They have total of 70 dolls together.
Let the initial number of dolls Jack had be 5x and the number Peter had be 2x.
After Jack gave Peter 15 dolls, their amounts became equal. So, we can write the equation: 5x - 15 = 2x + 15
Now, solve the equation for x: 5x - 2x = 15 + 15, which simplifies to 3x = 30
Divide both sides by 3: x = 10
Now, find the initial number of dolls they had: Jack had 5x = 5(10) = 50 dolls, and Peter had 2x = 2(10) = 20 dolls.
After Jack gave Peter 15 dolls, both had 35 dolls (50 - 15 = 35, and 20 + 15 = 35).
So, together they have 35 + 35 = 70 dolls.
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A line segment has an endpoint at (-6,6), and its midpoint is at (5,5). What is the ordered pair for the other endpoint of the line segment
Answer:
The right endpoint coordinates are (16, 4).
Step-by-step explanation:
Going from (-6, 6) to (5, 5), we see x increasing by 11 and y decreasing by 1. We want to find the coordinates of the other endpoint, which lies to the right of the given midpoint. The increase in x from the midpoint to the right end point is 11 and the decrease in y is 1.
To find the coordinates of the right end point, start with the midpoint and increase its x-coordinate by 11 and decrease its y-coordinate by 1. We get:
(5 + 11, 5 - 1), or (16, 4).
The right endpoint coordinates are (16, 4).
judy selected ten states and then calculated statistics on them. which statement best describes the resulting statistics?
The statement best describing is only statistics for the ten states are reported
The study of statistics focuses on gathering, organizing, organizing, analyzing, interpreting, and presenting data. Statistics can be used to make future predictions calculate the likelihood that a given event will occur, or provide information about a survey. It primarily serves to convey knowledge, compute probabilities, and store records. In essence, it improves our understanding of the world by using numbers and other quantitative data.
In the given case, a total of ten states were selected by Judy and then the statical analysis was made. As per the given options, the correct option is that only statistics for the ten states are reported. This is because the number of terms, which are the states is ten.
Complete Question
Judy selected ten states and then calculated statistics on them. Which statement best describes the resulting statistics?
Only statistics for the ten states are reported.
No statistics are reported.
Statistics for all fifty U.S. states are reported.
The number of states included in the report depends on whether an attribute, interactive or spatial query was used to make the selection.
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Factorise : 625² − 121² by using suitable identity
Answer:
(625 - 121)(625 + 121)
Step-by-step explanation:
625² - 121² ← is a difference of squares and factors in general as
a² - b² = (a - b)(a + b)
then
625² - 121²
= (625 - 121)(625 + 121) ← in factored form
Tyler earned $48 this week. Priya earned $56 this week. The mean money earned for this week for Tyler, Priya, and Elena was $54.
1. What amount did Elena earn this week?
The amount Elena earned was ___$
The solution is:
1) The number of miles Priya ran last week was 43 miles
2) The way Elena found Priya's miles is faster compared to the way it was found here
Here, we have,
1) The number of miles Priya ran this week = The number of miles Priya ran last week - 7
The number of miles Priya ran this week = 9 × The number of miles Elena ran this week
The number of miles Elena ran this week = 4 miles
Therefore;
Let the number of miles Priya ran last week = x miles
The number of miles Priya ran this week = (x - 7) miles
Therefore, we have
(x - 7) = 9 × The number of miles Elena ran this week = 9 × 4 miles = 36 miles
x = (36 + 7) miles = 43 miles
The number of miles Priya ran last week = x miles = 43 miles
The number of miles Priya ran last week = 43 miles
2) From (x - 7) = 9 × The number of miles Elena ran this week = 9 × 4 miles = 36 miles, we have;
(x - 7) = 9 × 4
1/9(x - 7) = 4
Therefore, multiplying by 9, we have;
9 × 1/9(x - 7) = 9 × 4
(x - 7) = 9 × 4 = 36
x - 7 + 7 = 36 + 7
x = 43 miles
Therefore, the way Elena found Priya's miles is faster compared to the way it is found here.
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complete question:
Priya was busy studying this week and ran 7 fewer miles than last week. She ran 9 times as far as Elena ran this week. Elena only had time to run 4 miles this week.
How many miles did Priya run last week
Elena writes the equation 1/9(x﹣7) = 4 to describe the situation. She solves the equation by multiplying each side by 9 and then adding 7 to each side. How does her solution compare to the way you found Priya’s miles?
the marketing club at school is opening a student store. they randomly survey 50 students about how much money they spend on lunch each day. what is the expected value for a student to spend on lunch each day? student lunch surveynumber of studentsdollars spent onlunch each day2$101$812$623$58$44$3$2.59$5.11$5.18$9.07
The expected value for a student to spend on lunch each day is $7.09.
To calculate the expected value for a student to spend on lunch each day based on the survey data,
we need to find the average amount spent by each student.
We can calculate the expected value by summing up the products of the number of students and the amount spent on lunch for each category, and then dividing by the total number of students:
Expected value = \((2 * 10 + 1 * 8 + 2 * 6 + 3 * 5 + 8 * 4 + 11 * 3 + 10 * 2.59 + 13 * 5.11 + 10 * 5.18 + 10 * 9.07) / 50\)
Expected value = \((20 + 8 + 12 + 15 + 32 + 33 + 25.9 + 55.21 + 51.8 + 90.7) / 50\)
Expected value = $354.71 / 50
Expected value ≈ $7.09
Therefore, based on the survey data, the expected value for a student to spend on lunch each day is approximately $7.09.
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Please help meeeeee! Thank you so much!!
Answer:
b
Step-by-step explanation:
It costs $2.80 to make a sandwich at the local deli shop. To make a profit, the deli sells it at a price that is 170% of the cost. The sandwich sells for $___. (Make sure to enter the answer as a decimal number only. Do not enter special characters such as the dollar symbol.)
Answer:
$4.76
Step-by-step explanation:
It costs $2.80 to make a sandwich at the local deli shop and the deli sells it at a price that is 170% of the cost.
We have to find 170% of the cost of making each sandwich ($2.80):
170/100 * 2.80 = $4.76
The sandwich sells for $4.76
Answer:
ben
Step-by-step explanation:
Which of the following is the solution to the inequality −2x+4<20 ?
Answer:
x is less than or equal to 16
Step-by-step explanation:
- 2 x x + 4 < 20
Isolate the variable
divide 2 from 2 = 0
x + 4 < 20
x is less than or equal to 16
Find the coordinates for the midpoint of the segment with endpoints given.
(12, 4) and (-8, 8)
O (2,6)
O (10,6)
O (2, 2)
Answer:
(2, 6)
Step-by-step explanation:
( \(x_{1}\) , \(y_{1}\) )
( \(x_{2}\) , \(y_{2}\) )
Coordinates of midpoint are
( \(\frac{x_{1} +x_{2} }{2}\) , \(\frac{y_{1} +y_{2} }{2}\) )
~~~~~~~~~~~~~~
(12, 4)
(- 8, 8)
( \(\frac{-8+12}{2}\) , \(\frac{8+4}{2}\) ) = (2, 6)
A and B are partner in a business .A contribution RS 20000 and B rs 30000 a however acts as a manager the understanding being that of the profit should get 25% for his service as manager the remaining divided in the ratio of their contribution .If B ges Rs 1350 Ashish share what would A get
Answer:
Rs 1,650
Step-by-step explanation:
The given contribution are;
A contributes Rs 20,000, and B contributes Rs 30,000
The percentage of the profit A receives as manager = 25%
The amount of the profit divided in the ratio of their contribution = The remaining profit (75%)
The amount B gets = Rs1,350
The amount A gets = required
The ratio of their contribution at which the remaining profit is shared = 20,000:30,000 = 2:3
Where, out of 5 parts of 75% of the profits, B gets 3, while A gets 2
Let P represent the profit, we have;
B's share = 3/5× 0.75 × P = 1,350
∴ P = (5 × 1,350/3)/0.75 = 3,000
A gets 25% of the profits and 2/5 of the 75% remaining profit
∴ The amount A gets = 0.25×3000 + (2/5)×0.75×3000 = 1,650
Or simply put;
A gets the remainder of the profit which is Rs 3,000 - Rs 1,350 = Rs 1,650
Solve the inequality. (Ape.x)
16(1/4x - 1/2) > 24 - 2x
Thank you in advance for any help!
Answer:
x>14
Step-by-step explanation:
Step 1: Simplify both sides of the inequality.
-4>-2x+24
Step 2: Flip the equation.
-2x+24<-4
Step 3: Subtract 24 from both sides.
-2x+24-24<-4-24
-2x<-28
Step 4: Divide both sides by -2.
-2x-2<-28-2
x>14
If it is right can I have brainliest.
Answer:
woomy...
Step-by-step explanation:
What is the answer asp
Answer:
d
Step-by-step explanation:
using the tangent ratio in the right triangle
tan D = \(\frac{opposite}{adjacent}\) = \(\frac{EF}{DE}\) = \(\frac{9}{15}\) , then
∠ D = \(tan^{-1}\) ( \(\frac{9}{15}\) ) ≈ 31.0° ( to the nearest tenth )
PLEASE HELP!!!!!
What is the distance between the points X(-4,3) and Y(2, -7) rounded to the nearest tenth? show your work.
O 11.7 units
O 8.0 units
O 16.0 units
O 4.5 units
Answer:
11.7 units
Step-by-step explanation:
sq root(2--4)^2+(-7-3)^2
sq root(6)^2 + (-10)^2
sq root (36)+(100)
sq root 136
equals 11.66 which rounds up to 11.7
I need help please! What’s the answer?
Answer:
x = 17.32 units
Step-by-step explanation:
In a right triangle tan (angle) = opposite leg / adjacent leg...
for this triangle tan 27° = 34 / x
then x = 34 tan 27° = 17.32 units
What is the value of the expression below? 5+2(10 + 5)
In a Survey of 500 people , 350 people dank only one drink. 60 people dink none them. Find the number of people who drink both ,
Answer:
90
Step-by-step explanation:
350+60= 410 & 500-410=90
Answer: The number of people who drank both is 90
This is because we need to subtract 350 people from 500 people, because we know that they didn't drink the drink. We have 150 people left. Another 60 people don't drink the drink at all, so we need to subtract that from the remaining 150 people left. We get the solution of 90 people who could only have drank both drinks based of of the givens you have provided.
If a fraction is equal to 3/7 and the sum of the numerator and denominator is 100, what is the fraction?
The fraction is equal to 3/7
the sum of numerator and denominator is equal to 100
Let the numerator = x
Since, Numerator + Denominator = 100
x + Denominator = 100
Denominator = 100 - x
Thus, the fraction is in the form of;
\(\frac{Numerator}{Deno\min ator}=\frac{x}{100-x}\)Since it is given that the fraction is equal to 3/7
So,
\(\frac{x}{100-x}=\frac{3}{7}\)Simplify the expression for x;
\(\begin{gathered} \frac{x}{100-x}=\frac{3}{7} \\ \text{ Apply crossmultiplication;} \\ 7x=3(100-x) \\ 7x=300-3x \\ 7x+3x=300 \\ 10x=300 \\ x=\frac{300}{10} \\ x=30 \end{gathered}\)So, the numerator is 30
Since, Denominator = 100 - x
Substitute x = 30
Denominator = 100 - x
Denominator = 100 - 30
Denominator = 70
Thus, we have numerato = 30 denominator = 70
So, the resulting fraction is given as;
\(\frac{30}{70}\)Answer: 30/70
Solve for a, 7-a=3 A.10 B.4 C.2 D5
Answer:
B
Step-by-step explanation:
7 - a + 3
subtract 7 from both sides.
-a = 3 - 7
add like terms (3 + - 7)
-a = -4
divide both sides by -1. (remember that in front of the a, a 1 is there.)
a = 4
answer: b. 4
A student club is designing a trebuchet for launching a pumpkin into projectile motion. Based on an analysis of their design, they predict that the trajectory of the launched pumpkin will be parabolic and described by the equation y(x)=ax^2+bx where a=−8.0×10^−3 m^−1, b=1.0(unitless), x is the horizontal position along the pumpkin trajectory and y is the vertical position along the trajectory. The students decide to continue their analysis to predict at what position the pumpkin will reach its maximum height and the value of the maximum height. What is the derivative of the vertical position of the pumpkin trajectory with respect to its horizontal position?
a. dy/dx = ax
b. dy/dx = 2ax
c. dy/dx = 2ax+b
d. dy/dx = 0
The derivative of the vertical position of the pumpkin trajectory with respect to its horizontal position is 2ax, as given by option b.
To find the position of maximum height of the pumpkin, the students need to find the point where the derivative of the vertical position with respect to the horizontal position is equal to zero. Setting 2ax equal to zero and solving for x, we get x=0. This means that the pumpkin reaches its maximum height at x=0, or in other words, at the point where it is launched from the trebuchet.
To find the value of the maximum height, we can substitute x=0 into the original equation for the pumpkin's trajectory. This gives us y(0) = b, which means that the maximum height of the pumpkin is b units.
The derivative of the vertical position of the pumpkin trajectory with respect to its horizontal position is 2ax because the derivative of ax^2 with respect to x is 2ax. This means that the rate of change of the pumpkin's height with respect to its horizontal position is proportional to 2ax. When x is zero, the derivative is also zero, which indicates that the pumpkin has reached its maximum height at that point.
This is because at the maximum height, the rate of change of height with respect to horizontal distance is zero. Finally, we find the value of the maximum height by substituting x=0 into the equation for the pumpkin's trajectory.
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Find F If F' (X) = 16x^3 + 14x + 7 And F(1) = -5. Answer: F(X) =
By using the power rule of integration, the solution for F(x) is: F(x) = \(4x^4 + 7x^2 + 7x - 23\)
To find F, we need to integrate F'(x) with respect to x.
So, F(x) = ∫(16x³ + 14x + 7) dx
Using the power rule of integration, we can integrate each term separately.
∫(16x³) dx = \(4x^4\) + C1
∫(14x) dx = 7x² + C2
∫(7) dx = 7x + C3
Adding all of these results, we get:
F(x) = \(4x^4\) + 7x² + 7x + C
Now, we need to use the initial condition F(1) = -5 to solve for the constant C.
F(1) = \(4(1)^4\) + 7(1)² + 7(1) + C = -5
Simplifying this equation, we get:
4 + 7 + 7 + C = -5
C = -23
Therefore, the solution for F(x) is: F(x) = \(4x^4 + 7x^2 + 7x - 23\)
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Fill in the table using this function rule.
=y−293x
The table of values for the function rule is
n | f(x)
0 | 29
2 | 35
4 | 41
6 | 47
How to complete the table of valuesFrom the question, we have the following parameters that can be used in our computation:
y = 29 + 3x
To fill in a table using a function rule, we apply the function rule to each input to calculate the corresponding output, and write these values in the right-hand column of the table
We have the x values to be
x = 0, 2 4 and 6
Substitute the known values in the above equation, so, we have the following representation
y = 29 + 3(0) = 29
y = 29 + 3(2) = 35
y = 29 + 3(4) = 41
y = 29 + 3(6) = 47
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Can someone please help me
Answer:
Step-by-step explanation:
the area of a parallelogram is the same as a rectangle, well, uses the same formula. therefore it uses base × height.
for this equation we need to do 7.1 × 11.4
7.1 × 11.4 = 80.94
if you need to round the number to a whole number, it will be 81 because the first decimal digit is the number 9, and any decimal number 5 or up rounds up to the next number :D
good luck :)
-cheesetoasty
what would you expect to see in a residual plot if the linearity assumption is correct? select all that apply.
In a residual plot if the linearity assumption is the points are scattered and there is no obvious pattern.
Residual plot:
in statistics, residual value is a measure of how much a regression line vertically misses a data point.
Given,
Here we need to find what would you expect to see in a residual plot if the linearity assumption is correct.
As per the definition of residual plot, there is no obvious pattern for this plot and the positive and negative values are evenly spread across the whole range.
Therefore, in the regression line there are some points are misses the line on the vertical base.
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A football team had 55 players at the start of the season
!!20 POINTS!!
A gas pump measures the amount of gas pumped to the nearest 0.01 gallon.
Which measurement shows an appropriate level of precision for the pump?
Answer:
It's A. 11.12 gallons. I'm sure
Step-by-step explanation:
Find the coordinates of the centroid of the triangle with the given vertices.
F(1, 5), G(-2, 7), H( – 6, 3)
The coordinate of the centroid of the given triangle will be at (-2.33,5).
What is a triangle?A triangle is a 3-sided shape that is occasionally referred to as a triangle. There are three sides and three angles in every triangle, some of which may be the same.
The given triangle with vertices has been drawn.
The midpoint of H( – 6, 3) and F(1, 5) will be as,
x = (-6 + 1)/2 = -2.5
y = (3 + 5)/2 = 4 so D(-2.5,4)
The coordinate of the centroid will intersect 2:1 of the median from the vertex side.
Thus by intercept formula,
x = (2 × -2.5 + 1 × -2)/(2 + 1) and y = (2 × 4 + 1 × 7)/(2 + 1)
x = -2.33 and y = 5
So the coordinate of vertices will be (-2.33,5).
Hence "The specified triangle's centroid's coordinate will be at (-2.33,5)".
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Can someone help explain how to solve
Can someone help explain how to solve
In the picture there are 4 question that are
1) \(A(-6,-2)\rightarrow A^{'}(-6,2)\\B(-3,-6)\rightarrow B^{'}(-3,6)\\C(-2,-2)\rightarrow C^{'}(-2,2)\\\)
2)\(D(15,10)\rightarrow D^{'}(6,4)\\E(5,10)\rightarrow E^{'}(2,4)\\F(10,-5)\rightarrow F^{'}(4,-2)\\\)
3)\(G(-2,7)\rightarrow G^{'}(-7,-2)\\H(-4,8)\rightarrow H^{'}(-8,-4)\\I(-3,5)\rightarrow I^{'}(-5,-3)\\\)
4) \(J(11,-8)\rightarrow J^{'}(1,-5)\\K(6,-1)\rightarrow K^{'}(-4,2)\\L(3,-7)\rightarrow L^{'}(-7,4)\\\)
The transformation has the following form:
1)\((x,y)\rightarrow(x,-y)\)
2)\((x,y)\rightarrow\frac{2}{5}(x,y)\)
3)\((x,y)\rightarrow(-y,x)\\\)
4) It does not have transformation.
Geometric Transformation:
Images of triangles, quadrilaterals, pentagons, and other geometric shapes can undergo geometric transformations through the vertices in a Cartesian plane. Reflection, rotation, and translation are the three transformations; they only affect the geometric figure's location and not its size. Expansion and contraction are the two transformations that alter the geometric figure's size.
It is necessary to know the sort of transformation that took place given the points and their transformations.
1) We observe that point transformation A,B and C are transformed.
The transformation has the following form:
\((x,y)\rightarrow(x,-y)\)
Every x-value remains constant, while every y-value flips from what it was.\((x,y)\rightarrow(x,-y)\)
2)We observe that point transformations D, E, and F are contractions. Let's now identify the scalar that was applied to the transformation. We compute the product of the original point's coordinate and one of the transformation point's coordinates.
\(\frac{D^{'} _{y} }{D_{ y}} =\frac{4}{10} =\frac{2}{5}\)
We multiply the coordinates of points E and F and check the results to make sure this is true.
For E:
\(\frac{2}{5} (5,10)=(2,4)\\Therefore,E^{'} =(2,4)\)
For F:
\(\frac{2}{5} (10,-6)=(4,-2)\\Therefore,F^{'} =(4,-2)\)
Therefore, The transformation has the following form:
\((x,y)\rightarrow\frac{2}{5}(x,y)\)
3)We observe that point transformation G,H and I are transformed.
The transformation has the following form:
\((x,y)\rightarrow(-y,x)\)
Every y-value flips from what it was to the opposite. The x and y values are reversed.\((x,y)\rightarrow(-y,x)\)
4)We observe that point transformation J,K and L are not transformed.
It does not satisfy the condition of the transformation.
Therefore, this is how we solve the transformation.
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A state capital building has a circular floor 94 feet in diameter. The legislature wishes to have the floor carpeted. The lowest bid is $78 per square yard, including installation.
What is the area of the circular floor in square feet? (Round your answer to two decimal places.)
ft2
What is the area of the circular floor in square yards? (Round your answer to two decimal places.)
yd2
How much must the legislature spend (in dollars) for the carpeting project? Round to the nearest dollar.
$
Answer:
The area of the circular floor in square feet is 6,939.78 ft².
The area of the circular floor in square yards is 771.09 yd².
The legislature must spend $60,145 for the carpeting project.
Step-by-step explanation:
The area of a circle is given by the formula A = πr², where r is the radius of the circle. The radius of a circle is half its diameter.
Given the diameter of the state capital building's circular floor is 94 feet, its radius is:
\(\implies r=\dfrac{94}{2}=47\sf \;ft\)
To find the area of the circular floor in square feet, substitute r = 47 into the formula for area of a circle:
\(\begin{aligned}\implies \sf Area &= \pi(47)^2\\&=2209\pi\\&=6939.78\;\sf ft^2\;(2\;d.p.)\end{aligned}\)
Therefore, the area of the circular floor in square feet is 6,939.78 ft² (rounded to two decimal places).
To convert square feet to square yards, divide the area in square feet by 9. Therefore, the area of the circular floor in square yards is:
\(\begin{aligned}\implies \sf Area &= \dfrac{2209\pi}{9}\\&=771.09\; \sf yd^2\;(2\;d.p.)\end{aligned}\)
Therefore, the area of the circular floor in square yards is 771.09 yd² (rounded to two decimal places).
To find the total cost of the project, given the lowest bid for the project is $78 per square yard, multiply the area of the circular floor in square yards by the cost per square yard:
\(\begin{aligned}\implies \sf Total\;cost &=771.09 \cdot \$78\\&=\$60145.02\end{aligned}\)
Therefore, the legislature must spend $60,145 for the carpeting project, (rounded to the nearest dollar).
Need help! Thank you!
Answer:
\( \frac{ \sqrt{10} }{5} \)
or .632
Step-by-step explanation:
You have the beginning right.
However, it is X squared, so once you have the answer from adding the two fractions together, you have to Square Root that answer.
Answer:
x= √(10/25)
Step-by-step explanation:
From what you've written, you're on the right track. The formula is a^2+b^2=c^2. our two sides are a and b (doesn't really matter here which is which). And the hypotenuse, the longest leg the diagonal, is always c. Based on your substitution, everything is correct, except x. x should be squared. so the equation you should have is (1/5)^2 + (3/5)^2=x^2. From there, solve for x by adding a^2 and b^2 to get 10/25 = x^2.
Take the square root of each side to find √(10/25)=√(x^2). This is simplified as x equals plus or minus √(10/25). it's plus or minus because you took the square root. It's important to write that when solving square root. However, since this is a triangle your answer will be positive(you can't have negative distance).
The following shape has 2 pairs of parallel sides.
4
4
8
2
What is the area of the shape?
units?
Answer:
28
Step-by-step explanation:
1/2xbxh=4
To find the total area of the shape, we can subtract the removed area from the larger area. 32-4=28