5.7(26 - 3.82x) = 5.7(26) - 5.7(3.82x) = 149.2 - 21.534x
Answer:
5.7(26-3.82x)
(5.7*26) + (5.7*-3.82x)
148.2 + -21.774x
Step-by-step explanation:
27. A company wants to buy phones for its employees. Employee executives will get smart
phones at a cost of $250 each and regular employees will get flip phones at a cost of $50
each. If the company spends $4,000 on a total 40 phones, and every employee gets a
phone, how many more regular employees than executives work at the company?
A) 20
B) 25
C) 30
D) 35
The number of regular employees that got a phone is 39
The number of executive employees that got a phone is 1
How to calculate the number of regular and executive employees that got phones?Let x represent the number of regular employees
Let y represent the number of executive employees
x + y= 40.......equation 1
50x + 250y= 4000...........equation 2
From equation 1
x= 40-y
Substitute 40-y for x in equation 2
50(40-y) + 250y= 4000
2000- 50y + 250y= 4000
2000 + 2000y= 4000
2000y= 4000-2000
2000y= 2000
y = 1
Substitute 1 for y in equation 1
x + y= 40
x + 1= 40
x= 40-1
x= 39
Hence there are 39 regular employees that got a phone and 1 executive employee that got a phone.
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80 Cable TV customers were asked whether they had a subscription for Cable Cinema, Cable Box Sets or Cable Sports.
7 has subscriptions to all 3
11 has Cable Box Set and Cable Sports, but not Cable Cinema
14 had Cable Box Sets and Cable Cinema but not Cable Sports
11 had Cable Cinema and Cable Sports
36 had a subscription for Cable Cinema
48 had a subscription for Cable Box Sets
33 had a subscription for Cable Sports
Show this information on the Venn Diagram
The following information, taking into account the union and intersection of the different elements given would be displayed in a Venn Diagram:
The first circle, representing Cable Cinema, would have 36 customers inside it and a total of 70 customers accounted for when considering the intersections with other circles.The second circle, representing Cable Box Sets, would have 48 customers inside it and a total of 62 customers accounted for when considering the intersections with other circles.The third circle, representing Cable Sports, would have 33 customers inside it and a total of 44 customers accounted for when considering the intersections with other circles.The intersection of the three circles would have 7 customers, representing those with subscriptions to all three services.The intersection of Cable Box Sets and Cable Sports (but not Cable Cinema) would have 11 customers.The intersection of Cable Box Sets and Cable Cinema (but not Cable Sports) would have 14 customers.The intersection of Cable Cinema and Cable Sports (but not Cable Box Sets) would have 11 customers.A Venn diagram for this information would have three circles, each representing one of the cable subscriptions (Cable Cinema, Cable Box Sets, Cable Sports).
The intersections of the circles would represent the customers who have more than one subscription.
The numbers inside the intersections represent the number of customers with that combination of subscriptions, and the numbers outside the intersections represent the number of customers with only that one subscription.
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let u = , v , and w . it can be shown that uvw0. use this fact (and no row operations) to find and that satisfy the e
Any combination of a, b, and c such that a*b*c = 0 is valid and satisfies the equation.
To calculate this, Let u = a, v = b, and w = c. Then, since uvw = 0, we have:
a*b*c = 0
Since the equation is asking us to find a, b, and c that satisfy the equation, this means that any combination of a, b, and c such that a*b*c = 0 is a valid solution.
For example, a = 0, b = 1, and c = 0 is a valid solution as 0*1*0 = 0. Similarly, a = 3, b = -2, and c = 0 is also a valid solution as 3*-2*0 = 0.
Thus, any combination of a, b, and c such that a*b*c = 0 is valid and satisfies the equation.
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increase 200 by 50%
pls give simple worrking out :)
Answer:
300
Step-by-step explanation:
1.5*200 = 300
Cool.
d/dx(k dt/dx)=0 solution
The solution of derivative function is , [tex]\frac{d}{dx} (k(\frac{d}{dx} (t))[/tex] = 0
Given that,
d/dx(k dt/dx) = 0
Geometrically, the derivative of a function can be interpreted as the slope of the graph of the function or, more precisely, as the slope of the tangent line at a point. Its calculation, in fact, derives from the slope formula for a straight line, except that a limiting process must be used for curves.
[tex]\frac{d}{dx} (k(\frac{d}{dx} )t[/tex] = 0 (Equation-1)
Then,
[tex]\frac{d}{dx} (t)[/tex] = 0
The derivative of a function is defined as the instantaneous rate of change of a function at a specific point. The derivative gives the exact slope along the curve at a specific point. The derivative of the function is represented as d y d x , which means the derivative of with respect to the variable .
We can substitute equation-1,
So,
We can write,
[tex]\frac{d}{dx} (k*0)[/tex] = 0
[tex]\frac{d}{dx} (0)[/tex] = 0
0 = 0
Therefore,
The solution of derivative function is , [tex]\frac{d}{dx} (k(\frac{d}{dx} (t))[/tex] = 0
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I NEED HELP WITH BOTH QUESTIONS ASAP!!!
Answer: 5 and {100, 20, 4, 0.8}
Step-by-step explanation: For the first problem each numbers difference is +5, (-9 + 5 = -4 + 5 = 1 exc.) For the second problem the arithmetic sequence is /5, (100 / 5 = 20 / 5 = 4 exc.)
the act scores of a sample of business school students and their genders are shown below. if you are interested in analyzing gender differences in act performance, which of the following statistics/concepts would you calculate? act scores gender less than 20 20 up to 25 25 and more total female 24 168 48 240 male 40 96 24 160 total 64 264 72 400 row percentages column percentages frequencies none of the above
In order to analyze gender differences in ACT performance, you would calculate the frequency of ACT scores for each gender, as well as the total frequency of ACT scores. So, you would calculate C: frequencies.
This would give you a count of the number of males and females who scored less than 20, 20 up to 25, and 25 and more on the ACT. With this information, you can compare the distribution of ACT scores between males and females, and determine if there are any significant differences in performance between the two groups. This information is commonly represented in a frequency table, which displays the number of observations (or count) for each category of a variable.
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If p=3/4(x+y)d find p when x=8,y=10,d=1/2
in a study, the data you collect is restaurant rating (superior, good, average, poor, inferior). what is the level of measurement?
The level of measurement of the data "restaurant rating (superior, good, average, poor, inferior)" is ordinal.
Ordinal level of measurement refers to data that has a natural order or ranking, but the difference between each category is not necessarily equal. In this case, the restaurant ratings have a clear order, with superior being the highest and inferior being the lowest, but the difference between each category is not specified or quantifiable.
An ordinal scale allows for the ranking or ordering of data but not for mathematical operations such as addition, subtraction, or division. This is because the intervals between categories are not equal and cannot be assumed to be so.
In summary, the restaurant rating data is an example of ordinal level of measurement as it has a clear order or ranking, but the intervals between categories are not equal and cannot be used for mathematical operations.
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A cone has a radius of 4.96cm and a volume of 102cm. Work out an estimate for the height of the cone. You must show your working.
So stuck, I keep getting 3.9 but apparently its wrong.
The formula for the volume of a cone is:
V = (1/3)πr^2 x h
Where V is the volume, π is approximately 3.14, r is the radius, and h is the height of the cone.
We know that the volume of the cone is 102 cm^3 and the radius of the cone is 4.96 cm. So we can substitute these values into the formula:
102 = (1/3)π(4.96)^2 x h
To estimate height of the cone we need to divide both sides of the equation by (1/3)π(4.96)^2.
h = 3.959207...
So, the height of the cone is approximately 3.96 cm.
find the value of x that makes m || n (11x - 33) m (6x - 6) n
Step-by-step explanation: Two lines are parallel if and only if their slopes are equal.
The slope of a line can be found by taking the coefficient of the x term in the equation of the line.
m: 11x - 33 has a slope of 11
n: 6x - 6 has a slope of 6
For two lines to be parallel, the slope of line "m" should be equal to the slope of line "n",
so we can set up the equation :
11 = 6x
To find the value of x that makes m || n, we can solve this equation for x:
x = 11/6 = 1.833
So the value of x that makes lines m and n parallel is 1.833.
In Marissa's calculus course, attendance counts for 5% of the grade, quizzes count for 20% of the grade, exams count for 60% of the grade, and the final exam counts for 15% of the grade. Marissa had a 100% average for attendance, 95% for quizzes, 82% for exams, and 81% on the final. Determine Marissa's course average.
The Marissa's course average is 85.35%.
What is Percentage?To determine the quantity or percentage of something in terms of 100, use the percentage formula. Per cent simply means one in a hundred. Using the percentage formula, a number between 0 and 1 can be expressed. A number that is expressed as a fraction of 100 is what it is. It is mostly used to compare and determine ratios and is represented by the symbol %.
Given:
Attendance counts for 5% of the grade,.
Quizzes count for 20% of the grade.
Exams count for 60% of the grade.
Final exam counts for 15% of the grade.
So, Marissa's course average
= 0.05(100%) + 0.20 x 95% + 0.60 x 82% + 0.15 x 81%
= 5+ 19 + 49.2 + 12.15
= 85.35%
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4x = 24 Linear equation
Answer:
x = 6
Step-by-step explanation:
4x = 24
x = 6
Let's check
4(6) = 24
24 = 24
So, x = 6 is the correct answer.
[tex]\frac{12x+2}{25} =\frac{10x+2}{21}[/tex]
The expression (12x +2)/ 25 = (10x+2)/21 can be simplified so that the value of x= 2.
How can the expression be simplied?The concept that will be used here is simplification. To simplify simply means to make anything easier. In mathematics, simplifying an equation, fraction, or problem means taking it and making it simpler. Calculations and problem-solving techniques simplify the issue.
We were given, (12x +2)/ 25 = (10x+2)/21
then we can cross multiply as :
252x +42 = 250x +50
Then we collect the like terms as:
252x- 250x = 50 - 42
2x = 8
x=4
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complete question:
simplify the expression and find the value of x?
PLS HELP ASAP Solve 0.408 ÷ 6.
0.068
0.680
2.448
−5.592
Answer: 0.068
Step-by-step explanation:
i used a calculator so I think it's right
how to solve a proportion… x/8 = 3/12
Answer:
x = 2
Step-by-step explanation:
Given,
x/8 = 3/12
Simplifying the RHS, we get 3/12 = 1/4
x/8=1/4
Multiply 8 on both sides, we get
x*8/8 = 1*8/4
or x = 8/4
=2
∴ x = 2
can each vector in be written as a linear combination of the columns of the matrix a? do the columns of a span ?
Yes, each vector in be written as a linear combination of the columns of the matrix a , only if columns of a are linearly independent.
by the above statement , the column of a does not span.
linearly independent
Given a set of vectors, you can determine if they are linearly independent by writing the vectors as the columns of the matrix A, and solving Ax = 0. If there are any non-zero solutions, then the vectors are linearly dependent. If the only solution is x = 0, then they are linearly independent.
non- zero solution
A solution of a set of homogeneous linear equations in which at least one of the variables has a value different from zero.
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s/a = 4; l/a = 0.20; i/e = 0.10; a = l e and a = 100. find i/s.
The value of i/S is 0.02.
Therefore the answer is 0.02.
Given the information, we can first find the value of e, using the equation a = l + e, where l/a = 0.20 and a = 100:
e = a - (l/a) * a = 100 - (0.20 * 100) = 100 - 20 = 80
Next, we can find the value of i using the given information i/e = 0.10:
i = i/e * e = 0.10 * 80 = 8
Finally, we can find the value of i/S using the equation i/S = i / (S/a) * a = 8 / (4 * 100) = 8 / 400 = 0.02.
So, the value of i/S is 0.02.
--The question is incomplete, answering to the question below--
"S/a = 4; l/a = 0.20; i/e = 0.10; a = l + e and a = 100. find i/S."
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a building casts a 103-foot shadow at the same time that a 32-foot flagpole casts as 34.5-foot shadow. how tall is the building in feet?
The height of the the building is 95.5 feet.
As per the given data:
A building casts a 103-foot shadow.
At the same time, a 32-foot flagpole casts a 34.5-foot shadow.
Diagrams of both the building and flagpole are attached at the end of the solution.
Here we have to determine the height of the building.
From the above figure, in Δ ABC, AB shows the height of the building and BC shows its shadow length. In ΔDEF, DE shows the height of the flagpole and EF shows its shadow length.
In ΔABC
[tex]$ \tan \theta=\frac{A B}{B C} \\[/tex]
[tex]$& \tan \theta=\frac{A B}{103}[/tex]
In ΔDEF
[tex]$& \tan \theta=\frac{D E}{E F} \\[/tex]
[tex]$\tan \theta=\frac{32}{34.5}[/tex]
At the same time, the angle of elevation of the sun is the same at all the places.
Therefore
[tex]$& \tan \theta=\tan \theta \\[/tex]
[tex]$& \frac{A B}{103}=\frac{32}{34.5} \\[/tex]
[tex]$& AB = \frac{32 \times 103}{34.5} \\[/tex]
A B = 95.5 foot
Therefore, the height of the building will be 95.5 feet.
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In circle V, m/WVX = 97°. Solve for z if mW X = (3x +49)°. If necessary,
round your answer to the nearest tenth.
30
Answer:
x = 16
Step-by-step explanation:
the measure of an arc has the same measure as the central angle that intercepts it , that is
3x + 49 = 97 ( subtract 49 from both sides )
3x = 48 ( divide both sides by 3 )
x = 16
Which function is graphed at the right?
F. f(x) = 1/2x + 2
G. f(x)=x+2
H. f(x) = -1/2x + 2
I. flx) = -2x + 2
I. f(x) = -2x + 2 is graphed at the right.
.Twice a number is equal to negative four. Which equation could be used to find the number?
2 n = 4
2 n = -4
2 n - 4
2 n = -4 n
Answer:
the second one. 2n = -4.
we can easily see that 2*(-2) = 4.
2 Illustrate the following inequalities on graph paper and shade the region which satisfies all the three inequalities at the same line: -x + 5y ≤ 10, 3x - 4y ≤ 1 and x > -1 [WAEC].
The shaded region is given in the attached image below.
What are systems of inequalities?At least two linear inequalities in the same variables make up a system of linear inequality in two variables. The graph of a linear inequality is the graph of all solutions to the system, and the solution of a linear inequality is the ordered pair that resolves all inequalities in the system.
Given:
We have a system of inequalities,
-x + 5y ≤ 10,
3x - 4y ≤ 1
and x > -1.
The shaded region is given in the attached image.
Therefore, the shaded region is given.
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PLEASE HELP THIS IS DUE TODAY
The new height of a given right triangle is 60 inches.
What is scale factor?A scale factor is defined as the ratio between the scale of a given original object and a new object, which is its representation but of a different size (bigger or smaller).
The basic formula to find the scale factor of a figure is expressed as,
Scale factor = Dimensions of the new shape ÷ Dimensions of the original shape.
E) In the given triangle HGI, HG= 4 cm and GI =7 cm and in triangle H'G'I', H'G'= 6 cm and G'I' =10.5 cm.
Here, the scale factor is HG/H'G'
= 4/6
= 2/3
F) Given that, a scale factor is 0.2
Here, the width of a rectangle is 15 inches
Now, the new width is 15*0.2
= 3 inches
G) Given that, the side of a rectangle R is 5 cm and the side of a rectangle R' is 4 cm.
Now, the scale factor is 5/4
= 1.25
H) Given that, a scale factor is 5
In the right angle triangle height is 12 inches
So, the new height is 12*5
= 60 inches
Therefore, the new height of a given right triangle is 60 inches.
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You want to study at the Hogwarts School of Witchcraft and Wizardry after five years. You need
800
800800 pieces of muggle-money to study there. You decide to deposit some pieces in the bank at an annual interest rate of
12
%
12%12, percent.
How many pieces should you deposit today if you want to use the total amount to pay the fees?
Answer:
454
Step-by-step explanation:
need 800 in 5 years
x*(1+12%)^5 = 800
so 1.76x=800
x=454
answer??????????????????????
Answer: See the explanation Below
Step-by-step explanation:
The problem with the frequency table in the problem occurs within the "number of pets" column. Instead of recording the numbers 0-5 one time, Katie gave a row for every occurrence of each number. However, this defeats the purpose of having a tally column, which is much more efficient.
A better data table would look like the one I have attached to the problem.
For some additional help:
The tally column is filling in the number of times we see each number in the responses. For instance, 0 is given as an answer 3 times, so in the 0 tally box, you would write 3 tally marks.
The frequency table is found by dividing the number of that specific response by the total number of responses. For 0, we have 3 responses and 13 responses total. 3/13 = 0.23, which becomes the frequency. In the end, the totals for the frequency column should equal 1.
I hope this helps!
demonstrate how a company can add value by using porter’s value chain analysis. please reference 3 of the 5 forces and 1 of the 3 generic strategies.
One of Porter's three generic strategies and three of the five forces, such as the function bargaining power of suppliers, the threat of substitutes, and competitive rivalry, can be used to achieve this.
A tool used to find company areas where value can be created or cost savings can be realised is Porter's Value Chain Analysis. This tool can be used by businesses to examine their internal processes and find possible areas of competitive advantage. This can be achieved by identifying the various value chain steps and examining each level to find areas for cost savings. In order to comprehend the competitive environment in which the organisation operates and to pinpoint potential sources of competitive advantage, Porter's 3 Generic Strategies and 5 Forces can also be used. A corporation can find possible areas of competitive advantage by, for instance, examining the Bargaining Power of Suppliers, Threat of Substitutes, and Competitive Rivalry. Using these instruments, a business can create value.
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What’s the standard form of each equation
Answer: The answer is 8x - 5y = -7
Hope this helps! :)
determine 2 values of x that support your conclusion
The equation 2 + 3 = 3 + x has an infinite number of solutions.
How can we prove it ?A value of x that makes the equation true is -1, which when substituted into the equation and simplified makes the equation turn into 2 + 3 = 3 - 1 = 2.
Another value of x that makes the equation true is -4, which when substituted into the equation and simplified makes the equation turn into 2 + 3 = 3 - 4 = -1.
Therefore, the equation 2 + 3 = 3 + x has an infinite number of solutions.
What is quadratic equation ?A quadratic equation is a polynomial equation of degree 2, written in the form:
ax^2 + bx + c = 0
where a, b, and c are constants and x is an unknown variable. The equation can be solved to find the values of x that satisfy the equation, known as the roots or solutions. These solutions can be found using methods such as factoring, the quadratic formula, or completing the square.
Quadratic equations are commonly used in mathematics, science, and engineering to model and solve a wide range of real-world problems, such as modeling the trajectory of a projectile or finding the minimum or maximum value of a function.
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if the cafteria has 80 custmores on tusday which predicton for tuesday is not supported by the data table.
The number of bottles of apple juice sold will be 6 times the number of bottles of cranberry juice sold is not supported. Then the correct option is B.
What are ratio and proportion?A ratio is a group of sequentially ordered numbers a and b expressed as a/b, where b is never equal to zero. When two objects are equal, a statement is said to be proportional.
The table is given below.
Kind of juice Number of bottles sold
Monday Tuesday
Apple 11 22
Cranberry 7 14
Orange 18 36
Pineapple 4 8
Total 40 80
The number of bottles of apple juice sold will be 6 times the number of bottles of cranberry juice sold is not supported. Then the correct option is B.
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The complete question is given below.
A) The number of bottles of cranberry juice sold will be 6 more than the number of bottles of pineapple juice sold.
B) The number of bottles of apple juice sold will be 6 times the number of bottles of cranberry juice sold.
C) There will be a total of 50 bottles of orange and cranberry juice sold.
Eliminate
D) The difference between the number of bottles of apple juice sold and the number of bottles of pineapple juice sold will be 14.