9514 1404 393
Answer:
n/4 -5
Step-by-step explanation:
The quotient of the input and 4 is n/4 or n ÷ 4. To decrease that by 5, we need to subtract 5.
n/4 -5
Lamar, an artist, plans to paint and sell some miniature paintings. He just bought some brushes for $10, and paint and canvas for each painting costs $45; he will sell each painting for $50. Once Lamar sells a certain number of his paintings, he will be breaking even. How many paintings will that be?
Answer:
2
Step-by-step explanation:
If he sells and makes x paintings, his expenses will he 10+45x and his revenue will be 50x.
50x = 45x + 105x = 10x = 2The break-even point is the point at which total cost and total income are equal. For breakeven, Lamar needs to sell 2 paintings.
What is breakeven?In economics, business, and especially cost accounting, the break-even point is the point at which total cost and total income are equal, i.e. "even."
Let the number of paintings that Lamar makes and sells at the break-even point be represented by x.
Given that Lamar bought some brushes for $10, and paint and canvas for each painting cost $45. Therefore, the total cost of making x number of paintings is,
Total cost of x painting = $10 + $45(x)
Also, the selling price of each painting is $50. Therefore, the revenue generated from x paintings is,
Revenue generated = $50(x)
Further, at the breakeven point, the total cost of production of any product is equal to the revenue generated by the product. Therefore, we can write,
Total cost of x painting = Revenue generated
$10 + $45(x) = $50(x)
10 + 45x = 50x
10 = 50x - 45x
10 = 5x
x = 10/5
x = 2
Hence, For breakeven Lamar needs to sell 2 paintings.
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In ΔFGH, f= 67 inches, m∠G=66° and m∠H=30°. Find the length of g to the nearest inch
Answer:
38 inches
Step-by-step explanation:
We can use the Law of Sines to solve for the length of side g:
sin(66°)/67 = sin(30°)/g
Cross-multiplying, we get:
g*sin(66°) = 67*sin(30°)
Dividing both sides by sin(66°), we get:
g = 67*sin(30°)/sin(66°) ≈ 38 inches (rounded to the nearest inch)
Therefore, the length of side g is approximately 38 inches.
A chemist has a bottle of a 1% acid solution and a bottle of a 5% acid solution. She wants to mix the two solutions to get 100 ml of a 4% acid solution. Follow the steps below to find how much of each solution she should use.
Part 2 out of 3
Use the information in the table to write a system of equations.
Answer:
12% alkaline
Step-by-step explanation:
The amount of 1% acid solution she needs to mix is 25 ml while the percentage of 5% acid solution she needs to mix is 75 ml.
Given to us
A chemist has a bottle of a 1% acid solution and a bottle of a 5% acid solution.
She wants to mix the two solutions to get 100 ml of a 4% acid solution.
Assumption
Let the amount of 1% acid solution be x ml, and the amount of 5% acid solution be y ml.
Total Amount of the Final SolutionAs the chemist wants to mix the two solutions to make 100 ml of solutions, therefore,
amount of 1% acid solution + amount of 5% acid solution = 100ml
x + y = 100.....equation 1
Solving for y,
y = 100 - x
What is the % of the acid in the mixture?We know that the mixture is having a 4% concentration and is 100 ml in volume.
\((1\%)x+(5\%)y = (4\%)100\\0.01x+0.05y=0.04\times 100\\\)
Substitute the value of y,
\(0.01x+0.05(100-x)=0.04\times 100\\\\0.01x + (0.05\times 100)-(0.05\times x) = 4\\\\0.01x + 5 -0.05x =4\\\\0.01x-0.05x = 4-5\\\\0.04x = 1\\\\x=\dfrac{1}{0.04}\\\\x = 25\ ml\)
Substitute the value of x in equation y,
\(x+y = 100\\25 +y =100\\y = 100-25\\y=75\ ml\)
Hence, the amount of 1% acid solution she needs to mix is 25 ml while the percentage of 5% acid solution she needs to mix is 75 ml.
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Qu. In a triangle ABC, side AB has length 10cm, side AC has length 5cm, and angle BAC = θ
where θ is measured in degrees. The area of triangle ABC is 15cm^2
(a) Find the two possible values of cos θ
Given that BC is the longest side of the triangle,
(b) find the exact length of BC.
Answer:
To find cosθ, use the formula for the area of a triangle i.e. AREA=1/2 x a x b x sinC.=> For this case: 15= 1/2 x 10 x 5 x sinC to find sinC.=> SinC = 3/5 thus, Arcsin(3/5)=+- 4/5 or +-0.8
To find the exact length of BC, use the cosine rule.=> c(sq)=a(sq)+b(sq)-2abCosC=> c(sq)=10(sq)+5(sq)-2(10)(5)(+-4/5)=> c(sq)= Square root of 205
help me please
Indicate the method you would use to prove the two triangles. If no method applies, enter "none".
AAS
SSS
NONE
SAS
ASA
Based on the information given, we know that the two triangles have two pairs of congruent angles. This is sufficient to prove that the two triangles are congruent using the AAS (Angle-Angle-Side) postulate. Therefore, the method I would use to prove the two triangles congruent is **AAS**.
A typist type 1800 words in 1 hour. find the number of words she can type per minute.
Answer:
1800/60=30
Step-by-step explanation:
Answer:
the first answer is correct
i need help now plz it homework and i need hep on it plz help
Step-by-step explanation:
The right trangular prism has 5 surface areas. 2 of them are triangles and 3 of them are rectangles.
Area of triangle
= 0.5(3/2)(2) = 3/2 square units.
Area of 1st rectangle
= (5/2)(5) = 25/2 square units.
Area of 2nd rectangle
= (3/2)(5) = 15/2 square units.
Area of 3rd rectangle
= (2)(5) = 10 square units.
Total Surface Area
= 2 * (3/2) + (25/2) + (15/2) + 10
= 33 square units. (A)
Use the information in the table to find the indicated probability.
Number of Degree Recipients at a Local College
Degree Male Female
Associate's 224 387
Bachelor's 547 776
Advanced 245 322
Find P(the degree is a bachelor's)
The Probability for the recipient degree is a bachelor's is 896 / 2501.
What is the Probability?
Probability means possibility. It is a branch of mathematics that deals with the occurrence of a random event. The value is expressed from zero to one. Probability has been introduced in Maths to predict how likely events are to happen. The meaning of probability is basically the extent to which something is likely to happen.
Number of Degree Recipients at a Local College
Degree Male Female
Associate's 224 387
Bachelor's 547 776
Advanced 245 322
Total Bachelor's degree recipients = 547+322 = 896
Total Recipients at local college = 224 + 387 + 547 + 776 + 245 + 322 = 2501
P(the degree is a bachelor's) = 896 / 2501
Thus, The Probability for the recipient degree is a bachelor's is 896 / 2501.
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Which postulate or theorem proves triangle SQY~ triangle PTY? 12mm 8mm 45 degrees 2mm 6mm 4mm
By SSS postulate, triangle SQY is similar to triangle PTY.
From the given figure, consider ΔSQY and ΔPTY.
Two triangles are similar if the angles are the same size or the corresponding sides are in the same ratio.
Here, SQ/PT = SY/PY = YQ/YT
8/4 = 12/6 = 4/2
2 = 2 = 2
By SSS postulate, ΔSQY~ΔPTY.
Hence, by SSS postulate, triangle SQY is similar to triangle PTY.
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Please help me I’ll mark you brainly
On solving the provided question, we can say that - here in graph we have on solving equation \(2x^2+ 9y^2 \\\) = \(8 + 9 = 17\)
What is equation?An equation is a formula in mathematics that joins two statements with the equal symbol = to represent equality. The definition of an equation in algebra is a mathematical statement proving the equality of two mathematical expressions. In the equation 3x + 5 = 14, for instance, the terms 3x + 5 and 14 are separated by an equal sign. The link between two phrases on either side of a letter is expressed mathematically. There is often only one variable, which is also the symbol. instance: 2x - 4 Equals 2.
here,
from graph, x= 2
y = 1
\(2x^2+ 9y^2 \\\)
\(8 + 9 = 17\)
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Two girls divided $1.60 in the ratio 5 : 3. How much more does one girl get than the other?
let's convert those $1.60 to pennies, that's 160 pennies, now, let's divide those 160 by (5 + 3) and distribute between the girls accordingly
\(\stackrel{Girl1}{5}~~ : ~~\stackrel{Girl2}{3} ~~ \implies ~~ \stackrel{Girl1}{5\cdot \frac{160}{5+3}}~~ : ~~\stackrel{Girl2}{3\cdot \frac{160}{5+3}} ~~ \implies ~~ \stackrel{Girl1}{5\cdot 20}~~ : ~~\stackrel{Girl2}{3\cdot 20} \\\\\\ \stackrel{Girl1}{100}~~ : ~~\stackrel{Girl2}{60}\qquad \textit{one girl got \underline{40 more cents } than the other girl}\)
it cost 42 dollars to rent a bike for 8 hours, how many hours of bike use does the customer get per dollar
Answer:
About .19 cents for the unit rate
Step-by-step explanation:
a) Calculate the length of Road C in the image below. Show your work.
b) If a student rides her bike at an average speed of 19.5 km/h, how long will it take her to travel to school using Road C and Road B? Show your work.
c) How much quicker will it be for this student to travel to school along Road A? Show your work.
Using Pythagoras' Theorem, we found the length of Road C and the respective time taken to travel along each road.
What is meant by Pythagoras' theorem?
The Pythagoras' theorem, is a basic relationship between a right triangle's three sides in Euclidean geometry. According to this statement, the areas of the squares on the other two sides add up to the size of the square whose side is the hypotenuse. In essence, Pythagoras' theorem is used to determine a triangle's angle and length of an unknown side. This theorem allows us to obtain the hypotenuse, perpendicular, and base formulas.
The given figure is a right triangle.
The length of road A = 16.01 km
The length of road B = 10 km
a) The length of road C can be found using Pythagoras' theorem.
From figure,
A² = B² + C²
16.01 ² = 10² + C²
C² = 156.32
C = 12.5 km
b) Speed of bike = 19.5 km/h
Length of road C = 12.5 km
Time = Length/speed = 12.5/19.5 = 0.64 hours
Length of road B =10 km
Time = Length/speed = 10/19.5 = 0.51 hours
c) Length of road A = 16.01
Time taken = Length/speed = 16.01/19.5 = 0.82 hours.
Therefore using Pythagoras' Theorem, we found the length of Road C and the respective time taken to travel along each road.
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Which of the following situations WOULD NOT represent a binomial application? A. Choosing a card randomly from a standard deck and noting its color (remember color has only two outcomes black or red) B. Choosing a card randomly from a standard deck and noting whether its a face card C. Choosing a card randomly from a standard deck and noting its suit D. Choosing a card randomly from a standard deck and noting whether or not it's an ace
Answer:
Choosing a card randomly and noting its suit
Step-by-step explanation:
Choosing a card randomly and noting its suit
This is because binomial distributions only work for bernoulli trials (a trail in which there are only two outcomes)
What is 656 divided by 78
Answer:
8.4102
Step-by-step explanation:
656÷78=8.4102
Answer
8.41025641026
When you do long division that comes out to be your answer.
GIVING 35 POINTS TO WHOEVER ASWERS CORRECTLY!
Which of the following proves these two triangles congruent by AAS?
I think the correct answer is D
What is 2,443,802,280 rounded to the nearest ten million
Answer:2,440,000,000
Step-by-step explanation:
Which graph represents an exponential function?
Answer:The function that represents an exponential function is the 4th graph and it can be modeled as y = aeᵇˣ.
What are exponential functions?
The exponential functions are written in the form of y = aeᵇˣ, where the output y increases exponentially for the input x.
In order to find the graph that represents an exponential function, we will discuss each of the following graphs,
For the 1st graph, (Black),
In the first graph, the graph is of a parabola, and the function which represents this kind of graph is a quadratic equation, therefore, this graph represents a parabolic equation. It is given by the function,
y=ax²+bx+c or y=a(x-h)²+k
For the 2nd graph, (Red),
In the second graph, the graph represented is the graph of a reciprocal function, the function that can be represented by the graph,
y=a/x + b
For the 3rd graph, (Blue),
In the third graph, the graph represented is the graph of root function, it can be modeled as,
y = a+√(x+b)
For the 4th graph, (Green),
In the fourth graph, the graph represented is the graph of an exponential function, and it can be modeled as,
y = aeᵇˣ
Hence, the function that represents an exponential function is the 4th graph and it can be modeled as y = aeᵇˣ.
Step-by-step explanation:
Which of the following shows 12 more than a number, written as an algebraic expression?
A: 12 − n
B: 12 + n
C: n − 12
D: 12n
Answer:
the answer is
Step-by-step explanation:
So 12 more than N would be 12 + N.
Answer:
b) 12 + n
Step-by-step explanation:
The statement is,
→ 12 more than a number.
Now equation will be,
→ 12 + n
≈ (or) n + 12
So, option (b) is correct.
On a test that has a normal distribution, a score of 45 falls two standard deviations above the mean, and a score of 30 falls three standard deviations below the mean. Determine the mean of this test.
The value of the mean is a 33.75 in the normal distribution.
According to the statement
We have to find that the students' favorite color was red.
So, For this purpose, we know that the
A mean is simply defined as the average of the given set of numbers.
From the given information:
On a test that has a normal distribution, a score of 45 falls two standard deviations above the mean, and a score of 30 falls three standard deviations below the mean.
Then
The interval for score = 45- 30= 15
If we divide it by the 4 standard deviations; the interval result into
= 15/4
= 3.75
Then, the standard deviation is 3.75, and
The mean = 30+ 3.75
The mean = 33.75
So, The value of the mean is a 33.75 in the normal distribution.
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A bag contains 8items of which two are deffective.A man selects 3 items
When a man selects 3 items, the probability that they're all defective will be 1/64.
How to calculate the probability?Probability is the occurence of likely events. It is the area of mathematics that deals with numerical estimates of the likelihood that an event will occur or that a statement is true. An event's probability is a number between 0 and 1.
From the information, bag contains 8items of which two are deffective. The probability of a defective item is:
= 2/8
= 1/4
When a man selects 3 items, the probability that they're all defective will be:
= (1/4)³
= 1 / 64
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Complete question
A bag contains 8items of which two are deffective. A man selects 3 items, what is the probability that they're all defective?
Find the perimeter of the triangle below.
31 cm
36.8 cm
9.73 cm
Answer:
77.53
Step-by-step explanation:
You just have to sum them up
Answer:
i think the answer is 77.53
Step-by-step explanation:
En un triatlón, Jenny nadó durante 1 hora, anduvo en bicicleta durante 1,75 horas y corrió durante 1 hora. Su velocidad promedio en bicicleta fue 2 veces su velocidad promedio para correr, y su velocidad promedio para correr fue 8 veces su velocidad promedio para nadar. La distancia total del triatlón fue de 55,5 kilómetros. Escribe una ecuación y resuélvela para encontrar la velocidad de nado promedio de Jenny en kilómetros por hora. Explique su ruta de solución y el razonamiento detrás de su trabajo.
Jenny's Average swimming speed is 1.5 km/h.
Jenny's average swimming speed as S (in km/h). We can then use the given information to set up equations and solve for S.
We know that Jenny swam for 1 hour, so the distance she swam is given by the formula: Distance = Speed * Time.
Thus, the distance she swam is S * 1 = S km.
Next, we know that her average running speed is 8 times her average swimming speed. Therefore, her average running speed is 8S km/h.
Since she ran for 1 hour, the distance she ran is 8S * 1 = 8S km.
Furthermore, we are given that her average bicycling speed is 2 times her average running speed. Therefore, her average bicycling speed is 2 * 8S = 16S km/h.
She biked for 1.75 hours, so the distance she biked is 16S * 1.75 = 28S km.
The total distance of the triathlon is the sum of the distances for each segment: Distance(swimming) + Distance(running) + Distance(biking) = 55.5 km.
Therefore, we can write the equation:
S + 8S + 28S = 55.5.
Simplifying the equation, we get:
37S = 55.5.
To solve for S, we divide both sides of the equation by 37:
S = 55.5 / 37 = 1.5.
Thus, Jenny's average swimming speed is 1.5 km/h.
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Question 3: 12 pts A box has 26 pens —6 red, 8 green, 5 blue, and 7 black. Sam picks two pens at a time without replacement. What is the probability that Sam picks two blue pens?
A box has 26 pens —6 red, 8 green, 5 blue, and 7 black. Sam picks two pens at a time without replacement. What is the probability that Sam picks two blue pens?
Answer:
The probability of Sam is 2/5
Step-by-step explanation:
n(e)=2
n(s)=5
Pe=n(e)/n(s)
Pe=2=5
Can someone please help me :(
Answer:
1
Step-by-step explanation:
2x + 1 = -3x + 6
add 3x
5x + 1 = 6
subtract 1
5x=5
Divide by 5
x=1
If this is correct, please mark brainliest!
Answer:
x=7
Step-by-step explanation:
2x + 1 = 15
-3x+6 = - 15
Since they are equal the equation is true
In the given figure, find the measure of angle BOC, angle COD and angle DOE ?
Answer:
Step-by-step explanation:
\(2x - 10^o + 2x + 30^o + x + 10^o + 50^o = 180^o \\\ 5x + 80^o = 180^o \\\ 5x = 180^o - 80^o \\\ 5x = 100^o \\\ x = \frac{100^o}{5} \\\\ x = 20°\)
I hope I've helped you.
Explanation:-
From the given figure :
∠AOB = 50°
∠BOC = x+10°
∠COD = 2x+30°
∠DOE = 2x-10°
We know that
The sum of the angles lie on the same line = 180°
⇛ ∠AOB + ∠BOC + ∠COD + ∠DOE = 180°
⇛ 50°+x+10°+2x+30°+2x-10° = 180°
⇛ 5x+80° = 180°
⇛ 5x = 180°-80°
⇛ 5x = 100°
⇛ x = 100°/5
⇛ x = 20°
∴ x = 20°
Now,
The measure of ∠BOC = x+10°
= 20°+10°
= 30°
The measure of ∠COD = 2x+30°
= 2(20°)+30°
= 40°+30°
= 70°
The measure of ∠DOE = 2x-10°
=2(20°)-10°
= 40°-10°
= 30°
Answer:-
The measure of ∠BOC = 30°
The measure of ∠COD = 70°
The measure of ∠DOE = 30°
Remember:-The sum of the angles lie on the same line is 180°
The number 16 is increased to 17. What is the percentage by which the number was
increased, to the nearest tenth of a percent?
The percentage is 6.25%
Calculate the percentage increase
The ability to calculate percentage increases is a crucial one for geographers to possess. The outcomes may improve when geographers gather data over time. A geographer can determine the degree of change in their data by computing a percentage increase. For instance, learning how much a river channel widens as you move downstream may be helpful.
calculate the difference between the two figures being compared.
Divide the increase by the starting amount, then multiply the result by 100. % Increase equals an increase of 100 initial numbers.
Based on the given conditions, formulate: (17-16)/16
Calculate the sum or difference: 1/16
Rewrite a fraction as a decimal:0.0625
Multiply a number by both the numerator and the denominator: 0.0625×100÷100
Calculate the product or quotient: 6.25÷100
Rewrite a fraction with a denominator equal to 100 to a percentage:6.25%
Solution:6.25%
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(9·20+60)÷4−16+4·(20·5)
Answer:
444
Step-by-step explanation:
Parentheses
Exponents
Multiplication
or
Division
Addition
or
Subtraction
(9·20+60)÷4−16+4·(20·5) -multiply the first numbers in the first ()
(180+60)÷4−16+4·100 - multiply the numbers in the last ()
240÷4-16+4·100 -add the numbers in the ()
240÷4-16+400 -multiply the last numbers
60-16+400 -divide the firsts numbers
444 -SOLVED
\(\text {Hello! Let's Solve this Problem!}\)
\(\text {The First Step is to Solve the Parentheses:}\)
\(\text {90*20=180+60=240}\\\text {20*5=100}\)
\(\text {Your new Problem should be: 240/4-16+4+100}\)
\(\text {The Next Step is to Divide:}\)
\(\text {240/4=60}\)
\(\text {Your new Problem should be: 60-16+4*100}\)
\(\text {The Next Step is to Subtract:}\)
\(\text {60-16=44}\)
\(\text {Now the Next Step is to Multiply:}\)
\(\text {4*100=400}\)
\(\text {The Final Step is to Add:}\)
\(\text {44+100=}\)
\(\text {Your Answer should be:}\)
\(\fbox {444}\)
\(\text {Best of Luck!}\)
\(\text {-LimitedX}\)
Exit Ticket: At many county and state fairs, you must purchase
tickets if you wish to go on the rides. Different rides require
different numbers of tickets. The Ferris wheel, for example,
might require three tickets, while the bumper cars might require
two. Before you buy any tickets, it might be helpful to know
which rides you plan to ride, and how many tickets you will need.
Write about it! Each ride requires 3 tickets. If a ticket costs
$1.50, write an equation to find the total cost of y of x rides.
How much will it cost to ride 10 rides?
An equation to find the total cost of y of x rides is y = 3x.
The cost to ride 10 rides is equal to $15.
How to determine the total cost of y of x rides?In order to write an equation that model this situation, we would assign variables to the number of tickets and the total cost respectively, and then translate the word problem into algebraic equation as follows:
Let the variable x represent the number of tickets.Let the variable y represent the total cost.Next, we would translate the word problem into an algebraic equation based on the fact that each ride requires 3 tickets and a ticket costs $1.50 as follows;
y = 3x
For the cost of 10 rides, we have:
y = 10x
When x = 1.50, the total cost is given by:
y = 10(1.50)
y = $15.
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PLEASE HELP!!
Write an equation of a quadratic function with the given properties: f(3)=f(-5)=0; f(-6)=-36
The equation for a quadratic function with given properties is, f(x) = -201.5 (x² +2x - 15)
Given,
f(3) = f(-5) = 0;
f(-6) = -36
Here,
The x intercepts of the quadratic equation are;
x₁ = 3 , x₂ = -5
The quadratic equation in factored form is equal to
f(x) = a(x - x₁) (x - x₂)
Substitute x₁ = 3 , x₂ = -5 in f(x)
Then,
f(x) = a(x - 3) (x - -5)
f(x) = a(x - 3) (x + 5)
We have;
f(-6) = -36
That is, if x = -6 then f(x) = -36
So,
f(x) = a(x - 3) (x + 5)
-6 = a(-36 - 3) (-36 + 5)
-6 = a x - 39 x - 31
-6 = 1029a
a = -1029/6
a = -201.5
Here,
f(x) = -201.5(x - 3) (x + 5)
Apply distributive property;
f(x) = -201.5(x² +5x - 3x - 15)
f(x) = -201.5 (x² +2x - 15)
That is,
The equation for a quadratic function with given properties is, f(x) = -201.5 (x² +2x - 15)
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