Write each equation in standard form. Identify A,B,and C. 2x=4y-1
Answers
Answer: 2x - 4y = -1
Step 1: Move the variable.
2x - 4y = 4y - 1 - 4y
Step 2: Remove the opposites.
2x - 4y = -1
Answer = 2x - 4y = -1
Hope this helps!
Answer:
2x - 4y = -1
Step-by-step explanation:
Ax + By + C
A = 2
B = -4
C = -1
Related Questions
6. Alex and Brian park their bikes side-by-side. Alex leaves to visit friends, and Brian leaves 30 minutes later,
headed for the same destination. Alex pedals 5 miles per hour slower than Brian. After 1 hour, Brian passes Alex. At
what speed are they each pedaling?
Answers
Answer:
See below.
Step-by-step explanation:
When Brian passes Alex they both have travelled the same distance.
Call this distance d.
Let the speed that Brian passes = x miles/hour.
Distance = speed * time so:
For Alex:
d = (x - 5) * 1.5 ( Alex cycles for 1 + 30 minutes = 1.5 hours)
For Brian:
d = x * 1
So substituting d = x in Alex's equation:
x = 1.5(x - 5)
x = 1.5x - 7.5
7.5 = 0.5x
7/5 / 0.5 = x
15 = x.
ANSWER:
Brian's speed is 15 miles/hour.
Alex's speed is 15 - 5 = 10 miles/hour.
Each triangle weighs 8 grams and each circle weighs 3 grams. Write an equation to represent the hanger, using "x" to represent the trapezoid.
Answers
16x + 12, This equation represents the total weight of the hanger in terms of the number of trapezoids.
Let's say that there are x trapezoids. Each triangle weighs 8 grams, and there are 2 triangles in each trapezoid, so each trapezoid weighs 16 grams.
Each circle weighs 3 grams, and there are 4 circles in each hanger, so the weight of the circles in a hanger is 12 grams.
Therefore, the total weight of the hanger can be represented by the equation:
Total weight of hanger = weight of trapezoids + weight of circles
= 16x + 12
This equation represents the total weight of the hanger in terms of the number of trapezoids.
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."Proportion of variance accounted for" is also referred to as all of the following EXCEPT
a) R^2
b) the correlation ratio
c) eta-squared
d) chi-squared
Answers
."Proportion of variance accounted for" is also referred to as all of the following EXCEPT chi-squared.
"Proportion of variance accounted for" is commonly referred to as R^2 (pronounced R-squared), the correlation ratio, or eta-squared. These terms are used in different statistical contexts to describe the amount of variability in one variable that can be explained or predicted by another variable. R^2 is widely used in regression analysis to assess the goodness of fit of a model. The correlation ratio, also known as eta-squared, is used in analysis of variance (ANOVA) to measure the proportion of variance in a dependent variable that can be attributed to the group differences. Both R^2 and eta-squared indicate the strength of the relationship between variables or the amount of variance explained.
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can someone help me with 6
Answers
Answer: I thin’ the answer is B
Step-by-step explanation:
Somebody help Janele! XD
quartz gym....interesting, janele
Answers
Answer:
D
Step-by-step explanation:
So when making these equations, there's always going to be an initial value and then a variable
In this case, x represents the unknown cost for each class that Janele took at the rock climbing gym. She took 6 classes, so that's represented by 6x
50 is the initial value. The initial value is a value that is constant, or stays the same. It doesn't change based on variables like how many classes she took.
The total cost of everything was 92 dollars
So then ur equation would be
6x + 50 = 92
Because both the initial cost of 50 dollars and the cost of the classes equal to 92
lol Janele and the quartz gym, some of these math problems really do be interesting. like jim and his 100 watermelons from costco
find the value of angle x
pls answer
Answers
Answer:
110
Step-by-step explanation:
lets assume y is the angle next to x which should complete to form a 360.
50 + 25 + 35 + y = 360
y = 250
x + y = 360
x + 250 = 360
x = 110
Answer:
110
Step-by-step explanation:
lets assume y is the angle next to x which should complete to from a 360.
50 + 25 + 35 + y = 360
y = 250
x + y = 360
x + 250 = 360
x = 110
Suppose the tax rate for residents is defined as follows. A person with an income of (i) $20,000 or less pays no tax; (ii) more than $20,000 but not more than $40,000 pays 15% of the income over $20,000; (iii) more than $40,000 but not more than $80,000 pays $3,000 plus 22% of the income over $40,000; (iv) more than $80,000 pays $11,800 plus 29% of the income over $80,000. Place these values in an appropriately organized table. (a) Draw a well-labeled graph showing income and taxes. (b) Create a cell where the user can enter his/her income and the taxes are calculated automatically and displayed in the adjacent cell. Test your result using an income of $75,000.
Answers
For an income of $75,000, the calculated taxes would be $10,700.
Let's create a table to display the tax rates based on income ranges:
Income Range Tax Rate
$0 - $20,000 0%
$20,001 - $40,000 15% of income over $20,000
$40,001 - $80,000 $3,000 + 22% of income over $40,000
$80,001 and above $11,800 + 29% of income over $80,000
Now let's create a graph to visualize the relationship between income and taxes.
To calculate the taxes for a given income, let's create a formula that considers the income ranges and tax rates. Here's a formula you can use.
IF income <= $20,000:
tax = 0
ELSE IF income <= $40,000:
tax = 15% * (income - $20,000)
ELSE IF income <= $80,000:
tax = $3,000 + 22% * (income - $40,000)
ELSE:
tax = $11,800 + 29% * (income - $80,000)
Now let's test the formula using an income of $75,000:
IF $75,000 <= $20,000:
tax = 0 (not applicable)
ELSE IF $75,000 <= $40,000:
tax = 15% * ($75,000 - $20,000) = 15% * $55,000 = $8,250
ELSE IF $75,000 <= $80,000:
tax = $3,000 + 22% * ($75,000 - $40,000) = $3,000 + 22% * $35,000 = $10,700
ELSE:
tax = $11,800 + 29% * ($75,000 - $80,000) = $11,800 + 29% * $0 = $11,800
Therefore, for an income of $75,000, the calculated taxes would be $10,700.
Please note that this calculation assumes the income falls within one of the specified income ranges. If the income exceeds $80,000, the tax calculation will always fall into the last category.
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suppose a is a natural number show that a^2 is dividsible by 4 or 1 more than an integer dividible by 4
Answers
Since we have covered both cases and shown that in each case, a^2 is divisible by 4 or is 1 more than an integer divisible by 4, we can conclude that for any natural number a, a^2 satisfies the given condition.
To prove that for any natural number a, a^2 is divisible by 4 or is 1 more than an integer divisible by 4, we can consider two cases:
Case 1: a is an even number
If a is an even number, then it can be expressed as a = 2k, where k is also a natural number. In this case, we have:
a^2 = (2k)^2 = 4k^2
Since 4k^2 is divisible by 4, the statement holds true.
Case 2: a is an odd number
If a is an odd number, then it can be expressed as a = 2k + 1, where k is a natural number. In this case, we have:
a^2 = (2k + 1)^2 = 4k^2 + 4k + 1 = 4k(k + 1) + 1
Here, we observe that 4k(k + 1) is divisible by 4, and adding 1 does not change its divisibility. Therefore, a^2 is 1 more than an integer divisible by 4.
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Plsss help What is the value of x in the equation 3/4 (1/4 x + 8) - (1/2 x + 2) = 3 /8 (4-x) - 1/4x?
Answers
Answer:
X=-8
Step-by-step explanation:
please help i really don't understand
Answers
Answer:
3.75
Step-by-step explanation:
That is the decimal
Answer:
it's D
Step-by-step explanation:
if you were to divide the numerator by the denominator you would get 0.26 and the 6 is repeating
Write each equation in standard form.
8. y = -2/5x + 6
Answers
Answer:
Step-by-step explanation:
5(y = -2/5x + 6)
5y = -2x + 30
2x + 5y = 30
Eight less than a number s is three more than four times a number t. Solve for s.
Answers
Answer:
S= 11+4t
Step-by-step explanation:
Answer:
S= 11+4t .
hope I'm write not sure
Step-by-step explanation:
The dimensions of this screen are 8 inches by 15 inches. What is the screen size? Round your answers to the nearest whole number. Remember, the screen size is the same as the hypotenuse of the triangle whose legs are the width and height of the screen
Answers
Answer:17
Step-by-step explanation:
I just did it and got it write 15/8=17
Answer:
B
Step-by-step explanation:
suppose f : rn → rm is a linear map. what is the derivative of f ?
Answers
If f: rn → rm is a linear map, then its derivative is simply the map itself. This is because a linear map is a function that preserves vector addition and scalar multiplication.
In other words, if we take two vectors in the domain and add them together, and then apply the linear map, it is the same as applying the linear map to each vector separately and then adding the results. Similarly, if we multiply a vector in the domain by a scalar and then apply the linear map, it is the same as multiplying the result of applying the linear map to the original vector by the same scalar.
Formally, we can express this idea using the concept of a Jacobian matrix. The Jacobian matrix of a function describes the rate at which the function changes near a particular point. For a linear map, the Jacobian matrix is simply the matrix that represents the map. This means that the derivative of f is the matrix A such that f(x) = Ax for all x in rn.
To see why this makes sense, consider the simplest case of a linear map from R1 to R1, given by f(x) = ax, where a is a constant. The derivative of this function is f'(x) = a, which is just the constant coefficient of the linear map. More generally, the derivative of a linear map f: rn → rm is the matrix A such that f(x) = Ax for all x in rn.
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PLEASE HELP, and dont forget to show work!
Answers
Explanation:
- Divide the equation by 6 (x^2-7=0)
- Add 7 (x^2=7)
- Square root x to find solutions (x=rad7)
- Dont forget the radical means that there are two solutions!
Rahal is adding the Epression below. -3+[(-7)+(-6)] First he rewrites the expression. [3+(-7)]+(6) Which number property did Rashal use to rewrite the expressio?
Answers
Note: The second expression must be \([(-3)+(-7)]+(-6)\) instead of \([3+(-7)]+(6)\)
Given:
The given expression is:
\(-3+[(-7)+(-6)]\)
Rahal rewrites the expression as:
\([(-3)+(-7)]+(-6)\)
To find:
The property that Rahal use to rewrite the expression.
Solution:
According to the associative property of addition, if a, b and c are three real numbers, then
\(a+(b+c)=(a+b)+c\)
We have,
\(-3+[(-7)+(-6)]\)
Using the associative property of addition, we get
\(-3+[(-7)+(-6)]=[(-3)+(-7)]+(-6)\)
Therefore, the required property is associative property of addition.
Parv has a $50 gift card he uses the gift card to buy a pack of games for 9. 99. He also wants to buy n movies. Each movie cost 3. 99. Which inequality describes how many movies part can buy?
Answers
The inequality that describes how many movies Parv can buy is: n ≤ 10.025
Let's denote the number of movies Parv wants to buy as n. We are given that each movie costs $3.99. To determine the inequality that describes how many movies Parv can buy, we need to consider the amount of money he has remaining after purchasing the pack of games.
Parv starts with a $50 gift card and spends $9.99 on a pack of games. The remaining amount on the gift card is $50 - $9.99 = $40.01.
Now, let's consider the cost of n movies. Each movie costs $3.99, so the total cost of n movies would be n * $3.99.
Since Parv wants to buy the movies using the remaining amount on his gift card, we can set up the inequality:
n * $3.99 ≤ $40.01
This inequality states that the total cost of n movies, represented by n * $3.99, must be less than or equal to the remaining amount on the gift card, which is $40.01.
Simplifying the inequality further, we have:
3.99n ≤ 40.01
Now, if we want to solve for n, we can divide both sides of the inequality by 3.99:
n ≤ 40.01 / 3.99
Calculating this value, we have:
n ≤ 10.02506265664
Therefore, the inequality that describes how many movies Parv can buy is:
n ≤ 10.025
This means that Parv can buy a maximum of 10 movies, as he cannot purchase a fractional part of a movie.
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A store sells bouquets of fruits for $10 a bouquet. The daily cost to produce x bouquets of fruits is defined by the
function f(x) = - x4 + 3x3 + 5x2 + 20x + 1.
What is the least number of bouquets that must be sold for the store to make a profit?
3
4
5
6
Answers
Answer:
5
Step-by-step explanation:
Edgunity
Answer:
5 C
Step-by-step explanation:
even though the zeros are .401 and 4.819 its a real world problem and would only make sense to round. Once u round you have 1 and 5, and since 5 is greater, it must be 5.
Two walls of a canyon form the walls of a steady flowing river. From a point on the shorter wall, the angle of elevation to the top of the opposing wall is 20° and the angle of depression to the bottom of the opposing wall is 320 feet. Using the appropriate right triangle solving strategies, solve for the following: (Do not round intermediate calculated values. Only the final answer should be rounded to one decimal place.)
Answers
Answer:
x is approximately 226.3 feet
y is approximately 308.6 feet
z is approximately 226.3 feet
Step-by-step explanation:
The given parameters of the walls are;
The angle of elevation from the top of the shorter wall to the top of the opposing wall, θ₁ = 20°
From the diagram, the angle of depression from the top of the shorter wall to the bottom of the opposing wall, θ₂ = 45°
The distance from the bottom of the shorter wall to the base of the opposing wall, l = 320 feet
x = The height of the shorter wall = l × sin(θ₂)
∴ x = 320 feet × sin(45°) = 320 feet × (√2)/2 = 160·√2 feet ≈ 226.3 feet
∴ x ≈ 226.3 feet
By observation, we have;
y = x + z × tan(θ₁)
Where;
z = l × cos(θ₂)
∴ y = 160·√2 + 320 × cos(45°) × tan(20°) ≈ 308.6
y ≈ 308.6 feet
z = l × cos(θ₂)
∴ z = 320 × cos(45°) = 160·√2 ≈ 226.3
z ≈ 226.3 feet.
canden buys 3.9 pounds of grapes that cost 1.80 per pound . Which expression can be used to find the total cost of the grapes
Answers
Answer:
3.9 x $1.80
Step-by-step explanation:
3.9 x $1.80
What are the first three common multiples of 3 and 9?
Answers
Answer:
9,18,27
Step-by-step explanation:
9 is a multiple of 3 so the first 3 multiples of 9 are the same as the first 3 multiples of 3 and 9.
Evaluate an expressions: 4a + 3b + c if a = 8, b=-2 and c = 4
For 25 points 7th grade math
Answers
Answer:
4 x 8= 32
3 x 2= 6
32 + 6 + 4= 42
Therefore your answer would be 42.
Step-by-step explanation:
Hope this is helpful :)
There are 15 kittens at the animal shelter, and i want to adopt 2 of them. How many different pairs of 2 are there?
Answers
Hope this helped hope you have a good day
A bag contains 5 red marbles, 6 white marbles, and 4 blue marbles. Without looking, draw out a single marble. Find P(red and blue).
Answers
Answer:
9/15 or 60 percent
Step-by-step explanation:
Explain how you would use the diagram to find
the number of yards of white fabric used when
64 yards of blue fabric is used.
Answers
Answer:
we need a diagram.
Step-by-step explanation:
Find a10 given the geometric sequence 3, 12, 48, 192, ...
Answers
Answer:
Step-by-step explanation:
first term = a = 3
common ratio = 2nd term ÷ first term
= 12 ÷ 3
r = 4
\(a_{n} = ar^{n-1}\\\\a_{10}=3*4^{9}\\\\\\ = 3 * 262144\\\\= 786432\)
Irina is watching a 3 hour movie on TV. The shaded part of the fraction model below represents the part of each hour that the movie is playing, and the unshaded part represents the time spent on commercials.
Answers
Answer:
3 * 5/6 = 15/6 hours
Step-by-step explanation:
From the figure attached :
The bar is divided into 6 equal parts ; with 5 of the sections being shaded and 1 left unshaded
The shaded represent the actual playing time
Unshaded portion = time spent in commercials
Using the model, the actual playing time of the movie excluding commercials :
(Shaded portion / total portion) * movie length
5 / 6 * 3 = (5*3) / 6 = 15/6
Complete this area model to divide. 9,516 ÷ 4
Answers
Answer:
2379
Step-by-step explanation:
I think that’s what you want
Please help me I never learned this tbh
Answers
Answer:
25^2 = 20^2 + x^2
x^2 = 225
x = 15
Mary Jane scored 85% on her last test. There were 60 questions on the test. How many questions did she get correct? Show your work
PLEASE HELP ME
Answers
Answer: Mary Jane got 51 questions correct.
Step-by-step explanation: x/60 and 85/100. Multiply 60 and 85. When you get your answer, divide it by 100. It should give you the answer.