as a vector has both a magnitude and a direction. Physical quantities like force, velocity, and acceleration are represented by it. In the physical sciences, engineering, and computer graphics, vectors are frequently employed. They can also be used to represent abstract concepts like magnitude, directions, and other things.
Here in the question,
(0, 0) is the beginning position. There should be an arrow above each vector name listed below.
Ink a line beginning at (3, -1). A vector has an origin of (0,0) and a destination of (3, -1).
Put a line through points (2,2). The vector B has a start point of (0, 0) and an end point of (2, 2).
These two vectors add up to: a + b = (3-1) + (2,2) = (5,1) when combined.
Whatever order they are in, b + a = (2,2) + (3, -1) = (5,1) regardless.
Either way, the same conclusion is reached.
The terminal point of A + B is at (5, 1).
If the vector is drawn from (0,0) to (5, -1), the outcome vector is drawn.
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I need help with this Regression question!
A quadratic model for the data is y = -0.0076x² + 0.6915x + 14.711.
The fuel economy at 80 mph is 21.39.
How to determine the linear regression equation and correlation coefficient?In this scenario, the speed (x) would be plotted on the x-axis of the scatter plot while the fuel economy (y) would be plotted on the x-axis of the scatter plot.
By critically observing the scatter plot (see attachment) which models the relationship between the speed (x) and fuel economy (y), a quadratic model for the line of best fit is given by:
y = -0.0076x² + 0.6915x + 14.711
When the speed (x) = 80 mph, the fuel economy (y) is given by;
y = -0.0076(80)² + 0.6915(80) + 14.711
y = 21.39
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Write as a logarithm with a base of 4. -4
Answer:
4 cannot be written as a logarithm with a base of 4. A logarithm is an exponent that tells us how many times we need to multiply a base by itself to get a certain number. For example, log2(8) = 3 because 2^3 = 8. We can write this as an equation: logb(x) = y means b^y = x.
-4 cannot be written as a logarithm with a base of 4 because there is no exponent that can make 4 equal to -4. In other words, there is no y such that 4^y = -4. This is because any positive number raised to any power will always be positive. Therefore, log4(-4) is undefined or does not exist.
Therefore, -4 cannot be written as a logarithm with a base of 4.
Step-by-step explanation:
y= 3 ( x − 1 ) ^2 − 8 in standared form
y = 3(x-1)^2 - 8
y = 3(x^2 - 2x + 1) - 8 [Using the identity (a-b)^2 = a^2 - 2ab + b^2]
y = 3x^2 - 6x + 3 - 8 [Distributing the 3]
y = 3x^2 - 6x - 5 [Simplifying]
*IG:whis.sama_ent
Answer:
y=3x^(2)-6x-5
[tex]y=3x^2 -6x-5[/tex]
hope this helps ;)
If the width of a rectangle with perimeter P is 6 units, what is its length?
If the width of a rectangle with perimeter P is 6 units, its length would be equal to L = P/2 - 6.
How to calculate the perimeter of a rectangle?In Mathematics and Geometry, the perimeter of a rectangle can be calculated by using this mathematical equation (formula);
P = 2(L + W)
Where:
P represent the perimeter of a rectangle.W represent the width of a rectangle.L represent the length of a rectangle.By substituting the given side lengths into the formula for the perimeter of a rectangle, we have the following;
P = 2(L + 6)
P = 2L + 12
P - 12 = 2L
L = (P - 12)/2
L = P/2 - 6.
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If Hazel buys 0.9 pounds of coffee ice cream and 3.4 pounds of cherry ice cream, how much will she spend?
Answer:
what brand
Step-by-step explanation:
Solve the system of equations using substitution. y = 3x y = 6x + 3 (2, 15) (1, 3) (−1, −3) (−2, −6)
We are given the system of equations:
y = 3x
y = 6x + 3
We can use substitution to solve this system. Since both equations are equal to y, we can set them equal to each other:
3x = 6x + 3
Subtracting 3x from both sides, we get:
0 = 3x + 3
Subtracting 3 from both sides, we get:
-3 = 3x
Dividing both sides by 3, we get:
x = -1
Now that we know x, we can use either equation to find y. Let's use the first equation:
y = 3x = 3(-1) = -3
Therefore, the solution to the system of equations is (-1, -3).
To check our solution, we can substitute these values back into both equations:
y = 3x gives us -3 = 3(-1), which is true
y = 6x + 3 gives us -3 = 6(-1) + 3, which is also true
Therefore, our solution is correct.
We can also plug in the other given points to check that they do not satisfy both equations, which means they are not solutions to the system.
100 Points! Two multiple choice algebra questions. Photo attached. Thank you!
State the domain and range of the function.
Stats the end behavior of the function.
Answer:
7.D
8.A
Step-by-step explanation:
For the function f(x) = √x+2+5:
(D) D= {x|x≥2}, R= {y|y≥5}
The domain is restricted to x values greater than or equal to 2 because the function contains the square root of x+2, which cannot be negative. The range starts at y = 5 because the lowest possible output of the function is √2+2+5 = 5.
(A) f(x)+∞o as x→ +∞o; f(x) +∞ as x――∞
As x approaches positive infinity, the output of the function approaches infinity as well. As x approaches negative infinity, the function is undefined since it involves taking the square root of negative numbers. However, the limit of the function as x approaches negative infinity from the right is positive infinity.
You pick a card at random.
4567
What is P(odd or less than 5)?
Answer:
9/13
Step-by-step explanation:
P(odd or less than 5) = number of odd cards + number of cards less than 5 / total number of cards
P(odd or less than 5) = (20 + 16) / 52
P(odd or less than 5) = 36 / 52
P(odd or less than 5) = 9 / 13
Therefore, the probability of picking an odd card or a card less than 5.
Answer is 9/13
please help me answer this
The ice rink is 14.42 units away from the origin and other solutions are added below
Completing the table of valuesFirst, we have the library at (7,8), which is 7 units to the right of the origin and 8 units up from the origin.
Next, we have the market at (3,6), which is 4 units to the left of the library (7-4=3) and 2 units down from the library (8-2=6).
Then, we have the bank at (3,8), which has the same x-coordinate as the market (3) and a y-coordinate of 8.
We have the school at (10,8), which has the same y-coordinate as the bank (8) and an x-coordinate of 10.
The pool is located at (7,3), which is 5 units down from the school (8-5=3) and 3 units to the left from the school (10-3=7).
Finally, the park is located at (7,1), which has the same x-coordinate as the pool (7) and a y-coordinate of 1.
The completed table is:
Point Ordered Pair (x, y)
Library (7,8)
Market (3,6)
Bank (3,8)
School (10,8)
Pool (7,3)
Park (7,1)
Bao's movements and distancesBao's new location can be found by moving 5 blocks down from his current location of (3,13) and then 2 blocks right.
This gives us the new coordinates of (5,8) for Boo.
The new location is 5 units right and 8 units up of the origin
To get to the baseball diamond, he traveled 3 blocks to the right from his starting point (3 - 3 = 0) and 8 blocks down (15 - 8 = 7), which gives us the new coordinates of (3, 15) for the baseball diamond.
Bao's starting point was (0, 7).
Bao's starting point can be found by moving 5 blocks to the left from his current location of (14, 13) and then 10 blocks down.
This gives us the new coordinates of (9,3) for Bao's starting point.
The distance between the ice rink and the origin can be found using the distance formula:
d = √((x2 - x1)^2 + (y2 - y1)^2)
In this case, we have:
d = √((12 - 0)^2 + (8 - 0)^2) = √(144 + 64) = √(208) ≈ 14.42
So the ice rink is approximately 14.42 units away from the origin.
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Please HELPP IM IN URGE
I'll Give BRAINLIEST
The measure of arc angle QT is determined as 142 ⁰.
The measure of m∠STR is determined as 23⁰.
What is the measure of arc angle QT?The measure of angle subtended by the arc QT is calculated by applying the following formula.
Based on the angle of intersecting chord theorem, we will have the following equation.
The measure of m∠STR is calculated as;
m∠STR = ¹/₂( arc SR )
m∠STR = ¹/₂ x 46⁰
m∠STR = 23⁰
The measure of arc QT is calculated as;
m∠QST = ¹/₂( arc QT )
arc QT = 2 (m∠QST)
arc QT = 2 x 71⁰
arc QT = 142⁰
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Jenny mixed 4 kg of mixed nuts containing 16% peanuts with 12 kg of mixed nuts containing 40% peanuts. What percent of the new mixture if peanuts?
A. 34%
B. 17%
C. 13%
The new mixture contains 34% peanuts.
How to calculate percent of the new mixture if peanutsUsing a weighted average approach.
Let x be the percentage of peanuts in the new mixture. Then we can set up the following equation:
(0.16)(4) + (0.40)(12) = x(4 + 12)
simplifying the equation, we get:
0.64 + 4.8 = 16x
5.44 = 16x
x = 0.34 or 34%
Therefore, the new mixture contains 34% peanuts.
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EASY ALGEBRA 2!! THANKS FOR HELPING
a. The exponential model representing the situation is S (t) = 6.26 * [tex]1.04^{t}[/tex]. The number of subscribers in 2016 is 7.32 billion.
b. In the year 2015, the number of cell phone subscribers were about 7 billion.
The solution has been obtained by using the arithmetic operations.
What are arithmetic operations?
Any real number may be explained using the four basic operations, also referred to as "arithmetic operations." In mathematics, operations like division, multiplication, addition, and subtraction come before operations like quotient, product, sum, and difference.
a. Since, during next 5 years there is increase by 4% so, we get the base using the addition operation as:
1 + 4% = 1.04
The exponential model comes out to be
y = 6.26 * [tex]1.04^{t}[/tex]
Now, the number of cell phone subscribers in 2016 is:
y = 6.26 * [tex]1.04^{4}[/tex] (This is because t = 4)
y = 7.32 billion
b. We are given y = 7 billion.
So, we get
⇒ 7 = 6.26 * [tex]1.04^{t}[/tex]
⇒ 1.12 = [tex]1.04^{t}[/tex] (Using the division operation)
⇒ t = 2.8
So, in 2015, the number of cell phone subscribers were about 7 billion.
Hence, the required solutions have been obtained.
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Twice the difference of a number and three is the sum of that number and four
Answer:
Step-by-step explanation:
Answer:
-20
Step-by-step explanation:
We can set up an equations with the conditions we are given. Let's use x for the missing number.
2(x-4)=3(x+4)
2x-8=3x+12
-20=xWe can set up an equations with the conditions we are given. Let's use x for the missing number.
2(x-4)=3(x+4)
2x-8=3x+12
-20=x
HELP ASAP!!
A company sends every item of mail by second class post.
Each item of mail is either a letter or a packet.
The tables show information about the cost of sending a letter by second class post and the cost of sending a packet by second class post.
Letter
Packet
Weight range
Second Class
Weight range
Second Class
0 – 100 g
61p
0 – 100 g
£1.17
101 – 250 g
£1.51
251 – 500 g
£1.95
501 – 750 g
£2.36
751 – 1000 g
£2.84
Worked example
The company sent 1225 items by second class post.
The ratio of the number of letters sent to the number of packets sent was 8:27
fraction numerator 2 over denominator 7 end fractionof the packets sent were in the weight range 0 – 100 g.
The other packets sent were in the weight range 101 – 250 g.
Work out the total cost of sending the 1225 items by second class post.
Calculation
The total number of items sent was 1225, to proportion the items according to the ratio we first need to work out how many items there are in 1 part of the ratio. So in this example the ratio is 8:27 so there are a total of 8 + 27 = 35 parts.
So, dividing 1225 by 35 will give us the number of items per part of the ratio
1225 over 35 equals 35
We can now multiply each part of the ratio by the number of items per part to give us the number of letters and packets
letters = 35 space cross times space 8 space equals
Total Letters =
Answer for part 1
packets = 35 space cross times space 27 space equals
Total Packets =
Answer for part 2
For the next part of the question we need to work out the total cost of sending all the items. We can easily work out the cost of the letters, as we know how many we have and that the cost is 61p
How much does it cost to send all the letters?
Cost to send all letters = £
Answer for part 3
We know that the ratio of small to large packets is 2:7, so to calculate the number of small packets we need to first work out the number of parts of the ratio adding 2 and 7 together
This gives us 2+7=9
We can now multiply each part of the ratio by the number of items per part to give us the number of small and large packets
For small packets fraction numerator 2 over denominator 9 end fraction
No. packets 0 - 100g =
Answer for part 4
For large packets fraction numerator 7 over denominator 9 end fraction
No. packets 101 - 250g =
Answer for part 5
We can now use these figures to calculate the cost for each type of packet
Cost of packets 0 - 100g =£
Answer for part 6
Cost of packets 101 - 250g =£
Answer for part 7
And we can now calculate the total cost of letters and packets
Total cost of letters and packets =£
Answer for part 8
Tje number of items in the ratio 8:27, proportioned according to the total number of items sent (1225), is 280 items in the 8 part and 945 items in the 27 part.
How to calculate the valueTo find out how many items there are in 1 part of the ratio, we need to add together the two parts of the ratio. In this case, 8+27 = 35.
To proportion the items according to the ratio, we need to divide the total number of items (1225) by the number of parts in the ratio (35).
This gives us:
1 part of the ratio = 1225 / 35 = 35
To find out how many items there are in each part of the ratio, we need to multiply this value by the corresponding part of the ratio.
For the part that corresponds to 8, we have:
8 parts of the ratio = 8 x 35 = 280 items
For the part that corresponds to 27, we have:
27 parts of the ratio = 27 x 35 = 945 items
Therefore, the number of items in the ratio 8:27, proportioned according to the total number of items sent (1225), is 280 items in the 8 part and 945 items in the 27 part.
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