Answer:
36 hours (1 1/2 days, 351$ )
Step-by-step explanation:
create a linear system and solve.
8.25x + 54 = 9.75x
_______________
-8.25x -8.25x
_______________
54 = 1.5x
_______________
1.5 x = 54
_______________
÷ 1.5. ÷1.5
_______________
x = 36.
if you want to know how much money they will have at this time, just substitute the x value that you solved for back into the equation
x = 36 -> 8.25(x) + 54 = 9.75(x)
8.25(36) + 54 = 9.75(36)
297 + 54 = 351
351 = 351
________________________________
David's budget >= 54$
Fatima's budget >= 0$
The required inequality is 8.25x + 54 = 9.75x
It will take 36 hours for David to have as much as Fatima.
David :
Initial saving = 54
Pay per hour = $8.25
Fatima :
Pay per hour = $9.75
Let number of hours worked = x
David's total = $8.25x + 54
Fatima's total = 9.75x
In other to have the same amount :
8.25x + 54 = 9.75x
Collect like terms :
8.25x - 9.75x = - 54
-1.5x = - 54
x = - 54 / - 1.5
x = 36
Hence, it will take 36 hours for David to have as much as Fatima.
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there are 3 plots in Kevin's garden. Last year Kevin planted 10 lilies in one plot. This year, there are 30 lilies on each plot. How many total lilies are on Kevin's land now?
Answer:He used 6 plots of land.
explanation:
total no. of plots =10 (land was divided in 10 equal parts)
used plots = 3/5 of 10 =3/5*10 =6
Step-by-step explanation:
An element with a mass of 310 grams disintegrates at 5.7% per minute. How much of the element remains after 9 minutes, to the nearest tenth of a gram?
Answer:
Step-by-step explanation:
I think 17.5
find the average rate of change of the function over the given interval. p(θ)=θ3−5θ2 6θ; [1,2]
The average rate of change of the function p(θ) over the interval [1,2] is 0.
The average rate of change of a function over an interval is given by the slope of the secant line that connects the two points on the function at the endpoints of the interval.
For the function p(θ)=θ^3−5θ^2 + 6θ and the interval [1,2], the average rate of change can be calculated as:
(p(2) - p(1)) / (2 - 1) = ((2^3 - 5 × 2^2 + 6 × 2) - (1^3 - 5 × 1^2 + 6 × 1)) / (2 - 1) = ((8 - 20 + 12) - (1 - 5 + 6)) / (2 - 1) = (0) / (1) = 0.
So, the average rate of change of the function p(θ) over the interval [1,2] is 0.
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Estimate the quotient: 1,908÷36
Answer:
1,908÷36=53 estimation equals 50
Step-by-step explanation:
It is 50 because 53 is close to 50 not 60 if it equaled 55 or 56 then yeah it would be 60 but in this case it is 50!
Mr. Green's science class needs to collect $46.00 to purchase a snake, food, and bedding. In addition, the class will need $50.83 for the snake's cage and supplies. If there are 23 students in the class, what is the average amount each student needs to collect?
Lacey has two pieces of ribbon, one 30 inches long and the other 48 inches long. To decorate an album, she wants to cut them up to produce many pieces of ribbon that are all of the same length, with no ribbon left over. What is the greatest length, in inches, that she can make them?
The greatest length, in inches, that she can make from the two pieces of ribbon is 6 inches
Greatest common factorRibbon A = 30 inches longRibbon B = 48 inches longFind the factors of 30 and 48
30 = 1, 2, 3, 5, 6, 10, 15 and 30.48 = 1, 2, 3, 4, 6, 8, 12, 16, 24 and 48.The greatest common factor of 30 and 48 is 6
Therefore,
Ribbon A can be cut into = 30 / 6
= 5 pieces
Ribbon B = 48/6
= 8 pieces
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In circle I, IJ=4 and mJIK∠=90∘ Find the area of shaded sector. Express your answer as a fraction times π.
The area of the shaded sector is 4π square units.
To find the area of the shaded sector, we need to calculate the central angle formed by the sector. In this case, we are given that the angle JIK is 90 degrees, which means it forms a quarter of a full circle.
Since a full circle has 360 degrees, the central angle of the shaded sector is 90 degrees.
Next, we need to determine the radius of the circle. The line segment IJ represents the radius of the circle, and it is given as 4 units.
The formula to calculate the area of a sector is A = (θ/360) * π * r², where θ is the central angle and r is the radius of the circle.
Plugging in the values, we have A = (90/360) * π * 4².
Simplifying, A = (1/4) * π * 16.
Further simplifying, A = (1/4) * π * 16.
Canceling out the common factors, A = π * 4.
Hence, the area of the shaded sector is 4π square units.
Therefore, the area of the shaded sector, expressed as a fraction times π, is 4π/1.
In summary, the area of the shaded sector is 4π square units, or 4π/1 when expressed as a fraction times π.
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heyy pls answer quickly i need help on math again
===========================================================
Explanation:
y = 5 because the long leg is exactly sqrt(3) times that of the short leg.
The short leg is always opposite the 30 degree angle.
The hypotenuse x is twice that of y, so x = 2y = 2*5 = 10
All of these rules only apply to 30-60-90 triangles. You can use trig ratios as an alternative route.
What is Swift's proposal ?.
how do u do thissss??
reflect this shape in the line y=x :)
Answer:
the x-coordinate and y-coordinate change places.
Step-by-step explanation: so you reflect a point across the line y = x, the x-coordinate and y-coordinate change places. If you reflect over the line y = -x, the x-coordinate and y-coordinate change places and are negated (the signs are changed). the line y = x is the point (y, x). the line y = -x is the point (-y, -x).
True or False?
k = 2 is a solution to the inequality 8k+ 4 > 18.
Answer:
True
Step-by-step explanation:
If k = 2, then we plug in 2 for every instance there is a k. So...
8k + 4 > 18
Will turn into...
8(2) + 4 > 18
Then solve using PEMDAS (or whatever you were taught. Parenthesis, Exponent, Multiplication/Division, Addition/Subtraction.)
16 + 4 > 18
20 > 18
Since 20 is greater than 18, 2 can be a solution for this inequality.
A jar contains 5 blue, 3 red. and 7 white balls. What is the approximate probability of drawing a blue or red ball on the first draw?
A. 33%
B. 80%
C. 53%
D. 67%
Answer:
C
Step-by-step explanation:
write an equation that goes through (4,3) and is parallel to 2y+8x=20
47 Step-by-step explanation:
first correct answer will get brainliest
Write the equation in point-slope form for the line that passes through the given point and has the given slope. (1, 2), slope 3
Answer:
y-y1 = m(x-x1)
y - 2 = 3(x-1)
y=3x-3+2
y=3x-1
Step-by-step explanation:
first you type down point slope formula
then you plug in the information you have point (1,2) 1 is x1 and 2 is y1 m is 3 because m = slope
then you have to distribute the 3 to the x and the -1 and then isolate y
(how to isolate the y) you must do the opposite of -2 which is +2 whatever you do on one side you have to do to the other
then you combine like terms 3x is alone and -3 +2 equals -1
there is your answer hope that works.
Work out the value of x
2x + 13
x-4
x+7
(Look at the photo attached)
Answer:
x = 41
Step-by-step explanation:
The sum of the 3 angles in a triangle = 180°
Sum the 3 given angles and equate to 180
2x + 13 + x - 4 + x + 7 = 180, that is
4x + 16 = 180 ( subtract 16 from both sides )
4x = 164 ( divide both sides by 4 )
x = 41
Answer:
x=41
Step-by-step explanation:
we know that all the angles need to add up to 180
The angle on top is almost a right angle(90) but is not exactly
playing with the numbers will help
95-13=82/2=41
lets continue with this and see if it works out
41+7=48
41-4=37
48+95+37=180
hope this helps!
x²=9/25
what is it
need help reply
A square has a side length of 4a. One dimension is decreased by 5 and the other dimension is decreased by 5. Expand and simplify the expression that represents the area of the resulting rectangle
Answer:
\(Area= 16a^2-40a+25\)
Step-by-step explanation:
given that the side of the square is 4a
The expression for the area can be solved by
1. subtracting 5 from the sides of the square i.e (4a-5)
2. Solving for the area of the square using
\(Area= l^2\)
\(Area= (4a-5)^2\\Area= (4a-5)(4a-5)\\\)
opening the bracket and expending we have
\(Area= 16a^2-20a-20a+25\\Area= 16a^2-40a+25\)
the expression is \(Area= 16a^2-40a+25\)
a survey asks adults to report their marital status. suppose that in the city which the survey is conducted, 41% of adults are married, 14% are single, 25% are divorced, and 20% are widowed. find the probabilities of each of the following events: the adult is single
The probability that an adult in the city is single is 14%.
In the given city, based on the survey results, the percentages of adults with different marital statuses are provided. To find the probability of an adult being single, we look at the percentage of single individuals, which is 14%. Therefore, the probability of an adult being single is 14%.
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PLEASE HELP ME !!!!!!!!!!! Will mark Brianliest correct answer !!!!!!!!!!!!!!!!!!!!!!!!
Answer:
9 inches
Step-by-step explanation:
The price of widgets has increased from $6 to $12, causing the quantity supplied to increase from 100 to 300 units. Use the midpoint method to calculate the price elasticity of supply.
The price pliantness of force using th midpoint method is1.5. This implies that the volume supplied is fairley elastic, as a 1 increase in price leads to a1.5 increase in the volume supplied.
To calculate the price pliantness of force using the midpoint system, we need to use the following formula
Pliantness of force = ( Chance Change in volume Supplied)( Chance Change in Price)
First, let's calculate the chance change in volume supplied
Chance Change in Quantity Supplied = (( New Quantity Supplied-original volume Supplied)( Average volume Supplied)) * 100
original volume Supplied = 100
New Quantity Supplied = 300
Average volume Supplied = ( original volume Supplied New Quantity Supplied)/ 2
Average volume Supplied = ( 100 300)/ 2 = 200
Chance Change in Quantity Supplied = (( 300- 100)/ 200) * 100
= ( 200/ 200) * 100
= 100
Next, let's calculate the chance change in price
Chance Change in Price = (( New Price-original Price)/( Average Price)) * 100
original Price = $ 6
New Price = $ 12
Average Price = ( original Price New Price)/ 2
Average Price = ($ 6$ 12)/ 2 = $ 9
Chance Change in Price = (($ 12-$ 6)/$ 9) * 100
= ($ 6/$ 9) * 100
= 66.67
Eventually, we can calculate the price pliantness of force
Pliantness of force = ( Chance Change in volume Supplied)( Chance Change in Price)
= 100/66.67
= 1.5
thus, the price pliantness of force using the midpoint method is1.5. This implies that the volume supplied is fairly elastic, as a 1 increase in price leads to a1.5 increase in the volume supplied.
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A recent survey of 8,000 high school students found that the mean price of a prom dress was $195. 00 with a standard deviation of $12. 0. Alyssa thinks that her school is more fashion conscious and that students spent more than $195. 0. She collected data from 20 people in her high school and found that the average price spent on a prom dress was $208. 0. Which of the following are the correct null hypothesis and alternate hypothesis? H0: Mu = 195; Ha: Mu greater-than 195 H0: Mu not-equals 195; Ha: Mu = 208 H0: Mu = 195; Ha: Mu not-equals 195 H0: Mu = 195; Ha: Mu greater-than-or-equal-to 208.
The correct null hypothesis and alternate hypothesis will be
\(H_{0} =\mu=195\\H_{a} =\mu > 195\)
What will be the correct null hypothesis and alternate hypothesis?It is given that
The mean price of a prom dress was $195. 00 with a standard deviation of $12. 0
Given that Alyssa thinks that her school is more fashion-conscious and that students spent more than $195.00.
She collected data from 20 people in her high school and found that the average price spent on a prom dress was $208.00.
Since she wants to check whether the sample mean \(\mu\) is the same as the population mean \(\mu\) = 195
\(H_{0} =\mu=195\\H_{a} =\mu > 195\)
(Right hypothesis test)
Thus the correct null hypothesis and alternate hypothesis will be
\(H_{0} =\mu=195\\H_{a} =\mu > 195\)
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Answer: OPTION A
Step-by-step explanation:
x divided by 2 times 2
Answer:
x divided by 2 times 2 simplifies to x.
Step-by-step explanation:
Answer:
The expression "x divided by 2 times 2" can be simplified as follows: x / 2 * 2 = x * (2 / 2) = x * 1 = x
Therefore, the answer is x.
Step-by-step explanation:
Solve for the variable x.
Answer:
x = 84/5 = 16.8
Step-by-step explanation:
The angle bisector theorem said that
21/15 = x/12
==> 7/5 = x/12
==> x = 84/5
Select all the correct answers for the expression T(n) below. T(n)=(31)n+2100+81log3n+n3lg(n7) T(n)=O(81log3n)T(n)=O(n3lg(n7))T(n)=Ω(n3lg(n7))T(n)=O((31)n)
The correct answers for the expression T(n) are:
- T(n) = O(81log₃n)
- T(n) = O(n³lg(n⁷))
- T(n) = Ω(n³lg(n⁷))
These answers are correct because:
- T(n) = O(81log₃n): This indicates that T(n) has an upper bound of 81log₃n, meaning it grows at most logarithmically with base 3.
- T(n) = O(n³lg(n⁷)): This signifies that T(n) has an upper bound of n³lg(n⁷), indicating it grows no faster than n³ multiplied by the logarithm of n⁷.
- T(n) = Ω(n³lg(n⁷)): This means that T(n) has a lower bound of n³lg(n⁷), suggesting it grows at least as fast as n³ multiplied by the logarithm of n⁷.
However, T(n) = O((31ⁿ)) is not a correct answer. This is because the expression (31ⁿ) grows exponentially with n and is not an upper bound for T(n).
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for a non-constant member function of class test, the this pointer has type: A.const Test *B.Test * constc. C.Test const *D.const Test * const
For a non-constant member function of class test, the this pointer has type D. const Test * const. The this pointer is a special pointer in C++ that points to the object whose member function is being executed.
It is a hidden parameter that is passed to all non-static member functions. The type of the this pointer depends on the const-ness of the member function and the const-ness of the object on which the member function is being called.
In this case, the member function is non-constant, which means it can modify the object on which it is being called. Therefore, the this pointer is a pointer to a constant object of type Test. This is because the object on which the member function is being called is being treated as constant inside the member function, even though it may not actually be constant.
The const keyword before Test indicates that the object pointed to by the this pointer is constant, and the const keyword after Test indicates that the this pointer itself is constant and cannot be modified. Therefore, the correct answer is D. const Test * const.
In summary, the type of the this pointer for a non-constant member function of class test is a pointer to a constant object of type Test, which is itself a constant pointer that cannot be modified.
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Is #7 right? I want to know if my answer is right
Given
Find
NQ
Explanation
As we see ,
NQ = NP + PQ
NP = 1 1/4 in
PQ = 1 in
so ,
NQ =
\(\begin{gathered} 1\frac{1}{4}+1 \\ \\ \frac{5}{4}+1 \\ \\ \frac{9}{4} \\ \\ 2\frac{1}{4}in \end{gathered}\)Final Answer
Hence , the length of NQ is 2 1/4 in
Details
A movie theater has a seating capacity of 205. The theater charges $5.00 for
children, $7.00 for
students, and $12.00 of adults. There are half as many
adults as there are children. If the total ticket sales was $ 1482, How many
children, students, and adults attended?
Answer:
94 children, 64 students, and 47 adults attended the movie theater.
Step-by-step explanation:
Let; a be for adults, s for students, and c for children.
Make a system to solve for the amount of people.
c/a = 2
a + 2a + s = 205
3a + s = 205
Simplify.
s = 205 - 3a
s = 205 - 3a
c = 2a
Plug it in.
5c + 7s + 12a = 1482
10a + 7(205 -3a) + 12a = 1482
10a + 1435 - 21a + 12a = 1482
a + 1435 = 1482
a = 47
Substitute.
c = 2(47)
c = 94
Solve.
s = 205 - 3(47)
s = 64
What is the Value of d
Step-by-step explanation:
\( \sqrt{4 \times 9 \times 16} = \sqrt{4} \times \sqrt{9} \times \sqrt{16} = 2 \times 3 \times 4 = 24\)
A friend of ours takes the bus five days per week to her job. The five waiting times until she can board the bus are a random sample from a uniform distribution on the interval from 0 to 10 min. Determine the pdf and then the expected value of the largest of the five waiting times.
The probability density function (pdf) of the largest of the five waiting times is given by: f(x) = 4/10^5 * x^4, where x is a real number between 0 and 10. The expected value of the largest of the five waiting times is 8.33 minutes.
The pdf of the largest of the five waiting times can be found by considering the order statistics of the waiting times. The order statistics are the values of the waiting times sorted from smallest to largest.
In this case, the order statistics are X1, X2, X3, X4, and X5. The largest of the five waiting times is X5.
The pdf of X5 can be found by considering the cumulative distribution function (cdf) of X5. The cdf of X5 is given by: F(x) = (x/10)^5
where x is a real number between 0 and 10. The pdf of X5 can be found by differentiating the cdf of X5. This gives: f(x) = 4/10^5 * x^4
The expected value of X5 can be found by integrating the pdf of X5 from 0 to 10. This gives: E[X5] = ∫_0^10 4/10^5 * x^4 dx = 8.33
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anyone solve this??????????????????????????????????
Answer:
16
Step-by-step explanation:
9-9:9 +9 - 9 :9 =
9 - 1 +9 - 1 =
8 +9 - 1 =
17 - 1 =
16