The required (a) cost per ream becomes 59.99 and (b) the markdown per ream is 30.
Given that,
Printer Paper Store normally sells laser paper for 89,99 per ream, It has a special, 1 ream free with the purchase of 2. If you buy 2 reams and get 1 free.
In mathematics, it deals with numbers of operations according to the statements. There are four major arithmetic operators, addition, subtraction, multiplication and division,
Here,
Cost of the 1 ream = 89,99
Cost of the 2 reams = 179.98
According to the question,
Cost of the 3 reams = 179.98
Cost of the one ream among the 3 reams = 179.88/3 = 59.99
markdown per ream = 89.99 - 59.99 = 30
Thus, the required (a) cost per ream becomes 59.99 and (b) the markdown per ream is 30.
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Can you tell me what would make something a function vs. what is not a function?
Answer:
fails the vertical line test: not a function
Step-by-step explanation:
You want to know how to tell if a relation is a function or not.
RelationA relation is a map between values of the independent variable (input, x) and values of the dependent variable (output, y). Such a map can be represented many ways, including a table, graph, set of ordered pairs, dual number lines, or even a diagram showing inputs and outputs. The attachment shows such a diagram.
A relation does not need to be between numbers. Tokens of any kind can be used for input and output identifiers.
FunctionA function is a relation in which each input corresponds (maps) to exactly one output.
The relation shown on the left of the attachment is not a function because the first (top) input item (A) maps to more than one output item (B).
When a relation is expressed as ordered pairs (x, y) or a table, it will be a function if and only if no x-value is repeated.
When a relation is expressed as a graph, it will be a function if and only if no vertical line intersects more than one point on the graph. (This is the "vertical line test.")
What is the difference between the decimal forms of rational numbers and the decimal forms of irrational numbers?
The decimal forms of rational numbers can be finite, i.e. have a non infinite number of digits. In case they have infinite digits then these are periodic. This means that there's a patron of digits that is repeated infinitely.
Irrational numbers on the other hand can only have infinite digits on their decimal form and they are not periodic.
The midpoint of AB is M(6,1). If the coordinates of A are (4,8), what are the coordinates of B?
Midpoint : (6,1)
Point A : (4,8)
Point B (xb,by)
Midpoint (xm, my)=( x1+x2) /2 , ( y1+y2)/2
So:
xm= 6 = (4+xb) /2
6 = (4+xb) /2
Solve for xb
6 x 2 = 4+ xb
12 = 4+xb
12-4 = xb
8 = xb
For Yb:
my= 1 = (8+yb) /2
1 = (8+yb) /2
Solve for yb
1(2) = 8+yb
2 = 8+ yb
2-8 = yb
-6 = yb
Coordinate of B = (xb,yb) = (8,-6)
which expression is equivalent to the following 6(y+4)
Given:
6(y + 4)
Let's find the equivalent expression.
To find the equivalent expression, apply distributive property.
Distribute 6 to the numbers in the parentheses.
We have:
6(y + 4)
= 6(y) + 6(4)
= 6y + 24
Therefore, the equivalent expression is: ^
A polygon will be dilated on a coordinate grid to create a smaller polygon. The polygon is dilated usi Xthe origin as the center of dilation.Which rule could represent this dilation?
The rule for a dilation by a factor of k using the origin as the center of dilation, is:
[tex](x,y)\rightarrow(kx,ky)[/tex]In the options A and B, additions and substractions are involved. Then, they cannot be the rule of a dilation about the origin.
In the options C and D, we can see that both are dilations about the origin. The factor used in the option C is 5/4, while the factor used in the option D is 0.9.
Nevertheless, notice that 5/4 is greater than 1 and 0.9 is smaller than 1.
Then, the dilation from option C would produce a bigger polygon, while the dilation from option D will produce a smaller polygon.
Since the polygon must be a smaller one, then the rule that could represent this dilation is:
[tex](x,y)\rightarrow(0.9x,0.9y)[/tex]Which corresponds to option D.
The stem-and-leaf plot above shows house sale prices over the last
Stem (hundred thousands)
Leaf (ten thousands)
0
224667889
1
2
3
2344566678899
0122344567799
001122344566688
What was the less expensive house sold in 100,000 range? Give your
$
The least expensive house in the 100,000 range, given the stem and lead plot on house sale prices, is $120, 000.
How to find the house sale price?The stem and leaf plot on the house sale prices is given such that the stem is in hundreds of thousands and the leaf is in ten thousands.
This means that if you have a stem of 0 and a leaf of 2, the house price is:
= 0 + 20,000
= $20,000
A stem of 3 and a leaf of 4 means the house price is:
= 300,000 + 40,000
= $340,000
The cheapest house in the 100,000 range is the leaf value of 2 which means the least expensive house is:
= 100,000 + 20,000
= $120,000
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I need help with my math
Answer: Graph the value of b first on the Y - axis
The slope - intercept form of equation is
y = mx + b
where m = slope , and b = intercept
You graph the value of b on the Y - axis
While playing golf, Maurice hits the golf ball and it travels 361.87 feet. Assume the golf ball travels the same distance everyTime they hit it. Estimate the total amount of distance the ball will travel after 15 hits.Round the distance traveled each time the golf ball was hit to the nearest ten feet before calculating
Answer:
5400 feet
Explanation:
The distance the ball travels each time it was hit = 361.87 feet
First, this distance is rounded to the nearest ten feet.
[tex]361.87\approx360\:feet[/tex]Multiply 360 by 15 hits:
[tex]360\times15=5400\:feet[/tex]The total amount of distance the ball will travel after 15 hits is 5400 feet.
Find the answer to this question.
Check the picture below.
so let's get "h" and thus we can get the area of the trapezoid.
[tex]\textit{using the pythagorean theorem} \\\\ c^2=a^2+b^2\implies \sqrt{c^2 - a^2}=b \qquad \begin{cases} c=hypotenuse\\ a=adjacent\\ b=opposite\\ \end{cases} \\\\\\ \sqrt{17^2 - 8^2}=h\implies \sqrt{225}=h\implies 15=h \\\\[-0.35em] ~\dotfill\\\\ \textit{area of a trapezoid}\\\\ A=\cfrac{h(a+b)}{2}~~ \begin{cases} h~~=height\\ a,b=\stackrel{parallel~sides}{bases~\hfill }\\[-0.5em] \hrulefill\\ h=15\\ a=12\\ b=20 \end{cases}\implies A=\cfrac{15(12+20)}{2}\implies A=240~m^2[/tex]
well, for that, that'd be 2 can plus some more for the remaining 40 m², so I'd think 3 cans will do it,
[tex]\pounds 19.75\cdot \stackrel{cans}{3}\implies \text{\LARGE \pounds 59.25}[/tex]
15. Graph the system of linear equations on your calculator and select the solution.fy=5x - 10y=x+6O(-4,-10)O (10,4)O (4,10)O (4,-10)O (-4, 10)
Given:
y = 5x - 10
y = x + 6
To find:
We need to find the value of x and y from the above equations.
A 14 foot ladder is leaning against a building. The ladder makes a 45 degree angle with the building. How far up the building does the ladder reach?A. 14,2 feetB. 7 feetc. 28/2 feetD. 7,2 feet
Answer: The problem can be visualized with the help of the following diagram:
Therefore the building height can be determined by using the pythagorean theorem, the steps are as follows:
[tex]\begin{gathered} x^2+x^2=14^2 \\ \\ 2x^2=14^2 \\ \\ x=\sqrt{\frac{14^2}{2}}=\sqrt{98} \\ \\ h=x=9.899ft \\ \\ \end{gathered}[/tex]Therefore the ladder reaches 9.9ft up the wall.
Which of the following best represents the graph of a line with an undefined slope?
we know that
The slope is undefined, when we have a vertical line
therefore
the answer is the option 4 (vertical line)Acompanyhas14employeeswithasalaryof$21,000,11employeeswithasalaryof$23,800,18employeeswithasalaryof$26,300,four withasalaryof$32,000,fivewithasalaryof$39,500,andonewithasalaryof$145,700.Findthefollowingforsalarymadebyemployeesofthecompany:a)Mean b)Median c)Moded) Inafullsentence,explainwhatthisinformationtellsyouaboutwhatmoneymadebyemployeesofthecompany actuallymeansabouteachindividualemployee.
The company has different staff with different salaries scale
No of employees Salary
14 $21,000
11 $23,800
18 $26,300
4 $32,000
5 $39,500
1 $145,700
To find mean
Mean = summation of salary x no of employees / Total number of employees
[tex]\operatorname{mean}\text{ = }\frac{14\text{ x 21,000 + 11 x 23,800 + 18 x 26,300 + 4 x 32,000 + 5 x 39,500 + 1 x 145,700}}{14\text{ + 11 + 18 + 4 + 5 + 1}}[/tex]14 x 21000 = 294, 000
11 x 23,800 = 261,800
18 x 26,300 = 473,400
4 x 32,000 = 128,000
5 x 39,500 = 197,500
1 x 145,700= 145,700
Frequency = 14 + 11 + 18 + 4 + 5 + 1
Frequency = 53
[tex]\begin{gathered} \operatorname{mean}\text{ =}\frac{294,000\text{ + 261,800 + 473, 400 + 128,000 + 197,500 + 145700}}{53} \\ \operatorname{mean}\text{ = }\frac{1,\text{ 500, 400}}{53} \\ \text{Mean = 28,309.43} \end{gathered}[/tex]Mean = 28, 309.43
Mode is the highest number of employees salaries that appear most
From the table, The highest number is 18
18 number of the employees received 26, 300
The mode is $26,300
To calculate the median
Firstly, get the total number of employees in the company
The total number = 14 + 18 + 11 + 4 + 5 + 1
Total number of employees = 53
Median = total number + 1 / 2
Median = 53 + 1 /2
Median = 54/2
Median = 27th position
This implies fall between the 27th position of the employee
The median is $26, 300
check the photo please. this is my homework by the way.
m∠D = 28º , m∠C= 109º
1) Given that these triangles are congruent, we can state that the angles of both are equal, and their sides as well.
2) Let's check on the picture:
Since the triangles are congruent, we can state that m∠D = m∠A, and m∠C = m∠F
So m∠D = 28º Since 62 and 28 are complementary angles
And
m∠C = 109º Since m∠EFM and ∠EFD are supplementary
Please see the photo below. Please draw the photo on a piece of paper or computer/laptop. Thank you.
The Solution:
Given:
Required:
To construct a bisector of each of the given lines.
Steps:
1. Take your compass and put the pin on one end of the line, and then expand the compass to at least more than half the length of the line ( but not greater than the length of the line).
2. Make an arc on the upper side and the lower side of the middle of the line, and then repeat the process when you take the pin mouth of the compass to the other end of the given line.
3. Connect the pairs of intersections of the arcs to make a straight line.
The straight is the required bisector.
Below is an example with the first line:
2.2.18Find the vertex of the graph of the quadratic function. Determine whether thegraph opens upward or downward, find the y-intercept, and sketch the graph.f(x) = - x2 - 2x+3The vertex is(Simplify your answer. Type an ordered pair.)
The quadratic function is given by the following expression:
[tex]f(x)=-x^2-2x+3[/tex]The direction at which the graph opens is determined by the signal of the number multiplying x². If the number is positive then the graph opens upwards, if it is negative it opens downward. In this case it is negative so it opens donward.
The vertex of a quadratic expression can be found by the following expression:
[tex]x=\frac{-b}{2a}[/tex]Where a is the number multiplying "x²", while b is the number multiplying "x". Applying the data from the problem we have:
[tex]x=\frac{-(-2)}{2\cdot(-1)}=\frac{2}{-2}=-1[/tex]To find the value of "y" for the vertex we need to apply the coordinate for x on the expression. We have:
[tex]\begin{gathered} f(-1)=-(-1)^2-2\cdot(-1)+3 \\ f(-1)=-1+2+3=4 \end{gathered}[/tex]The coordinates of the vertex are (-1,4).
To sketch a graph we need to find the x-intercept and y-intercept of the function. These are given when f(x) = 0 and x=0 respectively. Let's find these points.
[tex]\begin{gathered} 0=-x^2-2x+3 \\ -x^2-2x+3=0 \\ x_{1,2}=\frac{-(-2)\pm\sqrt[]{(-2)^2-4(-1)(3)}}{2\cdot1} \\ x_1=-3 \\ x_2=1 \end{gathered}[/tex][tex]f(x)=-0^2-2\cdot0+3=3[/tex]The x intercept happens in two points -3 and 1, while the y intercept happens in the point 3. With this and the vertex we can sketch the function.
complete the input output table for the linear equation y=5x+1
We have the next linear equation y=5x+1
For the first row,
y=11
we substitute the value in the equation
11=5x+1
we clear x in order to know the value of x
5x=11-1
x=10/5
x=2
For the second row
x=4
we substitute the value in the equation
y=5(4)+1
y=20+1
y=21
For the third row
y=31
we substitute the value in the equation
31=5x+1
5x=31-1
5x=30
x=6
For the fourth row
x=8
we substitute the value in the equation
y=5(8)+1
y=40+1
y=41
The table of the equation
x y
2 11
4 21
6 31
8 41
A pendant has a 5/8 inch by 1/2 inch rectangular shape with a 1/3 inch silver border. What are the dimensions of the pendant, including the silver border? (Use the larger value for length and the smaller value for width.)
Length of pendant including silver border is = 23/24 inch
The width of the pendant including the silver border is = 5/6 inch
What is the sum of fractions?When adding two fractions with the same denominator (lower number), just add the numerator (upper number) and leave the denominator unchanged if the fractions are like. To add fractions with different denominators, you must rewrite the fractions so that they have a common denominator before computing the sum.
The first step is to find the least common multiple (LCM) of the denominators.This LCM will become the lowest common denominator (LCD) for the fractions.Then, rewrite each fraction by multiplying both the numerator and denominator to a number so you can get LCM as the denominator.Now add the numerators leaving denominators unchanged.For the given case,
The length of the pendant including the silver border is
(5/8)+ (1/3) = (15+8)/24
= 23/24 inch
The width of the pendant including the silver border is
(1/2) + (1/3) = (3 + 2)/6
= 5/6 inch
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10x-76=754 how do I solve this
Answer:
x=83
Step-by-step explanation:
10x-76=754
Move 76 to the other side and it becomes positive
10x=754+76
Add 754 and 76
10x=830
divide both sides by 10
10x/10=830/10
x=83
$72 for 7/1/2 hours Part A Find the unit rate. How much would it be for 40 hours?
We have that for seven and a half hours, you get 72$, then we have the following rule of three:
[tex]\begin{gathered} 72\rightarrow7\frac{1}{2}hours \\ x\rightarrow1hour \end{gathered}[/tex]then we have that:
[tex]\begin{gathered} x=\frac{72\cdot1}{7\frac{1}{2}}=\frac{72}{\frac{15}{2}}=\frac{144}{15}=9.6 \\ x=9.6 \end{gathered}[/tex]therefore, for each hour, you get $9.6
So, for 40 hours we have:
[tex]40\cdot9.6=384[/tex]finally, we have that for 40 hours you get $384
Rhianna is baking a cake and some cookies for a party. She used 4 1/2 cups of flour for the cake. For each tray of cookies, she needs 2 1/2 cups of flour. She decides to use at least 15 cups of flour for the cake and the cookies.Assuming she can make fractional trays of cookies, how many trays, x, can she make?
The first step is to find how many cups of flour she has left to bake the cookies after baking the cake. To do it, substract the amount of flour she needs for the cake to the total amount of flour she decided to use.
[tex]15-(4+\frac{1}{2})=15-4.5=10.5[/tex]She has 10.5 cups of flour to bake the cookies. To find how many tray of cookies, solve the following equation for x:
[tex]\begin{gathered} (2+\frac{1}{2})x=10.5 \\ (2.5)x=10.5 \\ x=\frac{10.5}{2.5} \\ x=\frac{21}{5} \end{gathered}[/tex]She can make 21/5 trays of cookies. Written as a mixed number it is 4 1/5, it means she can make 4 1/5 or less trays of cookies.
How to actually do this because it’s say I’m wrong
we have that
the algebraic expression that represents this situation is
15-(9+2.65+1.35+2(1.74))
therefore
George needs to put a parenthesis before the 9
Need to find out how to solve 4/p=11/2
To solve the equation for p, we can first apply the cross product method, that is, we multiply the numerator and denominator that each line of the "X" connects.
Then, we have:
[tex]\begin{gathered} \frac{4}{p}=\frac{11}{2} \\ 4\cdot2=11\cdot p \\ 8=11p \end{gathered}[/tex]Now, we divide by 11 from both sides of the equation:
[tex]\begin{gathered} \frac{8}{11}=\frac{11p}{11} \\ \boldsymbol{\frac{8}{11}=p} \\ \text{ or} \\ 0.72=p \end{gathered}[/tex]Therefore, the value of p that satisfies the given equation is 8/11 or 0.72.
A glider files 8 miles south from the airport and then 15 miles east. Then it files in a straight line back to the airport. What was the distance of the glider's last leg back to the airport ?
The schematic diagram below represents the path followed by the glider,
The point A represents the location of the airport.
Observe that the path of the glider forms a right angled triangle ABC.
So the hypotenuse AC can be calculated by using Pythagoras Theorem as,
[tex]\begin{gathered} AC^2=AB^2+BC^2 \\ AC^2=(8)^2+(15)^2 \\ AC^2=64+225 \\ AC^2=289 \\ AC^2=17^2 \\ AC=17 \end{gathered}[/tex]Thus, the distance of the glider's last leg back to the airport is 17 miles.
So the second option is the correct choice.
Question 3: 12 ptsA circular pool is surrounded by a circular walkway. The radius of the pool is y - 4 and the radius of the full circleformed by the walkway is y + 4. Write a polynomial that represents the area of just the walkway itself, notincluding the space covered by the pool.The area of a circle is given by A = r7?, where r represents the radius of the circle.)O 16ny + 32O 16TyO-16nyO 32
Explanation
Step 1
the area of a circle is given by:
[tex]\begin{gathered} \text{Area}_c=\pi r^2 \\ \text{where r is the radius} \end{gathered}[/tex]so, the area of teh walkway will be the difference of areas
[tex]\begin{gathered} A_{walkway}=A_{entire\text{ circle}}-Area_{pool} \\ \text{replace} \\ A_{walkway}=\pi(y+4)^2-\pi(y-4)^2 \end{gathered}[/tex]Step 2
expand the polynomius:
[tex]\begin{gathered} A_{walkway}=\pi(y+4)^2-\pi(y-4)^2 \\ A_{walkway}=\pi(y^2+8y+16)^{}-\pi(y^2-8y+16) \\ A_{walkway}=\pi(y^2+8y+16)^{}-\pi(y^2-8y+16) \\ A_{walkway}=\pi(y^2+8y+16-(y^2-8y+16)) \\ A_{walkway}=\pi(y^2+8y+16-y^2+8y-16)) \\ A_{walkway}=\pi(16y) \\ \end{gathered}[/tex]therefore, the answer is
[tex]16\text{ }\pi\text{ y}[/tex]I hope this helps you
Find the distance between the two points in simplest radical form.(8,6) and (3,−6)
Given
Two points (8,6) and (3,−6)
Find
distance between the two points
Explanation
Distance between the two points is given by
[tex]d=\sqrt{(x_2-x_1)^2+(y_2-y_1)^2}[/tex]so , distance between (8,6) and (3,−6) is
[tex]\begin{gathered} d=\sqrt{(3-8)^2+(-6-6)^2} \\ d=\sqrt{25+144} \\ d=\sqrt{169} \\ d=13 \end{gathered}[/tex]Final Answer
Therefore , the distance between these two points is 13
The worktop is to be covered with square tiles each measuring 4cm by 4cm. How many tiles are needed to cover the worktop.
PLease help and show clear explaination and answer now
ITS FOR LEVEL 2 GET DIFFERENT ANSWERS
1900 tiles are needed to cover the worktop.
From the question, we have
The surface area of the worktop is 3.04m squared.
The worktop is to be covered with square tiles each measuring 4cm by 4cm.
Number of tiles = (3.04*10000)/(4*4)
=1900
Multiplication:
To determine the sum of two or more numbers, mathematicians multiply the numbers. It is a basic mathematical procedure that is widely used in daily life. Multiplication is used when we need to mix groups of like sizes. Multiplication is a representation of the underlying idea of adding the same number repeatedly. The outcome of multiplying two or more numbers is referred to as the product of those numbers, and the factors are the quantities that are multiplied. Multiplying the numbers makes it simpler to add the same number repeatedly.
Complete question:
The worktop is to be covered with square tiles, each measuring 4 cm by 4 cm. How many tiles are needed to cover the worktop?The surface area of the worktop is 3.04m squared.
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Which graph best represent a line perpendicular to the line of the equation y= -1/3x - 7 ?
The equation of the given line is
[tex]y=-\frac{1}{3}x-7[/tex]Where: The slope is -1/3
Perpendicular lines have additive reciprocal slopes which means if the slope of one of them is m, then the slope of the other is -1/m
Then the slope of the perpendicular line to the given line is 3
So, we have to look for the graph of positive slope
The graphs of A and D have positive slopes because the directions of the lines are increasing from left to right
Then we have to find the slope of each line to find the correct choice
Since the slope of the line is 3, then the y part increases 3 units for 1 part increases of x
We can see that in graph A
The answer is A
4 i Rotate the figure 90° counterclockwise about the origin, and then reflect in the x-axis. Polygon 1. Move PREV 1 2 3
to rotate 90 degrees counterclockwise we must transform the points like this
[tex](x,y)\longrightarrow(y,-x)[/tex]and then invert the sign of the y-coordinate or the second coordinate of each point, so the total transformation is
[tex](x,y)\longrightarrow(y,x)[/tex]now, transform each point
[tex](0,4)\longrightarrow(4,0)[/tex][tex](0,1)\longrightarrow(1,0)[/tex][tex](2,1)\longrightarrow(1,2)[/tex][tex](2,4)\longrightarrow(4,2)[/tex]Consider the triangle shown below where m∠C=50∘, b=11 cm, and a=23 cm.Use the Law of Cosines to determine the value of x (the length of AB in cm).x=
The Law of Cosines is:
[tex]c^2=a^2+b^2-2ab\cdot\cos C[/tex]Where "a", "b" and "c" are sides of the triangle and "C" is the angle opposite side "c".
In this case you know that:
[tex]\begin{gathered} m\angle C=50\degree \\ b=11\operatorname{cm} \\ a=23\operatorname{cm} \\ c=x \end{gathered}[/tex]Then, you can substitute values as following:
[tex]\begin{gathered} c^2=a^2+b^2-2ab\cdot\cos C \\ x^2=(23\operatorname{cm})^2+(11\operatorname{cm})^2-2(23\operatorname{cm})(11\operatorname{cm})\cdot\cos (50\degree) \end{gathered}[/tex]Finally, evaluating, you get that the answer is:
[tex]\begin{gathered} \\ x\approx18.02\operatorname{cm} \end{gathered}[/tex]