Answer:
96:144
Step-by-step explanation:
240/5=48
48*2=96
48*3=144
So your answer is 96:144
3.
Mrs. Slana pays a babysitter $10.00 an
hour plus an extra $3 for every hour over
five hours. If Santos babysits for eight
hours, how much money will he make?
Answer: $89
Step-by-step explanation: The equation would be P = 10(x) + 3(x-5) assuming P is profit and x is greater than 5. By pluggin in x, the number of hours, we can find that it is 89.
Answer: Santos will make $89
Step-by-step explanation:
Hour 1 - $10
Hour 2 - $10
Hour 3 - $10
Hour 4 - $10
Hour 5 - $10
Hour 6 - $13
Hour 7 - $13
Hour 8 - $13
if the hour hand of a clock is turned anticlockwise from 2 pm to 9 am, through how many degrees will it have turned?
Answer: The hour hand of a clock makes one complete rotation, 360 degrees, in 12 hours or 720 minutes.
The hour hand of a clock turns 30 degrees in one hour or 0.5 degrees in one minute.
In this case, the hour hand is turned anticlockwise from 2 pm to 9 am, which is 21 hours.
So, it will have turned 21 * 30 = 630 degrees.
It is important to note that this answer only accounts for the rotation of the hour hand and does not take into account the rotation of the minute hand.
Step-by-step explanation:
Please help thank you!
Answer:
i think its done like this
Answer:
12
Step-by-step explanation:
[tex] area = \frac{1}{2} \times \: base \times \: height \\ \frac{1}{2} \times 6 \times height \: = 36 \\ height \: = \frac{36}{3} \\ = 12 \: feet[/tex]
Consider the scatter plot shown. Which shows the line of best fit? Explain your reasoning.
Therefore , the solution of the given problem of scatter plot comes out to be Line 3 to the right of the graph is best fit line.
What is scatter plot?Line of best fit refers to a line through a scatter plot of data points that best expression the relationship between those points.The graphs that show the association between two variables in a data set are called scatter plots. It displays data points either on a Cartesian system or a two-dimensional plane.
Here,
In the xy plane, a scatter plot is displayed. The x-axis has values from 0 to 9 with 1 increments, while the y-axis has values from 0 to 9 with 1 increments.
On the x-axis, data points range from 0 to 3; on the y-axis, they range from 0 to 8.5. There are three lines marked Line 1, Line 2, and Line 3. Line 1 connects the points in a way that places the majority of the points on the left of the line,
Line 2 connects the points in a way that places the majority of the points on both sides of the line, and Line 3 connects the points in a way that places the majority of the points on the right of the line.
Line 3 to the right of the graph is best fit line
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the quotient of 18 and a number a as an experision
The expression is 18/a
What is an algebraic expression?An algebraic expression can be described as mathematical expressions consisting of variables, coefficients, terms, factors and constants.
They are also made up of arithmetic operations, such as;
BracketParenthesesDivisionAdditionSubtractionMultiplication, etcWhat is quotient?A quotient can be defined as a quantity determined by the division of two numbers.
From the information given, we have that;
the quotient of 18 and a number a
This is represented as;
18/a
Hence, the representation is 18/a
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Write a polynomial equation with integer coefficients that has the given roots. x=-2 x=3
Answer:
[tex]\boxed{x^2 - x - 6}[/tex]
Step-by-step explanation:
If a is the root of a polynomial then x-a is a factor of that polynomial
Since - 2 is a root, x -(-2) = x + 2 is a factor
Since 3 is a root, x - 3 is a factor
Multiplying the factors of a polynomial gives you the polynomial equation
So the polynomial equation is
[tex](x + 2)(x-3)[/tex]
Apply FOIL method:
[tex](x + 2)(x-3) \\\\= x\cdot x+ x\left(-3\right)+2x+2\left(-3\right)\\\\= x^2 -3x + 2x -6\\\\x^2 - x - 6\\\\Answer: \boxed{x^2 - x - 6}[/tex]
The rectangle below has the dimensions:
5.3 × 5.7
Create another rectangle that is scaled to 4
times the size of the current rectangle.
Answer:
A rectangle of 10.6 x 11.4 dimensions.
Step-by-step explanation:
(5.3*2)*(5.7*2)=5.3*4*5.7=10.6x11.4.
HELP PLEASE
I HAVE A 15 MINUTS PLEASE HELP ME
The equation perpendicular to the line is y= −1/2 x. Therefore, option B is the correct answer.
What is the equation of a line?The general equation of a straight line is y=mx+c, where m is the gradient, and y = c is the value where the line cuts the y-axis. This number c is called the intercept on the y-axis.
In the given graph, the coordinates are (2, 3) and (0, -1)
Slope m=(-1-3)/(0-2)
= -4/(-2)
m=2
Substitute m=2 and (x, y)=(2, 3) in y=mx+c, we get
3=2(2)+c
c=-1
Substitute m=2 and c=-1 in y=mx+c, we get
y=2x-1
Find any equation perpendicular to the line.
y= −1/2 x
Therefore, option B is the correct answer.
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Obtain an estimate for the following computation by rounding the numbers so that the resulting arithmetic can easily
be performed by hand or in your head. Then, use a calculator to perform the computation. How reasonable is your
estimate when compared to the actual answer?
348 +598
is O
Round the two numbers to the nearest ten. An estimate of the sum is
More
x 946 is not answer also I need help this homework math please
Answer: it should be 946, maybe you worded Wong
Step-by-step explanation:
o obtain an estimate for the computation 348 + 598, we can round the two numbers to the nearest ten.
348 rounded to the nearest ten is 350
598 rounded to the nearest ten is 600
So, our estimate for the sum of 348 + 598 is 350 + 600 = 950
Using a calculator, the actual computation is 348 + 598 = 946
Our estimate of 950 is 4 more than the actual answer of 946. This means that our estimate is slightly higher than the actual answer. This is not a big difference and it is reasonable as the numbers are rounded to nearest 10.
9n - 7 = ______________________________________
Answer: 9n-7
Step-by-step explanation:
9n-7 because there are no like terms
If a driver uses of a tank of gas every day, what fraction of a tank will he use in a) 3 days? b) 1 week?
Answer:
Step-by-step explanation:
a) If a driver uses a full tank of gas every day, the fraction of a tank he will use in 3 days is 3/1, or 3/1 of a tank.
b) If a driver uses a full tank of gas every day, the fraction of a tank he will use in 1 week is 7/1, or 7/1 of a tank.
It's worth noting that tanks of gas come in different sizes, so the amount of gas consumed in a day, week, or any other period of time will depend on the size of the tank, and the consumption of the car, so this answer is based on the assumption that a full tank is used every day.
Write an equation for a line perpendicular to y= -5x-1 and passing through the point (10,3)
Answer: A line is perpendicular to another line if the slope of the first line is the negative reciprocal of the second line. The equation of the line y = -5x-1 has a slope of -5. The negative reciprocal of -5 is 1/5.
A line passing through a point (x1, y1) has an equation in slope-intercept form of y = m(x-x1) + y1, where m is the slope of the line.
So, we can use the point (10,3) and the slope of the line which is 1/5 to write the equation of the line:
y = 1/5(x-10) + 3
Therefore, the equation of the line perpendicular to y = -5x-1 and passing through the point (10,3) is y = 1/5x + 1/5
Step-by-step explanation:
Graph the line that has a slope of 1/6 and includes the point (0,2)
Answer:
y=1/6x+2 is the slope formula.
The equation of a line passing through the point (0,2) and having slope 1/6 is: x-6y+12=0
Step-by-step explanation:
Equation of a line passing through a point (x1,y1) and having slope m is: [tex]y-y_{1} =m(x-x_{1} )[/tex]
where m= slope of the line
Given point (x1 , y1)= (0 , 2)
So, the Equation of a line: [tex]=y-y_{1} =m(x-x_{1} )[/tex]
[tex]y-2 =(\frac{1}{6} )(x-0 )[/tex]
[tex]y-2 =(\frac{1}{6} )(x)[/tex]
[tex]6*(y-2) =(x)[/tex]
[tex]6y-12=x[/tex]
[tex]6y-12-x=0[/tex]
[tex]-x+6y-12=0[/tex] OR [tex]x-6y+12=0[/tex]
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how to round 456.173 to the nearest hundredth?
Answer:
456.17
Step-by-step explanation:
Rounding to the nearest hundredths' is asking is the number given 456.173 closer to 146.170 or 146.171. You can see that the number is closer to 146.170 which is the same number as 146.17
Rule
Look at the digit in the thousandths' place. In this case 3. If this number is 5 or greater round up, if this number is 4 or smaller round down. We will round down.
456.17
Answer:456.17
Step-by-step explanation:
If the thousandth place is 5-9, for example 456.178, the answer rounded to hundredth place will be 456.18.
But if the thousandth place is 1-4, the answer rounded to hundredth will be 456.17.
So the answer is 456.17.
Casey deposited $1,850 in a bank account that earned simple interest at an interest rate of 4%. How much interest, in dollars, was earned in 8 years?
Answer:
$1850×4÷100×8=$592 as interest
Julia is allowed to watch no more than 6 hours of television a week. So far this week, she has watched 2.5 hours. Write and solve an inequality to show how many hours of television Julia can still watch this week
Answer: We can write an inequality to show how many hours of television Julia can still watch this week by using the following information:
Julia is allowed to watch no more than 6 hours of television a week.
So far this week, she has watched 2.5 hours.
We can use the inequality x + 2.5 <= 6, where x is the number of hours Julia can still watch this week.
This inequality represents the total number of hours watched (x + 2.5) being less than or equal to the maximum number of hours allowed (6).
To solve this inequality, we can subtract 2.5 from both sides:
x <= 6 - 2.5
x <= 3.5
So, Julia can still watch 3.5 hours of television this week.
Step-by-step explanation:
Answer:
The remaining hours of TV Julia can watch this week can be expressed as
[tex]x \leq 3.5hours[/tex]
Step-by-step explanation:
since Julia is allowed not to watch not more than 6 hours of television a week and she has watched 2.5 hours already
the remaining time (X) would be expressed as
[tex]x \leq (6 - 2.5)[/tex]
[tex]x \leq 3.5[/tex]
A free bus service operates throughout the day around Brelney City Centre. The bus starts from the Railway Station, then stops successively at the Castle, the Shopping Centre, the Park and the Stadium, before returning to the Railway Station. The journey time for each section of the circuit is 5 minutes.
The first departure of the day from the Railway Station is at 09:15. Each time the bus arrives back at the Railway Station it waits for 10 minutes before setting off again.Bart will be the driver for the first 4 circuits tomorrow.At what time will Bart arrive back at the Railway Station for the final time tomorrow?
A 11:25
B 11:35
C 11:45
D 11:55
Answer:
The bus journey takes 25 minutes (5 minutes per stop x 5 stops). The bus leaves the Railway Station every 10 minutes (the wait time between circuits).
The first departure is at 09:15, so the bus will arrive back at the Railway Station at:
09:15 + 25 minutes = 09:40
Bart will drive the bus for 4 circuits, so the bus will arrive back at the Railway Station for the final time at:
09:40 + (4 x 25 minutes + 4 x 10 minutes) = 09:40 + 130 minutes =
11:50.
So the final arrival time will be D 11:55.
Answer:
Step-by-step explanation:
Each circuit takes 25 minutes (5 destinations times 5 minutes) plus the 10 minute wait at the Railway Station. So the entire circuit is 35 minutes with the wait. Bart drives 4 circuits - 4 times 35 minutes is 140 minutes.
140 minutes equals 2 hours and 20 minutes.
Add 2 hrs and 20 minutes to 9:15 and the sum = 11:35
The answer is B - 11:35
In the binomial expression of (1+x)
n
the first three terms are 1+3+4+---. Calculate
the numerical values of n and x, and the values of the fourth term of the expression.
Answer:
x = 1/3n = 9fourth term = 28/9Step-by-step explanation:
Given the first three terms of the expansion of (1 +x)^n are 1 +3 +4, you want the values of x and n, and the next term.
Binomial expansionThe first few terms of the binomial expansion of (1 +x)^n are ...
[tex](1+x)^n=1^n+n\cdot1^{n-1}x+\dfrac{n(n-1)}{2}1^{n-2}x^2+\dfrac{n(n-1)(n-2)}{2\cdot3}1^{n-2}x^3+\dots[/tex]
Comparing termsComparing the terms to those given, we have ...
[tex]nx=3\\\\(nx)((n-1)x)/2=4[/tex]
Expanding the second of these equations, and substituting the first, we get ...
[tex](nx)(nx -x)=8\qquad\text{multiply by 2}\\\\3(3-x)=8\qquad\text{substitute $nx=3$}\\\\9-8=3x\qquad\text{add $3x-8$}\\\\\boxed{x=\dfrac{1}{3}}\qquad\text{divide by 3}\\\\\dfrac{1}{3}n=3\qquad\text{substitute for $x$ in $nx=3$}\\\\\boxed{n=9}\qquad\text{multiply by 3}[/tex]
Fourth termThen the fourth term is ...
[tex]\dfrac{n(n-1)(n-2)}{6}x^3=\dfrac{9\cdot8\cdot7}{6}\cdot\left(\dfrac{1}{3}\right)^3=\boxed{\dfrac{28}{9}}[/tex]
__
Additional comment
Then the expansion is ...
(1 +1/3)^9 = 1 + 3 + 4 + 28/9 + 14/9 + 14/27 + ...
The n-th term is (11-n)/(3(n-1)) times the term before.
HELP MEEEEEE
10 Answer:
Evaluate the expression 7 + x + (-3) when x = 2:
11 Answer:
Evaluate the expression 4x2 + 2 when x = 2.
12 Answer:
Evaluate the expression |x + 10| when x = -12.
13 Answer:
Evaluate the expression |2x + 1| when x = 3/2.
14 Answer:
Evaluate the expression (x - 3)/4 when x = 4.
15 Answer:
Evaluate the expression (5 - x)/6 when x = 3.
The value of expression is ,
10) 6
11) 18
12) 2
13) 4
14) [tex]\frac{1}{4}[/tex]
15) [tex]\frac{1}{3}[/tex]
What is 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. Unknown variables, integers, and arithmetic operators are the components of an algebraic expression. There are no symbols for equality or inequality in it.
Here the given expression
10) 7+x+(-3)
Put x=2 then
=> 7+2-3
=> 7-1 = 6
11) 4[tex]x^2[/tex]+2
put x=2 then
=> [tex]4*2^2+2[/tex]
=> 4*4+2
=> 16+2=18
12) Ix+10I
put x=-12 then
=> I-12+10I
=> I-2I = 2
13) |2x + 1|
put x= 3/2 then
=> I2*[tex]\frac{3}{2}[/tex]+1I
=> I3+1I
=> I4I = 4
14)(x - 3)/4
put x=4 then
=> [tex]\frac{4-3}{4}[/tex]
=> [tex]\frac{1}{4}[/tex]
15) (5 - x)/6
put x=3 then
=> [tex]\frac{5-3}{6}[/tex]
=> [tex]\frac{2}{6}[/tex] = [tex]\frac{1}{3}[/tex]
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hey can anuyone please help with this question
answer is 25
use the formula to get the rest of the a's
Please look at the picture and answer the question thank you
Answer:
[ 5, ∞ )
Step-by-step explanation:
brackets on the ends of the interval indicate x can equal the value inside the bracket
parenthesis on the ends of the interval indicate x cannot equal the value inside the parenthesis.
x ≥ 5
expressed in interval notation as
[ 5, ∞ )
Find a unit vector in the direction opposite of ⟨−9,−2,−8⟩.
A unit vector u in the direction opposite of ⟨−9,−2,−8⟩ is ⟨-9/√(149) , -2/√(149) , -8/√(149) ⟩
What are vector equations ?
Vector equations allow for the creation of parametric curves. That is, points in space are formed for each value of the parameter by the equation of a vector, where each of its elements has a function with an independent variable that we refer to as a parameter.
Let unit vector u be = k⟨−9,−2,−8⟩.
√(81k^2 + 4k^2 + 64k^2) = 1
SO k = 1/√(149)
So a unit vector u in the direction opposite of v=⟨−9,−2,−8⟩ = (-9/√(149) , -2/√(149) , -8/√(149))
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One number is fourteen less than the other. If their sum is increased by seven, the result is 83. Find the numbers
Answer:
Let's call the two numbers x and y. We know that:
y = x + 14 (because one number is 14 more than the other)
x + y + 7 = 83 (because the sum of the two numbers plus 7 is 83)
We can substitute the first equation into the second equation:
x + (x + 14) + 7 = 83
Simplifying this equation:
x + x + 14 + 7 = 83
2x + 21 = 83
2x = 62
x = 31
So one number is 31 and the other number is 45 (since one is 14 more than the other).
Sum up the series 2/3+5/9+8/27+11/81+..... to n terms
Hope it helps.
If you have any query, feel free to ask.
Question 3
{(-1, 1), (1, 1), (-2, 4), (2,4)}
Is the relation a function and why?
Ayes each input has exactly one output
Byes each output has been repeated
C no the inputs are not repeated
D no the inputs cannot have the same output
The given relation {(-1, 1), (1, 1), (-2, 4), (2, 4)} is a function because: A. yes each input has exactly one output.
What is a function?In Mathematics, a function can be defined as a mathematical expression which is typically used for defining and representing the relationship that exists between two (2) or more variables such as an ordered pair.
This ultimately implies that, a function is typically used in mathematics for uniquely mapping an input variable (domain) to an output variable (range).
In this context, we can reasonably infer and logically deduce that given relation is a function because each input variable (domain) has exactly an output variable (range) as illustrated below;
x F(x)
-1 1
1 1
-2 2
2 4
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Thank you everybody in advance for your kind attention and cooperation!
Seats for Sale
State's football program has risen to the ranks of the elite with postseason bowl games in each of the past 10 years, including a national championship game. The Bruins (as the fans are called) fill the stadium each game. Season tickets are increasingly difficult to find. In response to the outstanding fan support, State has decided to use its bowl revenues to expand the stadium to 75,000 seats.
The administration is confident that all 75,000 seats can be sold at the normal price of $40 per game ticket; however, Frank Pinto's job, as athletic director, is to get as much revenue out of the stadium expansion as possible. In addition to stadium boxes for wealthy alums, Frank would like to take this opportunity to repurpose existing seats. A certain number of seats (yet to be determined) would be set aside for premium ticket holders who would pay $200 per ticket for the privilege of 50-yard line seats with chair backs and access to indoor concessions. The question is, how many fans would be willing to pay such a premium? If too many seats are designated in the premium sections, they could remain vacant. Too few premium seats would lose potential revenue for the program.
Frank has decided that if the plan has any chance of success, unsold premium seats should not be sold at reduced rates. It would be better to donate them to local charities instead. Gathering data from his cohorts at peer institutions, Frank has put together the following probability distribution of premium ticket holders. The data begin with 1000 tickets since Frank already has requests for 999 tickets from alumni donors. He is asking for your help in performing the analysis.
No. of Premium Tickets Probability
1,000 0.10
5,000 0.30
10,000 0.24
15,000 0.15
20,000 0.10
25,000 0.06
30,000 0.05
a. Using revenue management, determine how many seats should be reserved for premium ticket holders.
b. Considering your answer to part (a) and the possible outcomes listed above, how much total revenue (i.e., regular and premium) can be expected from ticket sales?
c. The administration is unsure about Frank's plan. The VP of finance thinks an expected value of the number of premium seats would produce better results. How would the number of premium seats change using expected value? Considering the possible outcomes, which approach yields the most potential revenue?
Answer:
b. Considering your answer to part (a) and the possible outcomes listed above, how much total revenue (i.e., regular and premium) can be expected from ticket sales?
Please help me out I need help
Answer:
DE = 9
Step-by-step explanation:
Given quadrilateral DEFG with DG≅EF, ∠FDG≅∠DFE, and markings EF=(6x+4), DG=(4x+8), and FG=(4x+1), you want the measure of DE.
ParallelogramThe given congruences mean that the figure DEFG is a parallelogram. Opposite sides are the same length.
EF = DG
6x +4 = 4x +8
2x = 4 . . . . . . . . subtract (4x+4)
x = 2 . . . . . . . . divide by 2
Now, we can find FG.
FG = 4x+1 = 4(2) +1 = 9
Opposite side DE is the same length:
DE = 9
__
Additional comment
You can prove ΔEFD ≅ ΔGDF using SAS. Then CPCTC tells you corresponding parts of the triangles are congruent: DE≅FG.
An observer in a lighthouse 350 feet above sea level observes two ships directly offshore. The angles of depression to the ships are β = 6° and θ = 10.5° (see figure). How far apart are the ships? (Round your answer to one decimal place.) ft
Answer:
28.1 ft
Step-by-step explanation:
d = 350 * ( tan 10.5 - tan 6) = 28.1 ft
Each survey respondent is asked to rate a specified supermarket based on a variety of factors such
as quality of products, selection, value, checkout efficiency, service, and store layout. An overall satisfaction score summarizes the
rating for each respondent with 100 meaning the respondent is completely satisfied in terms of all factors. Sample data
representative of independent samples of Publix and Trader Joe's customers are shown below.
Publix
N₁= 250
X bar 1= 86
Trader Joe's
N₂ = 300
X bar ₂ = 85
p-value= (to 3 decimals)
There is no difference between the population mean customer satisfaction scores for the two retailers, according to p-value: 0.33049.
what is random sample ?chosen at random (purely random, unpredictable). Every person in the demographic being surveyed should have an equal chance of being chosen. She gave an example of a simple representative sample, choosing 25 names at random from a group of 250 employees. The sampling in this case is random since there are 250 of her coworkers in total, and every one has an equal chance of being picked. Researchers select people at random from a population using simple random sampling, which is a type of probability sampling. Every member of the population is given an equal chance at selection.
Given that,
mean(x)=86
standard deviation , σ1 =12
number(n1)=250
y(mean)=85
standard deviation, σ2 =12
number(n2)=300
null, u1 = u2
alternate, H1: μ1 != u2
level of significance, alpha = 0.05
we got |zo | =0.973 & | z alpha | =1.96
(b) test statistic: 0.97
There is no difference between the population mean customer satisfaction scores for the two retailers, according to p-value: 0.33049.
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When making homemade ice cream in a hand-cranked freezer, the tub containing the ice cream mix is surrounded by a brine (water/salt) solution. To freeze the ice cream mix rapidly so that smooth and creamy ice cream results, the brine solution should combine crushed ice and rock salt in a ratio of 5 to 1. A small ice cream freezer requires cups of crushed ice. How much rock salt should be mixed with the ice to create the necessary brine solution?
If the ratio of crushed ice to rock salt is 5 to 1, for every 5 cups of crushed ice, 1 cup of rock salt is needed.
To find out how much rock salt is needed for the small ice cream freezer, you can use this formula:
Rock Salt = (Crushed Ice / 5) * 1
If the small ice cream freezer requires cups of crushed ice, then:
Rock Salt = (5 cups / 5) * 1 cup
Rock Salt = 1 cup
So, you will need 1 cup of rock salt to mix with the 5 cups of crushed ice to create the necessary brine solution.