Beatrice made 11 sales this week. The solution has been obtained using linear equations.
What is linear equation?
A linear equation is one that has the highest degree of 1 possible. This indicates that there are no variables in a linear equation with exponents greater than 1. Such an equation on the graph, forms a straight line.
Let the sales of Beatrice be 'x'.
Since, Marshall made 5 more sales than Beatrice, we get
Sales of Marshall= x+5
Thus, Earnings of Beatrice = $276 + $11x
Earnings of Marshall = $29 + $23(x+5)
We are given that Beatrice and Marshall have earned the same amount this week, therefore,
⇒$276 + $11x = $29 + $23(x+5)
⇒$276 + $11x = $29 + $23x + $115
⇒$12x = $132
⇒x = $132/$12
⇒x = 11
Hence, Beatrice made 11 sales this week.
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Some water is placed in a bottle inside a refrigerator. Suppose the water's temperature (in °C) after x minutes can be modeled with an exponential function. The
graph of this function is shown below.
Use the model to answer the parts to the right.
It is means the temperature of the water does not fall below [tex]$10^{\circ} \mathrm{C}$[/tex].
What is meant by exponential function?The exponential function, which develops exponentially, is a concept in mathematics. More exactly, it is the function, where e is the irrational Euler's constant, or about 2.71828.
where x is a variable and an is a fixed amount known as the function's base. The transcendental number e, or roughly 2.71828, is the most often encountered exponential-function base.
A function that has a positive constant increased to a variable exponent, other than 1, is referred to as an exponential function. A function is assessed by being solved at a certain input value. When the growth rate and initial value are known, an exponential model can be found.
(a) initial temperature: [tex]$30^{\circ} \mathrm{C}$[/tex] it is y-intercept of the graph.
(b) For the first 30 minutes, as time inverses, the temperature decreases.
(c) the horizontal asymptote: y = 10
It is means the temperature of the water does not fall below [tex]$10^{\circ} \mathrm{C}$[/tex].
The complete question is:
Some water is placed in a bottle inside a refrigerator. Suppose the water's temperature [tex]$\left(n^{\circ} \mathrm{C}\right)$[/tex] after minutes can be modeled with an exponential function. The graph of this function is shown below. Use the model to answer the parts to the right.
(a) What is the initial temperature [tex]$\times_6$[/tex] of the water? [tex]$\square^{\circ} C$[/tex] The initial temperature is represented by the (Choose one) of the graph.
(b) For the first so minutes, as time increases, the temperature (Choose one) Temperature
(c) Give the equation of the asymptote. [tex]$y-a l^{\circ} \mathrm{Cl}$[/tex]
Choose the statement that best describes the meaning of the asymptote.
The temperature of the water Time (minutes) does not fall below [tex]$10^{\circ} \mathrm{C}$[/tex].
The water cannot be in the bottle for more than so minutes.
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What is a 180 degree triangle called?.
Answer:
Step-by-step explanation:
all 3 angles on a triangle add up to 180 degrees, so all triangles are 180 degrees.
I don’t really understand how to do this! Please someone helppp! The question is : What is the slope of the line?
Can someone please explain how to solve it??
Answer:
this is answer ️️️️️️
A contruction manager need 12 worker to complete a building project in 54 day. If the building project need to be completed in 36 day how many more worker doe the contruction manager need to complete the project
To complete the project in 36 days, the construction manager would need to add at least 8 more workers to his current team of 12 workers.
If 12 workers can complete a building project in 54 days, to determine this we can divide the rate of work by the number of workers by the number of days: 12 workers / 54 days = 0.2222 workers/day.
If the construction manager wants to complete the project in 36 days, he needs to increase the rate of work to complete the project in that shorter timeframe. To do this, he can add more workers or increase the productivity of the current workers.
To determine how many more workers the manager needs, we can use the formula:
(number of workers) = (rate of work) x (number of days)
By plugging in the desired rate of work and number of days, we get:
(number of workers) = (0.2222 workers/day) x (36 days) = 7.999 workers
To complete the project in 36 days, the construction manager would need to add at least 8 more workers to his current team of 12 workers.
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How to find the missing sides of a special right triangle 45 45 90?.
Using the pythagorean theorem: The length of the sides of a 45-45-90 triangle can be easily solved using the pythagorean theorem because it is a right angle triangle.
Recall the formula for the Pythagorean theorem: a 2 + b 2 = c 2; a 2 + b 2 = c2.
In the Pythagorean theorem, WHAT IS A?To determine the value of (mostly) the hypotenuse in a right triangle, the Pythagorean theorem uses the formula a2+b2=c2. The "non-hypotenuse" sides of the triangle (opposite and adjacent) are a and b.
In layman's terms, what exactly is the Pythagorean theorem?The well-known geometric theorem known as the Pythagorean theorem states that the square on the hypotenuse (the side opposite the right angle) is equal to the sum of the squares on the legs of a right triangle. This is known as a2 + b2 = c2.
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PLEASE HELP WITH EQUATION
Answer:
y = -5/2x + 31
Step-by-step explanation:
The slope of the line parallel to the given line has the same slope, m = -5/2
Use the point-slope form: y - y1 = m(x - x1) and the given point (10,6)
y - 6 = -5/2(x - 10)
y - 6 = -5/2(x + 50/2)
y - 6 = -5/2x + 25
y = -5/2x + 31
Cube root of 6 times the cube root of 16
Answer:
[tex] 2\sqrt[3]{12} [/tex]
Or in decimal notation 4.6
Step-by-step explanation:
[tex] \sqrt[3]{6} \times \sqrt[3]{16} \\ = \sqrt[3]{6} \times 2 \sqrt[3]{2} \\ = \sqrt[3]{6 \times 2} \times 2 \\ = \sqrt[3]{12} \times 2 \\ = 2 \sqrt[3]{12} \\ = 4.57885...[/tex]
What can you observe in the graph of a logarithmic function?.
The logarithmic function is inverse of expontial function that why graph of logarithmic function is draw according to features of expontial function.
The logarithmic function [tex] f(x) = log_{b}(x) [/tex] is the inverse of the exponential function y=bˣ. Clearly, the logarithm function must have domains and limits of (0, ∞) and (−∞,∞). The logarithmic function can be graphed by examining the graph of the exponential function and swapping x and y. Graphs of exponential functions f (x) = bˣ or y = bˣ include the following features:
The domain of exponential is real (-∞,∞). The range is also a positive real number (0, ∞).The graph of an exponential function usually passes through the point (0, 1). This means that the y-intersection is at pt. (0, 1).The graph of the exponential function f(x) =bˣ has a horizontal asymptote at y = 0.Exponential graphs decrease from left to right when 0 < b < 1, in which case they are called exponential decays.If the basis of a function f(x) = bˣ , b> 1, its graph grows from left to right and is called exponential growth.For example, the graph above represents a logarithmic function, [tex] f(x) = log_{2}(x) [/tex].
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How do you solve y =- 2x 6?.
We can find the solution of y = -2x + 6 by graphing the equation by plotting the intercepts of the equation.
Here we can solve the equation by calculating the x and y intercepts of the equation.
This is done by equating the other coordinate to 0 to get the intercept.
For the x-intercept, we will take y to be 0 to get
-2x + 6 = 0
or, 2x = 6
or, x = 3
Hence one intercept will be (3 , 0)
For the y-intercept, we will let x be 0 to get
y = 6
Hence getting the other intercept to be (0 , 6)
Now we can plot the graph by simply plotting these points and drawing a straight line passing through it
To get any unique solution, another equation needs to be plotted and the intersection point of the 2 lines will give us the required answer.
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Complete Question
How do you solve y = -2x + 6?
[tex] \sqrt{200} \times \sqrt{2} [/tex]
help me please
Work Shown:
[tex]\sqrt{200} \times \sqrt{2}\\\\\sqrt{200 \times 2}\\\\\sqrt{400}\\\\\sqrt{20^2}\\\\20\\\\\text{Therefore, }\sqrt{200} \times \sqrt{2}=20\\\\[/tex]
The rules I used were:
[tex]\sqrt{A}*\sqrt{B} = \sqrt{AB}\\\\\sqrt{A^2} = A \ \ \text{ where } A \ge 0\\\\[/tex]
The length, width and height of a rectangular prism are in the ratio 3:2:1, respectively. What is the length of the prism if it has a volume of 48 cm3?.
The rectangular prism's dimensions are 3:2:1 in terms of length, breadth, and height. The prism's length can be computed as 24 cm using its volume, 48 cm3, as input.
Volume = Length × Width × Height
48 cm3 = L × 2 × 1
L = 24 cm
A rectangular prism is a solid 3D object that has six faces, eight vertices and twelve edges. The length, width and height of a rectangular prism can be expressed in a ratio of 3:2:1 respectively. Knowing this ratio and the volume of the prism, which is 48 cm3, it is possible to calculate the length of the prism. To calculate the length of the prism, first the volume of the prism must be expressed in terms of the length. This can be done by using the formula Volume = Length × Width × Height. Therefore, 48 cm3 = L × 2 × 1. Solving this equation for L gives the length of the prism as 24 cm. Therefore, the length of the rectangular prism with a volume of 48 cm3 and a ratio of 3:2:1 is 24 cm.
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What is a 60 60 60 degree triangle?.
Answer:
Step-by-step explanation:
Equiangular triangle
What is the solution of 3x 4y 12?.
(0,3) , (4,0) are two solution of equation 3x + 4y = 12.
An equation is a mathematical statement that asserts the equality of two expressions. It typically consists of two parts, separated by an equal sign (=), with the expressions on either side representing the same value.
Given Linear equation in two variables:
3x + 4y = 12 ----( 1 )
Substitute x = 0 , in equation ( 1 ) ,
3 × 0 + 4y = 12
=> 4y = 12
=> y = 12/4
y = 3
Therefore ,
( x , y ) = ( 0 , 3 )
Substitute y = 0 in equation ( 1 ) ,
3x + 4 × 0 = 12
=> 3x = 12
=> x = 12/3
x = 4
Therefore,
( x , y ) = ( 4 , 0 )
Required two solutions are ( 0 , 3 ) , ( 4 , 0 )
Therefore, (0,3) , (4,0) are two solution of equation 3x + 4y = 12.
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In a factorial design study, which effect is usually considered the most important effect?
a. The main effect of the first independent variable
b. The interaction
c. The main effect of the second independent variable
d. The overall effect
In a factorial design study, (B) the interaction effect is often viewed as the most important influence.
What is the factorial design study?In statistics, a full factorial experiment is one in which all potential combinations of the levels across all of the factors are taken into account by the experimental units.
A full factorial experiment has two or more factors with discrete possible values or "levels" in its design.
A fully crossed design is another name for a full factorial design.
The interaction effect in a factorial design study is typically regarded as the most significant effect.
Using such an experiment, the researcher can examine how each element affects the response variable as well as how different factors interact with one another.
Therefore, in a factorial design study, (B) the interaction effect is often viewed as the most important influence.
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How to solve the system by substitution?
Answer:
Solving a system of equations by substitution involves isolating a variable in one equation, then substituting that expression into the other equation. This allows you to solve for the remaining variable in one equation and then substitute it back into the first equation to find the solution for the other variable.
Here is the general process for solving a system of equations by substitution:
Isolate a variable in one of the equations. This is typically done by adding or subtracting one of the variables from both sides of the equation.
Substitute the isolated expression into the other equation by replacing the corresponding variable with the expression you found in step 1.
Solve the new equation for the remaining variable.
Substitute the value you found for the remaining variable back into the first equation and solve for the other variable.
Check your solution by substituting the values you found for the variables back into both equations to make sure they are true statements.
Write your solution in the form of an ordered pair (x, y)
An example of solving a system of equation by substitution :
2x + 3y = 8
4x - 3y = 2
Isolate a variable in one of the equations, for example:
3y = 8 - 2x
Substitute this expression into the other equation:
4x - 3(8 - 2x) = 2
Solve the new equation for the remaining variable:
4x - 24 + 6x = 2
10x = 26
x = 2.6
Substitute the value you found for x back into the first equation and solve for y:
2(2.6) + 3y = 8
5.2 + 3y = 8
3y = 2.8
y = 0.93
Check your solution by substituting the values you found for the variables back into both
How do you write an algebraic expression for equivalent expressions?.
To write algebraic expression for an equivalent expressions, we need to be sure that each side of the equal sign amounts to the same number. An example of an equivalent equation would be:
4x + 2 = 2(2x + 1)
An algebraic expression is a sequence of numbers, variables, mathematical operations, and sometimes exponents. For example, 4x + 3 is a basic algebraic expression. Also see there is no equal sign in the algebraic expression. If so, it can be an equation or set of numbers containing one or more variables.
Equivalent Expressions: Equivalent expressions are expressions that look different but have the same value. Writing the equivalent formula makes it easier to work with and solve. Two Ways to Write the Equivalent Expressions :
1) Write expression using the distributed property:
Find the greatest common factor (GCF) of the distribution.Put the GCF outside the brackets and the other terms inside like, ab( c+ d).2) Write equivalent expressions by combining same terms. Same terms are terms that have the same variables raised to the same powers. For example, the list shows several pairs of similar terms, 4t and 5t ; 9k³and 2k³ ; 1.4xy and 6.7xy.
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What is partial sum limit?.
A partial sum limit is the sum of the series.
A function may get close to two distinct limits. There are two scenarios: one in which the variable approaches its limit by values larger than the limit, and the other by values smaller than the limit.
A partial sum is the total of a limited number of the series' terms. To see how the infinite sum behaves, we can examine a collection of these sums. The index of the final term in the sum is used to denote each of these partial sums.
When a group of numbers, known as addends or summands, are added together in mathematics, the outcome is their sum or total.
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The points O, P, Q and R all lie on the same line segment, in that order, such that the ratio of OP : PQ : QR is equal to 1 : 1 : 3. If OR = 10, find OQ.
Answer:
OQ = 4
Step-by-step explanation:
the ratios of the segments OP : PQ : QR = 1 : 1 : 3 = x : x : 3x ( x is a multiplier)
then
OP + PQ + QR = OR , that is
x + x + 3x = 10
5x = 10 ( divide both sides by 5 )
x = 2
Then
OQ = OP + PQ
= x + x
= 2x
= 2 × 2
= 4
I DEF~GHF, find the value of x and y
Answer:
x = 8y = 35Step-by-step explanation:
Given similar triangles DEF and GHF, and side lengths DE = 6, EF = 10, GH = 21, FG = 28, you want the lengths of y=FH and x=FD.
ProportionCorresponding sides of similar triangles are proportional. This means ...
DE/GH = EF/HF = FD/FG
6/21 = 10/y = x/28
We can multiply by 28 to solve for x:
x = 28(6/21) = 8
Multiplying by 21y/6 will give the value of y:
y = (21/6)(10) = 35
The values of x and y are 8 and 35, respectively.
__
Additional comment
These are both 3-4-5 right triangles. The smaller is multiplied by 2; the larger is multiplied by 7 to give 6-8-10 and 21-28-35 triangles.
I need help with this solving system by elimination
Answer:
(- 6, 0 )
Step-by-step explanation:
x - 4y = - 6 → (1)
2x - 12y = - 12 → (2)
multiplying (1) by - 2 and adding to (2) will eliminate x
- 2x + 8y = 12 → (3)
add (2) and (3) term by term to eliminate x
(2x - 2x) + (- 12y + 8y) = - 12 + 12
0 - 4y = 0
- 4y = 0 , then
y = 0
substitute y = 0 into either of the 2 equations and solve for x
substituting into (1)
x - 4(0) = - 6
x - 0 = - 6
x = - 6
solution is (- 6, 0 )
Answer:
x = -6
y = 0
Step-by-step explanation:
For the first equation, x - 4y = -6, we can move -4y to isolate x. Then, the equation will be: x = -6 + 4y. Now, we can use that x to solve for the second equation, 2x - 12y = -12. Let's plug in x from the first equation down to the second one:
2(-6 + 4y) - 12y = -12
Let's solve:
-12 + 8y - 12y = -12
-4y = 0
y = 0
Now that we have y, we can solve for x. Let's plug in y = 0 for the first problem: x-4(0) = -6
x = -6
Help please it’s asking me to solve a side
Answer:
5) x = 5
6) x ≈ 51.47
Step-by-step explanation:
It looks like you're being asked to solve for x the equations ...
sin(30°) = x/10cos(39°) = 40/xSolutionThese are solved in the way any such equation is solved, though you need a calculator to find the values of the trig functions.
5) sinMultiply by the denominator:
x = 10·sin(30°) = 5
6) cosMultiply by x, then divide by cos(39°):
x = 40/cos(39°) ≈ 51.47
Alexis bought X boxes of cereal for $3 each and paid with a $20 bill. Which expression represents the total amount of change she should receive?
The expression that represents the total amount of change she should receive is y = 20 - 3x.
What is linear expression?An algebraic expression that uses either a constant or a variable raised to the first power for each term is known as a linear expression. This means that none of the exponents can be greater than 1.
The price of x boxes of cereal $3 each = 3x
Let y be the extra cash she paid
Total cash she paid = $20
Then we have
3x + y = 20
And for expression that represents the total amount of change she should receive
y = 20 - 3x
Thus, The expression that represents the total amount of change she should receive is y = 20 - 3x.
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The expression 6x + 6 represents the amount of money Kristine earns making x custom t-shirts. The expression x − 1 represents her upfront costs. If x represents the number of t-shirts sold in both expressions, what is Kristine's profit when she sells 4 shirts?
$27
$10
$30
$33
The profit of the sales is (a) $27
How to determine the profitFrom the question, we have the following parameters that can be used in our computation:
The expression 6x + 6 represents the amount of money Kristine earns making x custom t-shirts. The expression x − 1 represents her upfront costs.This means that
Profit = 6x + 6 - x + 1
Evaluate the like terms
Profit = 5x + 7
When x = 4, we have
Profit = 5 * 4 + 7
Evaluate
Progit = 27
Hence, the profit is $27
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Answer:
A:$27
Step-by-step explanation:
i took the test and got it right
What is the formula for Y form?.
The equation, y = mx + b, is the slope-intercept form of a straight line.
Here, x and y are the coordinates of the points, m is the gradient, and b is the intercept of the y-axis.
y = mx + b is the slope-intercept form of the equation of a straight line. In the equation y = mx + b, m is the slope of the line and b is the intercept.
The value of b is equal to y when x = 0, and m shows how steep the line is. The slope of the line is also called the gradient.
To find the equation of the straight line, we use the slope-intercept form, y = mx + b, where m is the slope of the line, b is the y-intercept of the line.
We can find the equation of a line in the form of y = mx + b, if the coordinates of points forming the line are known to us.
Thus, The equation, y = mx + b, is the slope-intercept form of a straight line.
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How do you write eight more than a number?.
To write 8 more than a number, we use the mathematical operation of addition and the notation 8+ Number = N+8.
To write 8 more than a number, we need to use the mathematical operation of addition. Addition is the process of combining two or more numbers to find the total or sum.
In this case, we are given the number 5 and we are asked to find the number that is 3 more than it. To do this, we can use the mathematical notation: 8 + Number = N+8.
This notation means that we are adding 8 to a number, which results in N+8. The "+" symbol is the addition operator and it is used to indicate that we are performing an addition operation. The "=" symbol is used to indicate that the result of the addition is N+8.
Another way to write 8 more than a number is to use the phrase "8 plus a number". This phrase indicates that we are adding 8 to a number to get N+8.
Therefore, In short, to write 8 more than a number, we use the mathematical operation of addition and the notation 8 + Number = N+8. This means that we are adding 8 to a number, resulting in N+8. It can also be written as "8 plus N", indicating the same operation.
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it take a bus 1 hour and 30 minutes to travel 48 miles
Calculate the average speed of the bus in mph
if your answer is a decimal, give it to 1 d.p
Step-by-step explanation:
48 miles in 1 hour 30 minutes (1.5 hours = 3/2 hours).
speed = distance/time
as mph is requested, the time is 1 hour.
in our case the direct speed ratio is
48/1.5
to bring that to the regular miles per 1 hour we need to transform it. here I would use fractions and simplify :
48/1.5 = 48/ 3/2 = (2×48)/(3×1) = 96/3 =
= 32/1 = 32 mph
the speed of the bus was 32 mph.
Find the x-intercept and y-intercept of the line.
7x-5y=35
Answer:
Step-by-step explanation:
The x -intercept is the point where y = 0 so:
7x - 5(0) = 35
x = 35/7 = 5
x-intercept is at (5, 0)
The y -intercept is the point where x = 0 so:
7(0) - 5y = 35
y = 35/-5 = -7
x-intercept is at (0, -7)
Answer:
x (5, 0)
y (7, 0)
THE FIRST PERSON TO GET THIS RIGHT GETS 10 POINTS AND BRAINLIEST! MUST BE RIGHT AND IF THE ANSWER IS YES, THEN ALSO ANSWER WHAT IS THE CONSTANT OF PROPORTIONALITY
Answer:
No
Step-by-step explanation:
Bill’s FICA tax is 7.65% of his earnings of 325.78 per week. How much FICA tax should his employer withhold?
A. $27.92
B.$26.42
C. $25.28
D. $24.92
The employer of Bill’s FICA should withhold D. $24.92 in taxes
What is a percentage?Percentage is defined as the number that represents a ratio of a total that is divided by 100 equal parts. It is represented by the symbol %.
To solve this exercise, the percentage formula and the procedure to be applied is as follows:
n= (% * nt) / 100
Where:
% = percentagen= number portionnt = total of the number portionInformation about the problem:
% = 7.65%nt = $325.78n = ?Using the percentage formulate, we get how much FICA tax should his employer withhold:
n= (% * nt) / 100
n = (7.65 * $325.78)/100
n = $2492.22/100
n = $24.92
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