Answers
Answer:
25°
Step-by-step explanation:
look at the picture, that's the ans
Answer:
x = 25.4
Step-by-step explanation:
the exterior angle of a triangle is equal to the sum of the 2 opposite interior angles.
139° is an exterior angle of the triangle, then
5x - 25 + 37 = 139
5x + 12 = 139 ( subtract 12 from both sides )
5x = 127 ( divide both sides by 5 )
x = 25.4
Related Questions
Isabella is conducting an experiment with a 12 sided dice. The sample space is 1 through 12. What is the percent probability that Isabella will roll a 14?
Responses
20
20
0
0
10
10
15
Answers
The percent probability that Isabella will roll a 14 is 0%, since the dice she is using has a sample space of 1 through 12 and there is no 14 on the dice. Therefore, the probability of her rolling a 14 is 0%.
The probability of Isabella rolling a 14 with a 12-sided dice is 0%. This is because the sample space of the dice is 1 through 12, and there is no 14 on the dice. In order to calculate the probability, you would need to take the number of possible outcomes (the sample space) and divide it by the number of outcomes you are looking for. In this case, the sample space is 12 and the outcome being searched for is 1, giving you 12 divided by 1 which is 0. This means that the probability of Isabella rolling a 14 is 0%. This is because the sample space does not contain a 14, thus making it impossible for Isabella to roll a 14.
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ive tried many times on this but stilll wasnt sure
Answers
Hi there, here's your answer:
Given two trapeziums, ABCD and WXYZ, where ABCD ~ WXYZ.
To find:
Value of v.
Solution:
We see that 2 sides are equal for both the trapeziums and it appears that
when comparing these sides, the bigger sides which are equal are always a multiple of 5 of the smaller side.
Applying this to find the similarity of the other two sides which are not equal, we find that on comparing the sides that are known, the similar side for AB is WX and AB = 5 × WX.
Thus, using this we can find the value of v to be YZ × 5 = 10 × 5 = 50m
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which equation represents the amount of money lydia spent of apples and bananas? which equation represents the amount of money ari spent on apples and bananas?
Answers
Equation represents the amount of money lydia spent of apples and bananas is 5x + 3y = 8.50. Equation represents the amount of money ari spent on apples and bananas is 3x + 2y = 5.25.
Let x be the cost per pound of apples, and let y be the cost per pound of bananas. Then, the system of equations representing the given situation is:
5x + 3y = 8.50 (Equation 1)
3x + 2y = 5.25 (Equation 2)
Equation 1 represents the amount of money Lydia spent on 5 pounds of apples and 3 pounds of bananas. It shows that the total cost of the apples and bananas that Lydia bought is $8.50. To find the cost per pound of each fruit, we need to solve for x and y.
Equation 2 represents the amount of money Ari spent on 3 pounds of apples and 2 pounds of bananas. It shows that the total cost of the apples and bananas that Ari bought is $5.25. To find the cost per pound of each fruit, we need to solve for x and y.
To solve for x and y, we can use the method of substitution or elimination. Once we find the values of x and y, we can substitute them back into Equation 1 or Equation 2 to find the cost of each fruit for Lydia and Ari.
In summary, the given situation can be represented by a system of two equations. Equation 1 represents the amount of money Lydia spent on apples and bananas, and Equation 2 represents the amount of money Ari spent on apples and bananas. To find the cost per pound of each fruit, we need to solve for x and y using substitution or elimination.
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Complete question is:
Lydia buys 5 pounds of apples and 3 pounds of bananas for a total of $8.50. Ari buys 3 pounds of apples and 2 pounds of bananas for a total of $5.25. Determine a system of equations that represents the given the situation. Let x be cost per pound of apples and let y be the cost per pound of bananas. Which equation represents the amount of money Lydia spent of apples and bananas? Which equation represents the amount of money Ari spent on apples and bananas?
Now given your positive test result from test 2, what is doctor b's posterior probability for the hypothesis that you do have cogscitis?
Answers
The posterior probability of having cogscitis, given a positive test result from Test 2, is 0.0094 or about 0.94%. This indicates that even though you had a positive Test 2 result, the likelihood that you actually have CNS inflammation is still extremely low less than 1%.
With your positive test result from Test 2, we must apply Bayes' theorem to get Doctor B's posterior probability that you have cogscitis, which is:
P(A|B) = P(B|A) * P(A) / P(B)
The following probabilities are known:
P(A) = 0.001 (the population prevalence and previous likelihood of getting cogscitis)
P(B|A) = 0.95 (the possibility of receiving a positive Test 2 result while having cogscitis)
P(B|not A) = 0.10 (the possibility of receiving a positive test result from Test 2 even if you do not have cogscitis)
The law of total probability, which asserts the following, can be used to determine the marginal probability of a positive test result (P(B)):
P(B) = P(B|A) * P(A) + P(B|not A) * P(not A)
where:
P(not A) = 1 - P(A) = 0.999 (the multiplier of the previous probability of contracting cogscitis)
Substituting the values, we get:
P(B) = 0.95 * 0.001 + 0.10 * 0.999 = 0.1008
The posterior probability of developing cogscitis can now be determined, given a positive test result from Test 2:
P(A|B) = P(B|A) * P(A) / P(B)
= 0.95 * 0.001 / 0.1008
= 0.0094
Therefore, the posterior probability of having cogscitis, given a positive test result from Test 2, is 0.0094 or about 0.94%. This indicates that even though you had a positive Test 2 result, the likelihood that you actually have CNS inflammation is still extremely low less than 1%.
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Help,It's due in like 25 minutes! I know that these might be a lot of questions, but I really need help but I'll give you five points for each picture question. So that means I'll give you 25 points.
Answers
Using the table of measurement, 0.4970969 is equivalent to 800 meters
What is unit of measurement?A unit of measurement is a definite magnitude of a quantity, defined and adopted by convention or by law, that is used as a standard for measurement of the same kind of quantity. To convert a mile measurement to a centimeter measurement, multiply the length by the conversion ratio.
1 inch = 2.54 centimeters
1 foot = 0.3048 meters
1 mile = 1.60 kilometers
Recall that 1 mile is 1609.344 meters
Therefore, the equivalence is 800/1609.344
Therefore 800 meters is equivalent to 0.4970969 miles
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the lengths of human pregnancies (gestation) can be modeled by a bell-shaped distribution with mean 266 days and standard deviation 16 days. a certain pregnancy had a z-score of -2.5 (negative 2.5). how many days did this pregnancy last?
Answers
If a certain pregnancy had a z-score of -2.5 with mean 266 days and standard deviation 16 days , the pregnancy lasted 230 days.
We know that the length of human pregnancies can be modeled by a normal distribution with a mean of 266 days and a standard deviation of 16 days.
We are also given that a certain pregnancy had a z-score of -2.5. The z-score is a measure of how many standard deviations a data point is away from the mean. A negative z-score means that the data point is below the mean.
We can use the formula for converting a z-score to an actual value in a normal distribution:
z = (x - mu) / sigma
where z is the z-score, x is the actual value we want to find, mu is the mean, and sigma is the standard deviation.
Plugging in the given values, we get:
-2.5 = (x - 266) / 16
Solving for x, we get:
x = (-2.5 * 16) + 266 = 230
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YOUR MISSION: Create and solve a linear equation based on a real-world problem on any media of your choice (e.g. poster board, computer, etc). Make sure you only have 1 variable (let's say X), but this variable can be used multiple times throughout the equation. For example, 2(X + 1) = 3X + 5-1X
Note: A constant is a number that is standing all by itself as its own term. For example, in 2X+1=5, the constants are 1 and 5. A coefficient is the number attached to the left of the variable, also known as in front of the variable. For example, in 2X +1 =5, the coefficient is 2.
Answers
A company wants to increase its sales by $5,000 per month by selling more products. The company knows that each product they sell generates $10 in revenue. They want to find out how many products they need to sell to reach their goal.
Let X be the number of products the company needs to sell.
The equation representing the situation is:
10X = 5000 + 10X
To solve for X, we'll simplify the equation as follows:
0 = 5000
X = 5000 / 10
X = 500
So the company needs to sell 500 products to reach their goal of increasing sales by $5,000 per month.
in a particular region during a 1-year period, there were 1000 deaths. it was observed that 321 people died of a renal failure and 460 people had at least one parent with renal failure. of these 460 people, 115 died of renal failure. calculate the probabil ity of a person that he dies of renal failure if neither of his parents had a renal failure
Answers
The probability of a person dying of renal failure if neither of their parents had renal failure is 0.056 or about 5.6%.
To solve this problem, we can use Bayes' theorem, which states that:
P(A|B) = P(B|A) * P(A) / P(B)
where P(A|B) is the probability of event A given that event B has occurred, P(B|A) is the probability of event B given that event A has occurred, P(A) is the prior probability of event A, and P(B) is the prior probability of event B.
In this case, we want to find the probability of a person dying of renal failure given that neither of their parents had renal failure. Let's define the following events:
R: death due to renal failure
P: at least one parent with renal failure
NP: neither parent has renal failure
We are given the following information:
Total deaths = 1000
Deaths due to renal failure (R) = 321
People with at least one parent with renal failure (P) = 460
Deaths due to renal failure among people with at least one parent with renal failure = 115
Using this information, we can calculate the probabilities as follows:
P(R) = 321/1000
P(P) = 460/1000
P(R|P) = 115/460
To find the probability of a person dying of renal failure given that neither of their parents had renal failure (i.e., P(R|NP)), we need to use Bayes' theorem. We can start by finding the probability of neither parent having renal failure (i.e., P(NP)):
P(NP) = 1 - P(P) = 1 - 0.46 = 0.54
Next, we can use the law of total probability to find the probability of dying of renal failure among people with neither parent having renal failure:
P(R|NP) = P(R) * P(NP|R) / P(NP)
We can find P(NP|R) using the formula:
P(NP|R) = P(NP ∩ R) / P(R)
To find P(NP ∩ R), we can use the formula:
P(NP ∩ R) = P(R|NP) * P(NP)
Substituting the values, we get:
P(R|NP) = P(R) * P(NP|R) / P(NP)
= 321/1000 * (1 - 115/460) / 0.54
= 0.056
This calculation shows how conditional probabilities can be calculated using Bayes' theorem and the law of total probability.
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The function f(x) represents the number of texts sent this week, and g(x) represents the number of texts sent last week. Given f(x) = 7x + 5 and g(x) = 6x − 8, find (f − g)(x) to find how many more texts were sent this week than last week.
(f − g)(x) = x + 13
(f − g)(x) = x − 13
(f − g)(x) = 13x + 13
(f − g)(x) = 13x −13
Answers
Answer:
Step-by-step explanation:
(f - g) (x) = f(x) - g(x)
Given that f(x) = 7x + 5 and g(x) = 6x - 8, we can substitute these values into (f - g) (x):
(f - g) (x) = (7x + 5) - (6x - 8)
(f - g) (x) = 7x + 5 - 6x + 8
(f - g) (x) = x + 13
So, the answer is (f - g) (x) = x + 13
To find how many more texts were sent this week than last week we use,
(f − g)(x) = x + 13.
What is a function?A function can be defined as the outputs for a given set of inputs.
The inputs of a function are known as the independent variable and the outputs of a function are known as the dependent variable.
From the given information, The number of more texts sent this week than last week is the difference between the functions f(x) - g(x).
= (f - g)x.
= (7x + 5) - (6x - 8).
= 7x + 5 - 6x + 8.
= x + 13.
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can you answer the question in the picture and show me the steps
Answers
Step-by-step explanation:
Since it varies directly, we can set up a ratio and solve for x
[tex] \frac{ - 4}{ - 2} = \frac{x}{12} [/tex]
Next we would cross multiply... multiply the numbers diagonally
[tex]( - 4)(12) = ( - 2)(x)[/tex]
Simplifying
[tex] - 48 = - 2x[/tex]
Now to get X alone, we would divide by the number attached to it, so -2. We'd do -2 on the -48 also
[tex]x = 24[/tex]
Macy wants to join a Rock-Climbing gym. Avery's gym has an initial cost of $50 with a $10 per session charge. Gabe's gym has no initial cost, but has a $12 per session charge. How many sessions will she have to take to make both gym's cost the same?
Answers
Answer: 25 sessions
Step-by-step explanation:
Set up an equation.
50+10x=12x
50=2x
x=25
She will have to take 25 sessions for both gym costs to be the same.
You can check this too. 50 plus 10*25 is $300, and 12*25 is $300.
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Hope this helps.
MM4343
Answer: We can start by setting the cost of the two gyms equal to each other and then solving for the number of sessions. Let's call the number of sessions Macy takes x. The cost of Avery's gym is 50 + 10x, and the cost of Gabe's gym is 12x. Setting these two equal to each other, we have:
50 + 10x = 12x
Subtracting 12x from both sides:
50 = -2x + 10x
Simplifying:
50 = 8x
Dividing both sides by 8:
x = 6.25
So, Macy would need to take 6.25 sessions for the cost of both gyms to be the same. However, since she can only take whole number of sessions, she would need to take 7 sessions to make both gyms cost the same.
Step-by-step explanation:
Use the place value to solve the following 92-12=
Answers
Answer:
hey there here's your answer !!!!
Step-by-step explanation:
For two-digit numbers, there is the TENS place and the ONES place. Let's take a closer look at the place value for the number 12. The 1 is in the TENS place, and the 2 is in the ONES place. That's because the number 12 is made up of 1 ten and 2 ones.
based on your knowledge of the two data sets described below, would you expect a scatter plot describing the two data sets to have a positive, a negative, or no correlation? hourly pay and total number of sick days allowed
Answers
Based on your knowledge of the two data sets described below, would you expect a scatter plot describing the two data sets to have a no correlation.
Based on my knowledge, I would not expect there to be a strong correlation between hourly pay and total number of sick days allowed. These two variables are not directly related to each other and there is no clear reason to expect a positive or negative correlation between them. Therefore, I would expect the scatter plot to show no correlation between the two variables. However, it's worth noting that without actually seeing the data, it's difficult to definitively determine whether there is any correlation present.
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Evaluate (-7)⁰
What’s is the solution?
Answers
Answer:
1
Step-by-step explanation:
everything to power of 0 is 1, except for 0^0 is undefined
The expression (3^8/2)(3^8/4) can be rewritten as 3 where k is a constant. What is the value of k?
Answers
The solution of the expression for the value of k is [tex]\dfrac{8}{3^{15}}[/tex].
What is an expression?Expression in maths is defined as the relation of numbers variables and functions by using mathematical signs like addition, subtraction, multiplication and division.
The given expression is,
[tex]\dfrac{3^8}{2}\times \dfrac{3^8}{4}\times k = 3[/tex]
The given expression will be solved as below,
[tex]\dfrac{3^8}{2}\times \dfrac{3^8}{4}\times k = 3[/tex]
Apply the properties of exponents which say that the number with the same base its exponents will be added.
[tex]\dfrac{3^{16}}{8}\times k = 3[/tex]
Now cross-multiply the number 3 by the ratio of 8 and the 3¹⁶ and solve for the value of k,
[tex]k = \dfrac{8}{3^{15}}[/tex]
Therefore, the value of k will be calculated as the ratio [tex]\dfrac{8}{3^{15}}[/tex].
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1. Simplify the following ratios: 1.1 30:45 1.4 350:400 1.7 600 g: 4 kg 1.2 1.5 1.8 65:91 12 cm: 1m 21:750 ml 1.3 1.6 120:132:144- 3 km: 50 m
Answers
The simplified ratios are shown below:
What is Ratio?A ratio is a comparison between two amounts that is calculated by dividing one amount by the other. The quotient a/b is referred to as the ratio between a and b if a and b are two values of the same kind and with the same units, such that b is not equal to 0. Ratios are represented by the colon symbol (:). As a result, the ratio a/b has no units and is represented by the notation a: b.
Given:
We have ratios
1. 30: 45
= 30/45
= 2 /3
2. 350 : 400
= 350/400
= 7/8
3. 600g : 4 Kg
= 600 / 4000
= 6/ 40
= 3/20
4. 65:91
= 5 / 7
5. 12 cm : 1 m
= 12 / 100
= 3 /25
6. 3 Km: 50 m
= 3000 / 50
= 60
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Please help with this homework ?
Answers
Step-by-step explanation:
sorry for the wait I hope this helps you with you're problem
A class has 45 students of the students are wearing blue shirts, of
them are wearing red shirts, and the rest are wearing yellow shirts.
What is the probability of selecting a student who is wearing a yellow
shirt?
Answers
The probability of selecting a student who is wearing a yellow shirt is 36 %
How to find the probability ?The total number of students is 45 students and out of these, 3 / 7 are wearing blue shirts while 2 / 9 are wearing red shirts.
This means that the number of students wearing yellow is:
= 45 - ( 45 x 3 / 7 ) - ( 45 x 2 / 9 )
= 45 - 19 - 10
= 16 students
The probability of selecting a student who is wearing yellow is :
= 16 / 45
= 36 %
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The full question is:
A class has 45 students of the students are wearing 3/7 blue shirts, of
them are 2/9 wearing red shirts, and the rest are wearing yellow shirts.
What is the probability of selecting a student who is wearing a yellow
shirt?
There are 12 girls and 14 boys in math class. The teacher puts the names of the students in a hat and randomly picks one name. Then the teacher picks another name without replacing the first.
What is the probability that both students picked are the same gender?
Answers
Answer:
The probability of picking the first boy is 14/26 and the probability of picking another boy is 13/25.
Step-by-step explanation:
Shape A is reflected in the line with equation x=2 to get Shape B. Shape B is reflected in the x=6 to get Shape C. Describe the transformation that fully transforms Shape A to Shape C.
Answers
The transformation that fully transforms Shape A to Shape C is reflected in the x =6.5
What is a reflection?There are two ways of reflection.
Along x-axis:
(x, y) – (x, -y)
Along y-axis:
(x, y) - (-x, y)
We have,
The line x = 2, x = 6, and x = 6.5 is given on the graph below.
Shape A is reflected in the line with equation x = 2 to get Shape B.
Shape B is reflected in the x = 6 to get Shape C.
Now,
Shape A is reflected in the x =6.5 to get Shape C.
Thus,
The transformation that fully transforms Shape A to Shape C is reflected in the x =6.5
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Find the value of x.
6x
60°
Answers
Answer:
Step-by-step explanation:
If you are implying that the equation is "6x = 60"
Divide both sides by 6 to get just x by itself, then you'd have your answer.
X = 10
Suppose normal distribution has a mean of 98 and a standard deviation of
6. What is P(x ≥ 92)?
O A. 0.16
B. 0.475
C. 0.84
D. 0.975
Answers
The probability expressed as P(x ≥ 92) in the normal distribution is; C: 0.84
How to find the probability in normal distribution?We are given that the normal distribution has;
Population mean: μ = 98
Population standard deviation; σ = 6
Sample mean; x' = 92
Thus, z-score is;
z = (x' - μ)/σ
z = (92 - 98)/6
z = -1
Thus, from z-score tables we have;
P(z ≥ -1) = 0.84
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Sam asked 15 of his friends what they thought about the pizza they just had, is this a random or biased sample
Answers
The sample taken by Sam is Biased sampling.
What is Random sample?A subset of a population is chosen at random in a basic random sampling. Each person in the population has an exact equal probability of getting chosen using this sampling technique.
Given:
Sam asked 15 of his friends what they thought about the pizza they just had.
Sam here chooses his friend that means the people are selective already.
He already chooses the people which were known to him.
So, the selection here is biased sample.
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[tex]64^{2x+1} =1024[/tex]
Answers
Answer:
x = 1/3
Step-by-step explanation:
64^2x+1 = 1024
4^3(2x+1) = 4^5
Since the bases are the same, two expressions are only equal if the exponents are also equal.
3 (2x + 1) = 5
Divided each term by 3
2x + 1 = 5/3
2x = 2/3
x = 1/3
From a position 3.5 m above ground level in a building, an an observer measures the angle of elevation of the top of a flagpole to be 48°, and the angle of depression of the foot of the flagpole to be 35°
. a. How far away from the flagpole is the building?
b. How tall is the flagpole?
Answers
a. The flagpole is 5 feet away from the building.
b. The height of the flagpole is 8 feet.
What are trigonometric ratios in terms of a right-angle triangle?We know a right-angled triangle has three sides they are -: Hypotenuse,
Opposite and Adjacent.
We can remember SOH CAH TOA which is,
sin = opposite/hypotenuse, cos = adjecen/hypotenuse and
tan = opposite/adjacent.
The distance from the building to the flagpole is,
tan35° = 3.5/x.
x = 3.5/0.7.
x = 5 feet.
Now, tan48° = x/5.
x = 5/1.11.
x = 4.5 feet.
Therefore, The height of the flagpole is 4.5 + 3.5 = 8 feet.
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Please help with the attached question.
Answers
A. The functions are not inverse of each other.
B. The domain of the composition using interval notation is (-∞, ∞)
What are functions?Function is a relation between a set of inputs and a set of outputs which are permissible. In a function, for particular values of x we will get only a single image in y. It is denoted by f(x).
A. To show that two functions are inverses of each other, we need to show that their compositions are equal to the identity function, which is denoted as f(x) = x.
That is, we need to show that:
(f ∘ g)(x) = x
(g ∘ f)(x) = x
where ∘ denotes function composition.
First, we'll find the composition (f ∘ g)(x):
(f ∘ g)(x) = f(g(x))
= f(9x+1)
= (9x+1) - 3
= 9x - 2
Next, we'll find the composition (g ∘ f)(x):
(g ∘ f)(x) = g(f(x))
= g(x-3)
= 9(x-3) + 1
= 9x - 26
Since (f ∘ g)(x) ≠ x and (g ∘ f)(x) ≠ x, the functions f(x) and g(x) are not inverses of each other.
B. To find the domain of (f ∘ g)(x), we need to ensure that the input to g(x) is within its domain, which it is for all real numbers. To find the domain of (g ∘ f)(x), we need to ensure that the input to f(x) is within its domain, which it is for all real numbers.
Therefore, the domains of (f ∘ g)(x) and (g ∘ f)(x) are both all real numbers, and we can express this using interval notation as:
Domain of (f ∘ g)(x) and (g ∘ f)(x):
(-∞, ∞)
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Please find the missing side length using trig
Answers
Triangle ABC is the term used to refer to a triangle with the vertices A, B, and C. When the three points are not collinear, a unique plane and triangle in Euclidean geometry are discovered [tex]A^2 = B ^2 + c^2[/tex] => AC = [tex]\sqrt{115}[/tex]
What is the Pythagorean theorem?Given that it has three sides and three vertices, a triangle qualifies as a polygon. It belongs to the fundamental geometric shapes.
Triangles are polygons because they have three sides and three corners. The points where the three sides of the triangle converge are referred to as the triangle's corners. 180 degrees is obtained by multiplying three triangle angles.
Here, in this triangle by Pythagorean theorem
[tex]A^2 = B ^2 + c^2[/tex]
AC = [tex]\sqrt{14^2- 9^2}[/tex]
AC = [tex]\sqrt{196- 81}[/tex]
Ac = [tex]\sqrt{115}[/tex]
Therefore, We can state that this triangle conforms to the Pythagorean theorem after answering the offered question.
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A composite figure is shown.
A five-sided figure with two parallel bases. The top one is 5 centimeters. The vertical height between these bases is 2.7 centimeters. That vertical height intersects the bottom base, leaving 3 centimeters between it and the vertex to the left. The side on the right is the longest at 6.8 centimeters. There is a horizontal line connecting the vertex of the bottom base to the 6.8-centimeter side and that line is 3.4 centimeters.
Which of the following represents the total area of the figure?
24.52cm
31.49cm
42.07cm
49.04cm
Answers
Answer:
Therefore, the correct answer is (a) 24.52 cm^2.
Step-by-step explanation:
To find the area of the figure, we need to find the area of the two triangles and the trapezoid and add them together.
The top triangle has a base of 5 cm and a height of 2.7 cm, so its area can be found by multiplying the base by the height and dividing by 2: (5 * 2.7) / 2 = 13.5 cm^2.
The bottom triangle has a base of 3 cm and a height of 2.7 cm, so its area can be found by multiplying the base by the height and dividing by 2: (3 * 2.7) / 2 = 4.05 cm^2.
The trapezoid has a base of 5 cm, a top length of 6.8 cm, and a height of 3.4 cm, so its area can be found using the formula for the area of a trapezoid: ((5 + 6.8) / 2) * 3.4 = 20.06 cm^2.
The total area of the figure is the sum of the areas of the three shapes: 13.5 + 4.05 + 20.06 = 37.61 cm^2.
Therefore, the correct answer is (a) 24.52 cm^2.
Lines AAA, BBB, and CCC show proportional relationships. Which line has a constant of proportionality between yyy and xxx of \dfrac{5}{4} 4 5 start fraction, 5, divided by, 4, end fraction?
Answers
If lines A, B and C shows proportional relationships, then the line A has a constant of proportionality between y and x is 5
Given the line A, B and C
The constant of proportionality is the ratio of the y coordinates to the x coordinate
k = y /x
Where k is the constant of proportionality
Consider the line A
One point on the line = (1, 5)
Constant of proportionality K = 5/1
= 5
Consider the line B
One point on the line = (3, 5)
Constant of proportionality k = 5/3
Consider the line C
One point on the line = (7, 5)
Constant of proportionality = 5/7
Therefore, the line A has the constant of proportionality of 5
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The given question is incomplete, the complete question is
Lines A, B, and C show proportional relationships. Which line has a constant of proportionality between y and x of 5?
A beaker contains 1/14 pints of a chemical. A scientist pours the chemical out of the beaker until only 3 fluid ounces remain. How many fluid ounces of the chemical did the scientist pour out of the beaker?
Answers
The scientist poured 17 ounces of chemical out of the beaker, calculated from the total and remaining amount of chemical.
We are aware of the conversion unit that 1 pint is equal to 16 fluid ounces. So, total amount of chemical in the beaker is -
Chemical in beaker in points = 5/4
Chemical in beaker in ounces = 16×1/14
Chemical in beaker = 20 ounces
Now, the expression to calculate poured amount of chemical will be -
Total amount = poured chemical + remaining chemical
20 = poured chemical + 3
Poured chemical = 20 - 3
Performing subtraction on Right Hand Side of the equation
Poured chemical = 17 ounces
Therefore, 17 ounces of chemical was poured.
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The correct question is -
A beaker contains 1 1/4 pints of a chemical. A scientist pours the chemical out of the beaker until only 3 fluid ounces remain. How many fluid ounces of the chemical did the scientist pour out of the beaker?
