Answer:
Approximately 23 cups of coffee
Step-by-step explanation:
Break even = Fixed cost/Selling price - variable cost
Fixed cost = $75
Selling price = $4.50
Variable cost = $1.25
Break even = $75/$4.50 - $1.25
= 23.076923077
Approximately = 23
Therefore, Mary has to sell approximately 23 cups of coffee daily in order to break evem
CAN SOMEBODY PLEASE HELP ME WITH THIS QUESTION!!!!
Answer:
nope sorryyyyyy
Step-by-step explanation:
Which of the following values is the solution of w– 13 = 25?
48
325
38
12
Answer:
w = 38
Step-by-step explanation:
add 13 to 25 to get 38 so w = 38
What is 5 + 2^3 divided by 4 - 2
USE PENDAS
and show step by step of how you got to your answer
Will give BRAINLEST though only if the work you showed is correct AND the answer.
Answer:
1. if its (5+2^3)/4-2 then its 6.5
2. if its just 5+2^3/4-2 then its 5
Step-by-step explanation:
1. (5+2^3)/4-2
(5+8)/4-2
(13)/4-2
(13)/2
6.5
2. 5+2^3/4-2
5+8/4-2
5+2-2
7-2
5
Graph the line with the equation y = -x - 5.
Find the y-intercept and x-intercept
1) Find the x-intercept, substitute y = 0
0 = -x-5
5=-x
x= -5
Therefore, the x-intercept is at -5
2) Find the y-intercept, substitute x = 0
y= -0 - 5
y = 0 - 5
y = -5
Therefore, the y-intercept is at -5 too.
Plot the line graph from x = -5 to y = -5 and it should be like this.
Note - You can easily find the y-intercept just looking at "b value" from y = mx+b when m is the slope and b is the y-intercept.
Answer:
Step-by-step explanation:
1) since -5 is graphed in the equation we know the y-intercept is -5
2) since we already know the point (0,-5) form the y-intercept, we pick x-values and plug them into the equation. I'll use -4, 3, and 9
y=-x-5 y=-x-5 y=-x-5
y=-9-5 y=-3-5 y=--4-5
y=-14 y=-8 y=-1
3) we then plot the 4 points we found and draw a straight line connecting them, and then we put arrows on either side of the line because the question did not say that it was a line segment.
4) And check your work by going to Google and typing "student desmos graphing calculator" and typing in your equation.
pick the one with the greatest value.
21
|-23|
|-32|
-32
Answer:
32
Step-by-step explanation:
Absolute value of |-32| = 32
Answer: |-32|
Step-by-step explanation:
Select the correct answer.
Solve the following inequality.
17 5-3x + 2 5 26
11
O
B.
-
-
On sos-
-3 sos-
OC. 15 < r < 24
OD. -8 < x < -5
19
3
Answer:
D
Step-by-step explanation:
Given
17 ≤ - 3x + 2 ≤ 26 ( subtract 2 from each of the 3 intervals )
15 ≤ - 3x ≤ 24
Divide the 3 intervals by - 3, reversing the symbols as a result of dividing by a negative quantity.
- 5 ≥ x ≥ - 8 , that is
- 8 ≤ x ≤ - 5 → D
[tex]17 \leqslant - 3x + 2 \leqslant 26[/tex]
Subtract sides -2
[tex]17 - 2 \leqslant - 3x + 2 - 2 \leqslant 26 - 2 \\ [/tex]
[tex]15 \leqslant - 3x \leqslant 24[/tex]
Divided sides by -3
=======================================
Point :
When the sides of a inequality multiply or divided by an negative number It changes direction and returns them.
=======================================
Thus ;
[tex] \frac{15}{ - 3} \geqslant \frac{ - 3}{ - 3}x \geqslant \frac{24}{ - 3} \\ [/tex]
[tex] - 5 \geqslant x \geqslant - 8[/tex]
[tex] - 8 \leqslant x \leqslant - 5[/tex]
Thus the correct answer is (( D )) .
_________________________________
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Answer:
3x+2x=95
5x=95
X=19
Step-by-step explanation:
it may help you to understand
Identify the slope and y-intercept of the equation: -2x + 2y = -10
Answer:
Slope: 5/3, y-intercept (0,-3)
Step-by-step explanation:
The sum of John and Dave's ages is 63. Dave is is six years less then twice Johns
age. How old is Dave?
Answer:
The present age of Dave is 40 years
Step-by-step explanation:
Let the present age of Johns be x
We are given that Dave is six years less then twice Johns age.
Dave's present age = 2x-6
We are also given that The sum of John and Dave's ages is 63.
So, [tex]x+2x-6=63[/tex]
[tex]3x-6=63[/tex]
[tex]3x=63+6[/tex]
[tex]3x=69[/tex]
[tex]x=\frac{69}{3}[/tex]
[tex]x=23[/tex]
Dave's present age = 2x-6=2(23)-6=40
Hence The present age of Dave is 40 years
Which statement is true about the graphed function?
3
O F(x) <0 over the interval (_, 4)
O F(x) <0 over the interval (-0, -3)
O F(x) > 0 over the interval (-4,-3)
O F(x) > 0 over the interval (
-4)
-2
X
-12
Save and Exit
NEX
SER
Mark this and retum
Hi
Answer:
o
0 F x>o v 0 cover the interval (-4,-3
The statement which is true about the graphed function is that F(x) > 0 over the interval (-∞, -4).
What is Function?A function is a relation from a set A to a set B where the elements in set A only maps to one and only one image in set B. No elements in set A has more than one image in set B.
Given is a graph of a function.
The options contains the open interval (-∞, -3) and (-∞, -4).
It is clear that along this interval, the graph is situated above the X axis.
This means that the values of y is all greater than 0.
At x = -4, F(x) = 0
For all x < -4, F(x) > 0
So the correct statement is F(x) > 0 over the interval (-∞, -4).
Hence F(x) > 0 over the interval (-∞, -4).
Learn more about Functions here :
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brainliest to whoever answers first!!
A quadrilateral is plotted on the coordinate plane. Each of its vertices undergoes the same transformation. which rule below represents a transformation that does NOT preserve the length of the sides of the quadrilateral
Answer: bruh i have the exact same question
Step-by-step explanation:
PLEASE HELP!!! Isabell needs to memorize words on a vocabulary list for Spanish class. She has memorize 12 of the words, which is 3/4 of the list. How many words are on the list?
Answer:
16
Step-by-step explanation:
3 x 4 = 12
4 x 4 = 16
Answer:
15
Step-by-step explanation:
How many liters of a 40% acid solution must be added to 12 liters of a 20% solution to obtain a 25% solution?
Answer:
6
Step-by-step explanation:
12 x 2 = 24
24 : 4 = 6
Can somebody who remembers how to do this plz answer correctly thx!!!!
(Will mark as brainliest)
:D
Answer:
11.
[tex]1 \times \frac{3}{8} [/tex]
12.
[tex]2 \times \frac{5}{6} [/tex]
Find the absolute value of - 4 2/11
Answer:
4 2/11
Step-by-step explanation:
The absolute value is the distance between a number and zero. This means that absolute value cannot be negative because you cannot travel a negative distance. The distance between - 4 2/11 is 4 2/11.
Hope This Helps :)
The absolute value of -4(2/11) is 46/11.
What is an expression?An expression is a way of writing a statement with more than two variables or numbers with operations such as addition, subtraction, multiplication, and division.
Example: 2 + 3x + 4y = 7 is an expression.
We have,
-4(2/11)
= -46/11
Now,
The absolute value.
= |-46/11|
= 46/11
Thus,
The value is 46/11.
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8.25 divided by 53790 and 825 divided by 5379000
Answer:
8.25÷53790 is 0.00015337423 and the other one is 0.00015337423
1. The solution of the expression '' 8.25 divided by 53790 '' will be 0.00015337423.
2. The solution of the expression '' 825 divided by 5379000 '' will be 0.00015337423.
What is Division method?
Division method is used to distributing a group of things into equal parts. Division is just opposite of multiplications.
For example, dividing 20 by 2 means splitting 20 into 2 equal groups of 10.
Given that;
The mathematical expression are;
1. 8.25 divided by 53790
2. 825 divided by 5379000
Now,
After divide we get;
1. 8.25 divided by 53790 = 8.25 ÷ 53790
8.25 ÷ 53790 = 8.35 / 53790
= 835 / 5379000
After divide we get;
= 0.00015337423
Thus, 8.25 ÷ 53790 = 0.00015337423
2. The expression is;
825 divided by 5379000 = 825 ÷ 5379000
= 825 / 5379000
= 0.00015337423
Thus, 825 ÷ 5379000 = 0.00015337423
So, Both the expression have same solution.
Therefore,
1. The solution of the expression '' 8.25 divided by 53790 '' will be 0.00015337423.
2. The solution of the expression '' 825 divided by 5379000 '' will be 0.00015337423.
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5) Evaluate:
7/8 +(-2/3)
Your answer
Answer:
0.208333.....
or
Step-by-step explanation:
5 / 4
if you look at 7/8 + 2/3
remove the ( you do not need them
now look at 7/8 -2/3
add fractions together
it becomes 5/4
results should be 5/4
there's your answer I hope it works please give me brainiest
To trisect an ___ angle you first construct an equilateral triangle.
A. Acute
B. Right
C. 60-degree
D. Obtuse
To trisect a 60-degree angle you first construct an equilateral triangle.
Option C is the correct answer.
What is an angle?The angles between two lines are the angles formed by two intersecting lines, measured in degrees or radians.
Several different types of angles can be formed between two lines, including acute angles, right angles, and obtuse angles.
We have,
To trisect a 60-degree angle, we can use the fact that an equilateral triangle has three 60-degree angles.
The steps to trisect a 60-degree angle using an equilateral triangle are as follows:
Draw an equilateral triangle with one of its vertices at the angle to be trisected.
Draw a line from the vertex of the angle to the opposite side of the triangle, dividing the angle into two 30-degree angles.
Draw a line from the vertex of the angle to the point where the opposite side intersects the circle centered at the vertex with a radius equal to the length of one side of the equilateral triangle. This will divide one of the 30-degree angles into two 15-degree angles.
Draw a line parallel to the opposite side of the triangle from the point where the 15-degree angle is divided to the adjacent side of the triangle. This will trisect the 60-degree angle into three 20-degree angles.
Thus,
By constructing an equilateral triangle, we can trisect a 60-degree angle.
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Help asap please show your work
Answer:
false
Step-by-step explanation:-3 in the () means -3 x -3 which is positive 9, where as without () it's -3x3 which is -9. Positive 9 is bigger than -9.
Answer:
False
Step-by-step explanation:
-3^2 = -(3^2) = -(3 × 3) = -9
(-3)^2 = -3 × -3 = 9
-9 < 9
Can someone help me please
A positive number exceeds four times its reciprocal by 3.
Find the number.
Answer:
the same
Step-by-step explanation:
because the binomial and trinomial is the same
HELP ME PLEASE THANK YOU
Write a function that models the following description: A man drove a total of 40 miles over a 2-hour period. (1 point)
Answer:
The function is Speed, f(t) = x/t
Step-by-step explanation:
The given information are;
The distance the man drove = 40 miles
The duration of time the man drove = 2-hours
Given that a function maps each item of the input domain to a single item of the output domain, we can have the following relation for the above parameters;
Speed = (Distance travelled)/(Time taken)
Where, speed f(t), is a function of the time taken, t, to travel a distance x
The function is therefore;
Speed, s = f(t) = x/t
Speed = 40/2 = 20 mile per hour.
Answer:
The function is Speed, f(t) = x/t
Step-by-step explanation:
its late but i hope it helps
Diego's club earns money for charity when members of the club perform community service after school,each student who does community service, the club earns $5. There are 12 students in the club,The total dollar amount earned, E. Is a function of the number of members who perform communityservice, n. Is 24 a possible output
Answer:
No
Step-by-step explanation:
Given that:
Amount earned when a student does comminty service = $5
Number of students in club = 12
Amount earned E, is a function of number of members (n) who does community service.
Hence,
E = n * amount earned per member
Is 24 a possible output?
To test, then E = 24
24 = n * 5
24 = 5n
24/5 = 5n/5
4.8 = 5
Hence, 24 is not a possible output, be use number of membwra cannot be a decimal
simplify -9 / 6 / 3 / -2
Answer:
o resultado é 961
foi mal se erei
Engineers must consider the breadths of male heads when designing helmets. The company researchers have determined that the population of potential clientele have head breadths that are normally distributed with a mean of 6.4-in and a standard deviation of 0.9-in. In what range would you expect to find the middle 50% of most head breadths? Between and . If you were to draw samples of size 47 from this population, in what range would you expect to find the middle 50% of most averages for the breadths of male heads in the sample? Between and . Enter your answers as numbers. Your answers should be accurate to 2 decimal places.
Complete Question
Engineers must consider the breadths of male heads when designing helmets. The company researchers have determined that the population of potential clientele have head breadths that are normally distributed with a mean of 6.4-in and a standard deviation of 0.9-in.If you were to draw samples of size 47 from this population, in what range would you expect to find the middle 50% of most averages for the breadths of male heads in the sample
Answer:
The range is from [tex] \=x_1 = 6.312 [/tex] to [tex] \=x_2 = 6.488 [/tex]
Step-by-step explanation:
From the question we are told that
The mean is [tex]\mu = 6.4 \ in[/tex]
The standard deviation [tex]\sigma = 0.9 \ in[/tex]
The sample size is n = 47
Generally the standard error is mathematically represented as
[tex]\sigma_{\= x} = \frac{0.9}{\sqrt{47} }[/tex]
=> [tex]\sigma_{\= x} = 0.13128 [/tex]
Generally the proportion where the middle 50% of most average for the breaths of male heads in the sample is mathematically evaluated as
[tex]P(\= x_1 < \= X < \= x_2 ) = P(\frac{\=x_1 - \mu }{\sigma_{\= x} } < \frac{\= X - \mu }{\sigma_{\= x} } < \frac{\=x_2 - \mu }{\sigma_{\= x} } ) = 0.5[/tex]
Generally [tex]\frac{\= X - \mu }{\sigma_{\= x} } = Z(The \ standardized \ value \ of \ \= X )[/tex]
So
[tex]P(\= x_1 < \= X < \= x_2 ) = P(\frac{\=x_1 - 6.4}{ 0.13128 } <Z < \frac{\=x_2 - 6.4 }{0.13128} ) = 0.5[/tex]
From the z table the z-score of 0.5 is
[tex]z-score = \pm 0.674[/tex]
So
[tex]\frac{\=x_1 - 6.4}{ 0.13128 } = -0.674[/tex]
[tex] \=x_1 = 6.312 [/tex]
and
[tex]\frac{\=x_2 - 6.4}{ 0.13128 } = 0.674[/tex]
[tex] \=x_2 = 6.488 [/tex]
The length y of a rectangle is four less than three times the width x. The perimeter of the rectangle is 16 cm.
There is no requirement in the question. I'll calculate the area of the rectangle to help you with this question.
Answer:
[tex]A=15\ cm^2[/tex]
Step-by-step explanation:
System of Equations
Let's call y to the length of a rectangle, x to its width. There are two conditions that will help us to solve for x and y.
The length is four less than three times the width. That is written as:[tex]y=3x-4[/tex]
The perimeter of the rectangle is 16 cm. The equation for this condition is:[tex]2x+2y=16[/tex]
Divide by 2:
[tex]x+y=8[/tex]
To solve the system, we'll substitute the y in the first equation into the second:
[tex]x+3x-4=8[/tex]
Joining like terms:
[tex]4x=8+4[/tex]
Solving:
[tex]x=12/4=3[/tex]
Find the value of y:
[tex]y=3x-4=3*3-4=9-4=5[/tex]
Thus, the length of the rectangle is 5 cm and its width is 3 cm. The area is calculated as:
[tex]A=xy=3\ cm\cdot 5\ cm=15\ cm^2[/tex]
[tex]\boxed{A=15\ cm^2}[/tex]
Can someone help me out please ?
Answer:
second one pretty sure
Step-by-step explanation:
MAX POINTS!! PLEASE HELP WITHIN 2 DAYS Using the three indicated points on the given line and the concept of similar triangles, show and explain why the slope of the line is the same between any two of these three points. Calculate the slope of the line.
Answer:
The reason is because there is a constant rate of change. notice how the rise over run stay the same even though they dont fall on the exact point's.
Use rise over run to find the first part of your answer, then use the slope formula to find out the rest. the slope formula is m = rise over run.
Step-by-step explanation:
where m= slope, and rise over run will help you find the slope.
A truck is leaving a post office and heading out to deliver mail. The table shows the truck's distance d from the post office at time t. Calculate the average rate of change over the interval from 8 to 15 minutes.
Answer:
1km per minute
Step-by-step explanation:
Given the table in the picture :
The average rate of change over the interval from 8 to 15 minutes will be :
Change in distance / change in time
Change in distance between 8 and 15 minutes :
Distance d1 at 8 minutes t1 = 7km
Distance d2 at 15 minutes t2 = 14km
Average rate of change = (d2 - d1) / (t2 - t1)
Average rate of change = (14 - 7)km / (15 - 8)min
Average rate of change = 7km / 7minutes
Average rate of change = 1km per minute
Answer:
The rate of change is 1 kilometer per minute
Step-by-step explanation: