Answer:
0.52
Step-by-step explanation:
25-12=13
boys are equal to 13
the probability of picking a boy at random will be;
13/25=0.52
You need to get your car fixed. You bring it to Mr. Bagnuolo’s Autobody Shop. He charges $60 per hour for the labor and then you must pay $100 for the part. When you pick up the car the next day, you are charged $340. How many hours did it take Mr. Bagnuolo to fix your car?
Answer:
4 hours
Step-by-step explanation:
We know
Mr. Bagnulo charges $60 per hour for the labor, and you must pay $100 for the part. Let C represent the cost and x represent the number of hours; we have the equation
C = 60x + 100
Now put 340 in for C and solve
340 = 60x + 100
240 = 60x
x = 4 hours
So, Mr. Bagnuoto take 4 hours to fix your car,
Jim is trying to solve the system of equations. He begins by multiplying equation (1) by d and equation (2) by a. Before he can continue, his friend angela comes by and says, "no, you should have multiplied equation (1) by e and equation (2) by b. You're going to get the wrong answer. " is angela right? why or why not?.
It depends on the values of a,b,d and e in the equations , different values may lead to different answers.
What is linear equation ?
A linear equation is an equation in which the highest power of the variable is 1. Linear equations can be written in the form of y = mx + b, where m is the slope of the equation, x is the variable, and b is the y-intercept, the point where the line crosses the y-axis. These equations are called linear because they describe a straight line when graphed.
It depends on the specific equations and the values of a, b, d and e in the system of equations. Multiplying both sides of an equation by a non-zero constant does not change the solution set of the equation.
However, if Jim wants to use the method of elimination, which is multiplying one equation by a constant and adding or subtracting it from the other equation, then it is important to ensure that the coefficients of one variable in the two equations are opposite in sign after the multiplication. This will enable him to eliminate one variable and find the value of the other variable.
It depends on the values of a,b,d and e in the equations , different values may lead to different answers.
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50 points
Laisha rides a bike 8 miles in 40 minutes. Jefford rides a bike 5 miles in 30 minutes.
Who will bike the farthest in 1 hour?
2nd question- how much farther?
Step by step explain
We know that 1 hour = 60 minutes.
Set equal proportions for both Laisha and Jefford to find the distance x and y they bike in 60 minutes:
Laisha 8/40 = x/60 ⇒ 1/5 = x/60 ⇒ x = 60/5 = 12 milesJefford 5/30 = y/60 ⇒ 1/6 = y/60 ⇒ y = 60/6 = 10 milesLaisha will bike farther by:
12 - 10 = 2 milespls help 100 points to who ever gets it write
Answer:
13.5 blocks
12 blocks
Step-by-step explanation:
Each division on the number line represents half a block.
From inspection of the number line:
John's house is 9.5 blocks west from the park.Liam's house is 4 blocks east from the park.Therefore, the distance between John's house and Liam's house is:
9.5 + 4 = 13.5 blocksFrom inspection of the number line:
Katie's house is 3.5 blocks west from the park.Trina's house is 8.5 blocks east from the park.Therefore, the distance between Katie's house and Trina's house is:
3.5 + 8.5 = 12 blocksCarly earns a weekly salary of $720 plus 4% commission. Last week, she sold $3250 worth of products. What was her gross pay?.
Her gross pay is $850.
Commission, also known as sales commission, is a payment given to employees based on the sales they make. Create invoices for free with SumUp Invoices. Commission is often calculated as a percentage of the value of a sale.
Gross salary is the amount received by an employee without any tax deductions. Net salary is the amount that an individual receives after all deductions have been taken out.
Salary of Carly = $720
Commission of Carly = 4%
Amount of products sold by Carly = $3250
Commission of Carly on the goods sold = 4% of $3250 = $130
Hence gross pay of Carly = $720 + $130 = $850
Carly hence gets $850 at the end of the week.
Her gross pay is her salary plus her commission.
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How do you write a quadratic function in vertex form given the vertex and a point?.
Using the formula x=-b/2a, find the quadratic's vertex, and then substitute the result for y in the original equation.
Three points produce a quadratic function of the formula f(x) = ax^2 + bx + c. A quadratic function can be determined by finding a, b, and c algebraically given three locations on the graph. Because two points do not define a particular parabola, it is not possible.
There are an unlimited number of parabolas that pass through two points if you are only given two points and no additional information. After that, enter the vertex as a variable in the vertex form equation, y=a(x-h)^2+k. (A remains the same, h equals x, and K equals y.)Learn more about quadratic equation Visit: brainly.com/question/1214333
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Micaela and Jackson own competing taxicab companies. Both cab companies charge a one-time pickup fee for every ride, as well as a charge for each mile traveled. Micaela charges a $3.50 pickup fee and $1.30 per mile. The table below represents what Jackson's company charges.
Jackson's company $1.2 more than Micaela's.
What is an expression?Mathematical expression is defined as the collection of the numbers variables and functions by using operations like addition, subtraction, multiplication, and division.
We have to given that;
Micaela charges a $3.50 pickup fee and $1.30 per mile.
And, The table represents what Jackson's company charges.
Now, Micaela charges a $3.50 pickup fee and $1.30 per mile.
Hence, The equation that represents Mathew's charges is given as,
⇒ y = 1.30x + 3.50 .. (i)
And, From table,
The equation that represents Jackson's charges is given as:
Take two points (x, y) = (10, 30.50) and (30, 88.50)
Hence, The equation is,
⇒ y - 88.50 = (88.50 - 30.50)/(30 - 10) (x - 10)
⇒ y - 88.50 = 50/20 (x - 10)
⇒ y - 88.50 = 2.5 (x - 10)
⇒ y - 88.50 = 2.5x - 25
⇒ y = 2.5x + 88.50 - 25
⇒ y = 2.5x + 63.50 .. (ii)
We know that;
A linear equation is represented as:
⇒ y = mx + b
Where: m represents the slope/rate.
Hence, Jackson's company $1.2 more than Micaela's.
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Brianna etimated that he would pend $60 hopping for chool upplie before the tart of the chool year. She actually pent $55. What i the percent error for her etimate?
The percentage error is 8.3%. ((60 - 55) / 60) x 100 = 8.3%.
(60 - 55) / 60 = 0.083
0.083 x 100 = 8.3
Brianna estimated that he would spend $60 hopping for school supplies before the start of the school year. However, she actually spent $55. To calculate the percent error for her estimate, we first subtract the actual amount spent ($55) from the estimated amount ($60). This gives us 0.083, which is then multiplied by 100 to get 8.3%. This means that Brianna's estimate was 8.3% off from the actual amount spent. This result can help her understand how close her estimate was to the actual amount spent and can help her improve her estimating skills in the future.
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An electrician has 50 feet of copper wire. On his first job of the day he used 13.5 feet of wire, then he cut the rest of the wire into 4-foot pieces. A. Write an equation that represents the situation in terms of x, the number of 4-foot-long wire pieces. B. How many whole 4-foot pieces of wire does the electrician have? Show your work and explain your reasoning.
The equation that represents the situation in terms of x is 4x = 50 -13.5,
and there will be 9 whole pieces of wire of 4 feet.
What is an expression?Mathematical expressions consist of at least two numbers or variables, at least one arithmetic operation, and a statement. It's possible to multiply, divide, add, or subtract with this mathematical operation. An expression's structure is as follows:
Expression: (Math Operator, Number/Variable, Math Operator)
Given the total length of wire = 50 feet
length used = 13.5 feet
length of wire left = 50 - 13.5
A. wire is cut into 4 feet pieces
let there are x pieces,
expression for the pieces is
4x = 50 -13.5
B. 4x = 50 - 13.5
4x = 36.5
x = 36.5/4
x = 9.125
the whole number is 9
so there will be 9 pieces in a whole.
Hence the expression is 4x = 50 - 13.5,
and there will be 9 pieces of wire.
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I need help I’ll give BRAINLIEST
In this situation, it is true that the population who go to the movie theater, and the sample is the first 150 people of the theater.
What is the difference between the population and the sample?In statistics and related fields, the population can be considered as the whole or the complete group that is being studied. On the other hand, the sample is a fraction taken from the whole population.
The purpose of a sample is to make the process of studying the population easier as studying every individual of the population is too complicated.
Based on this, the population are all customers going to the theater but the sample are the 150 people.
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Is 35 and 36 a co-prime number?.
Yes, 35 and 36 are co-prime numbers. The factors of 35 are 1,,5, and 7 while for 36 it is 1,3,4,6,9, and 12. They share only 1 as factor hence they are coprime
The only two numbers that have 1 in common are known as co-prime numbers. From 1 to 100, some of these Co-Prime Numbers include: There are numerous pairs of Co-Primes from 1 to 100 that adhere to the aforementioned characteristics. The following are a few of them: (1, 99), (14, 15), (28, 57), (29, 31), (23, 1), (59, 97), etc. Sets of numbers that are coprime with one another are referred to as coprime numbers. Each and every prime number is a co-prime: One and the number itself are the only two factors that each prime number has, so the only factor that two prime numbers will have in common is 1. Two prime numbers are, for instance, 11 and 17.
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In cience cla, Anita i learning to ue a method called water diplacement to find the volume of a olid. In today' experiment, he miread the marking on her graduated cylinder and found the volume of a olid to be 0. 46 cubic centimeter. Anita' lab partner corrected her by aying the actual volume of the olid wa 0. 50 cubic centimeter. What i the percent error for Anita' meaurement?
The percent error for Anita's measurement is 8%
To calculate the percent error, you need to find the difference between the measured value and the actual value, then divide that by the actual value and multiply by 100. The formula for percent error is:
% error = (|measured value - actual value| / actual value) x 100
In this case, the measured value is 0.46 cubic centimeter and the actual value is 0.50 cubic centimeter.
% error = (|0.46 - 0.50| / 0.50) x 100
% error = (0.04 / 0.50) x 100
% error = 0.08 x 100
% error = 8%.
Hence, Anita's measurement using the water displacement method has a percent error equivalent to 8%.
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a delivery truck is transporting boxes of two sizes large and small. the large boxes weigh 60 pounds each and the small boxed weigh 30 pounds each. There are 110 boxes in all. If the truck is carrying a total of 4800 pounds in boxes how many of each type of box is it carrying?
The number of small boxes it is carrying is 60 and the number of large boxes it is carrying is 50.
How many of each type of boxes is it carrying?The first step is to form a system of equations using the information in the question:
l + s = 110 equation 1
60l + 30l = 4800 equation 2
Where:
l = number of large boxes
s = number of small boxes
The elimination method would be used to solve these equations.
Multiply equation 1 by 60
60l + 60s = 6,600 equation 3
Subtract equation 2 from equation 3:
30s = 1800
Divide both sides of the equation by 30
s = 1800 / 30
s = 60
Substitute for s in equation 1
l + 60 = 110
l = 110 - 60
l = 50
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How to solve quadratic equation?.
The quadratic formula, factoring, using the square roots, and completing the square are the four methods for solving a quadratic equation.
How can a quadratic equation be solved?The quadratic formula x = [-b(b2 - 4ac)] / (2a) provides the solutions of the quadratic equation ax2 + bx + c = 0. Therefore, to use the quadratic formula to solve a quadratic equation, simply transform the equation into its standard form, ax2 + bx + c = 0, and then apply the quadratic formula.
What is the fundamental quadratic equation's formula?A quadratic equation is a second-order equation written as ax2 + bx + c = 0, where a is a real number and b and c are real number coefficients.
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A force of 115N causes a mass to accelerate at 0.657m/sec^2. What is the mass?
force = M × A
115 = M × 0.657
make M which is the mass the subject by dividing by 0.657 on both sides
115/0.657 = 0.657M/0.657
M = 115/0.657
M = 175.0380518
M = 175kg
The world is consuming approximately 87 million barrels of oil per day.
(a) At this rate of consumption, how long will the known world oil reserves of 1.653 × 10^12
barrels last?
(b) Uganda has recently discovered a large deposit of oil in the Lake Albert basin. It is
estimated that this deposit holds as many as 6 billion barrels of oil. In how much time
would this amount be consumed by worldwide demand?
Answer:
Step-by-step explanation:
(a) 1.653 x 10^12 / 87 * 10^6
= (1.653 / 87) x (10^12 / 10^6)
= 0.019 x 10^6
= 1.9 x 10^4
or 19,000 days.
(b) 6 billion / 87 million
= 6,000,000,000 / 87,000,000
= 6000/87
= 69 days.
How many solutions does a 3x4 matrix have?.
A 3x4 matrix is a matrix with 3 rows and 4 columns is a rectangular matrix. The number of solutions in a matrix depends on the context in which it is used.
When the matrix is used to represent a system of linear equations, the number of solutions to the system depends on the rank of the matrix, which is the number of linearly independent rows or columns.
A 3x4 matrix has no solutions because it is not a square matrix and does not have a well-defined inverse. A square matrix has the same number of rows and columns and can be inverted if and only if its determinant is nonzero. A non-square matrix, on the other hand, has no inverse and cannot be inverted.
It should be noted that in the case of the rectangular matrix, the solution depends on the context of the problem and by using other techniques, such as the linear least squares method.
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How do you solve a quadratic equation by factoring if it doesn't equal 0?.
Equation of the form are considered quadratic equations: ax² + bx + c = 0, where a, b and c are constants. The most straightforward method of solving a quadratic equation by factoring is to express the equation in its factored form, and then solve for the values of x that make it true.
To solve, start by setting the equation equal to zero. This will simplify the equation and make it easier to factor.
The equation has to be factored after that. To do this, you will need to identify the factors of c that add up to b. For example, if c = 15 and b = 6, the factors are 3 and 5, since 3 + 5 = 6.
Once you have identified the factors, you can rewrite the equation in its factored form. For example, if c = 15 and b = 6, the equation can be rewritten as (x+3)(x+5) = 0.
Finally, you can solve the equation by setting each factor equal to zero. For instance, if the equation is (x+3)(x+5) = 0, then x+3 = 0 and x+5 = 0. Solving each equation separately, you get x = -3 and x = -5. Therefore, the solutions to the equation are x = -3 and x = -5.
In conclusion, to solve a quadratic equation by factoring you will need to set the equation equal to zero, identify the factors of the constant c that add up to the coefficient b, and then rewrite the equation in its factored form. Finally, you can solve for the values of x that make the equation true by setting each factor equal to zero.
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I need help I’ll give BRAINLIEST
A bar graph would be the best graphical representation to display the data. The correct answer would be an option (D).
A random sample of 130 purchases from a particular pharmacy was taken. The type of item purchased was recorded, and a table of the data was created.
Item Purchased Health & Medicine Beauty Household Grocery
Number of Purchases 55 23 22 30
A bar graph would clearly and effectively show the number of purchases for each category of item (Health & Medicine, Beauty, Household, and Grocery) and allow for easy comparison between the categories.
Thus, a bar graph would be the best graphical representation to display the data.
Hence, the correct answer would be option (D).
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What are the 4 system of equations?.
The 4 systems of equations are Quadratic Equation, Linear Equation,
Exponential Equation and Rational Equation.
Linear Equations: Each term involved in the linear equation is either a constant, a single variable, or a product of a constant. The general form of this equation with two variables is shown by
Y = mx + c, m ≠ 0
Where m is the slope
C is the intercept of the y-axis
Quadratic Equations: The quadratic equation is a second-order equation in which any one of the variables contains a power of 2. The general form is
px² + qx + r = 0, p ≠ 0
Exponential Equations: This math equation contains the variables in place of exponents. By using the properties, an exponential equation can be solved.
[tex]a^{x}=a^{y}[/tex] ⇒x = y
Rational Equations: A rational math equation involves rational expressions.
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Can somebody help me
The linear equation for this scenario is y = 2x + 10 and $20 was charged for 5 ATM transactions
What is an equation?An equation consists of numbers and variables linked together by mathematical operations to form an expression.
A linear equation is in the form:
y = mx + b
Where m is the rate of change and b is the initial value
Let y represent the total cost for x monthly transactions.
$10 is charged monthly plus $2 per transaction, hence:
m = 2, b = 10
y = 2x + 10
For 5 ATM transactions:
y = 2(5) + 10 = $20
The linear equation for this scenario is y = 2x + 10
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Kevin put $8000 in the bank for 9 year at 7% interet. Bet Bank give imple interet and Primo Bank give compound interet. A. How much money would Kevin have if he ue Bet Bank?
b. How much money would Kevin have if he ue Primo Bank?
c. Which bank hould Kevin ue? Why?
A. Kevin will have $5040 if he use Bet Bank.
B. Kevin will have $14,707.7 if he use Primo Bank.
C. Kevin would use Primo Bank due to high amount generation.
The formula to be used for simple interest is -
SI = PRT/100, where SI is simple interest, P is principal, R is rate of interest and T is time.
The formula for compound interest is -
A = [tex] {P(1 + r)}^{n} [/tex], where n is times interest is calculated.
To answer first part -
SI = 8000 × 9 × 7/100
Performing multiplication
SI = 504,000/100
SI = $5040
Amount generated = 8000 + 5040
Performing addition
Amount generated = $1340
To answer second part -
A = 8000(1+ 7/100)⁹
Convert rate to decimal
A = 8000 (1+0.07)⁹
Performing addition
A = 8000 × 1.07⁹
Taking power
A = 8000 × 1.84
Performing multiplication
A = $14,707.7
The money generated in Primo Bank is more. Hence, Kevin must choose this bank.
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• Your mortgage payment is: $1345
• Your Annual insurance premium = $678 • Your Annual real estate taxes = $3456 What is your total monthly payment for this home?
Your monthly payment for this house will be $1689.5 if your mortgage payment is $1345, your annual insurance premium is $678, and your real estate taxes are $3456.
Describe the mortgage payments in brief?
Principal and interest payments make up your monthly mortgage payments. You must purchase private mortgage insurance if your down payment is less than 20%, which raises your monthly payment. Real estate or property taxes are also included in some payments. Early on in the mortgage, the borrower pays more interest, whereas the principle balance is favored in the latter stages. A greater down payment will directly increase your home's equity.
To find the total monthly payment for the home, we need to divide the annual costs by 12.
Total monthly payment = Mortgage payment + (Annual insurance premium / 12) + (Annual real estate taxes / 12)
= $1345 + ($678 / 12) + ($3456 / 12)
= $1345 + $56.5 + $288
= $1689.5
So the total monthly payment for the home is $1689.5
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Your monthly payment for this house will be $1689.5 if your mortgage payment is $1345, your annual insurance premium is $678, and your real estate taxes are $3456.
Describe the mortgage payments in brief.Principal and interest payments make up your monthly mortgage payments. You must purchase private mortgage insurance if your down payment is less than 20%, which raises your monthly payment. Real estate or property taxes are also included in some payments. Early on in the mortgage, the borrower pays more interest, whereas the principle balance is favored in the latter stages. A greater down payment will directly increase your home's equity.
To find the total monthly payment for the home, we need to divide the annual costs by 12.
Total monthly payment = Mortgage payment + (Annual insurance premium / 12) + (Annual real estate taxes / 12)
= $1345 + ($678 / 12) + ($3456 / 12)
= $1345 + $56.5 + $288
= $1689.5
So the total monthly payment for the home is $1689.5
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How do you find radical 3?.
Radical 3, also known as the cube root of 3, is a number that when multiplied by itself three times equals 3. It is denoted as ∛3. To find the value of radical 3, one way is to use a calculator with a cube root function.
Another way to find the value of radical 3 is to use a process called prime factorization. It involves breaking the number down into its prime factors and then taking the cube root of the result. In the case of ∛3, we have:
∛3 = ∛(3)
Since 3 is a prime number, we don't need to factor it further, and thus the cube root of 3 is just 3^(1/3) = 3^(1/3) = ∛3.
It's important to note that cube roots can be negative or positive and in this case, ∛3 is positive.
∛3 is an irrational number, which means that it cannot be expressed as a ratio of two integers, and its decimal representation is non-repeating and non-terminating. But it can be approximated to some decimal values.
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HELP!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
The side length UX which have the segment UW tangent to the circle is equal to 3.4.
Tangent to a circle theoremThe tangent to a circle theorem states that a line is tangent to a circle if and only if the line is perpendicular to the radius drawn to the point of tangency
Considering the triangle ∆UVX; we will observe that the side XV consists of the circle diameter which is perpendicular to the side UV tangent to the circle, this implies the ∆UVX is a right triangle and we can solve for the side length UX using the Pythagoras rule as follows;
UX² = 3² + 1.6²
UX² = 9 + 2.56
UX² = 11.56
UX = √11.56 {take square root of both sides}
UX = 3.4.
In conclusion, we have the length of side UX = 3.4 which have the segment UW tangent to the circle.
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Which of the following is true?
F(2) < g(2)
f(2) > g(2)
f(2) = g(2)
Answer: f(2) = g(2)
Step-by-step explanation:
Well, this is kind of a comparison so you can do this by putting "2" as x value for both functions.
If you do that for both functions:
[tex]f(x) = 4x^{5}\\f(2) = 128 = (2^{7}) \\----------\\g(x) = 8.4^{x} = 2^{2x + 3}\\g(2) = 128[/tex]
So, this shows that f(2) = g(2).
Please help!!! This is algebra 2
The function y whose graph is a horizontal shrink of f(x) = 5x + 8 by a factor of 1/5 is given as follows:
y = 25x + 8.
How to obtain the function that represents the horizontal shrink?The function for this problem is defined as follows:
f(x) = 5x + 8.
For the horizontal shrink by a factor of a, the function is defined as follows:
f(x/a).
The parameter a for this problem is given as follows:
a = 1/5.
Hence the shrunk function is defined as follows:
y = f(x/(1/5)) = f(5x) = 5(5x) + 8 = 25x + 8.
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What is the F-14 known for?.
The F-14 Tomcat was created as a long-range naval interceptor and air superiority fighter, allowing it to perform the roles of an escort attack aircraft when equipped with Sparrow missiles and a fleet air defense loitering interceptor when equipped with Phoenix missiles.
The F-14 was equipped with the capacity to shoot down ANY enemy aircraft, anywhere in the globe. No other Cold War aircraft could dispatch two nuggets on a "normal" mission from the CV and capture two Aces a few hours later. Incredible combat capabilities were made possible by the AIM-54 and the AWG-9.
During the war, the F-14 was credited with one air-to-air victory. On February 6, 1991, a VF-1 F-14A employing an AIM-9 Sidewinder brought down an Iraqi Mil Mi-8 helicopter. Budget cuts that came into effect in 1991, after the conclusion of both the Cold War and the Persian Gulf War, forced the early retirement of the Tomcat.
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PLEASE HELP ME T-T "If there were 50 mosquitos near a pond. The population doubles every month" how is that non-linear
The table for given phrase shows non-linearity.
The complete explanation is given below.
What is linear function?The graph of a linear function is a straight line. The following is the form of a linear function.
a + bx = y = f(x).
One independent variable and one dependent variable make up a linear function. x and y are the independent and dependent variables, respectively.
Given:
There were 50 mosquitos near a pond.
The population doubles every month.
For 4 next four months, the population of mosquitos,
Number of months (x) → Population (y)
1 → 50
2 → 100
3 → 200
4 → 400
If the table shows linear relationship,
then its first difference is constantly equal.
That means,
100 - 50 = 50
200 - 100 = 100
400 - 200 = 200
First difference is not equal.
Therefore, the table shows non-linearity.
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the perimeter of a major sector is 168cm.Given that the angle subtended by the minor arc at the centre of the circle is 72 degrees,calculate the area of the major sector
The area of the major sector is 2807. 1 cm²
How to calculate the area of the major sector?
The perimeter of a sector given by the formula:
P = θ/360 × 2πr
where r is the radius and θ is the angle subtended at the centre
Since the perimeter of a major sector is 168cm and the angle subtended by the minor arc is 72 degrees. We can say:
angle subtended by the major arc = 360 -72 = 288 degrees
P = θ/360 × 2πr
168 = 288/360 × 2πr
210 = 2πr
r = 210/2π
r = 33.42 cm
Thus, the radius of the major arc is 33.42 cm
The area of a sector given by the formula:
A = θ/360 × πr²
A = (288/360) × π × 33.42²
A = 2807. 1 cm²
Thus, the area of the major sector is 2807. 1 cm²
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