Answer:
a) 10:30 a.m.
b) 75 km/h
Step-by-step explanation:
You want to know the leaving time and speed of a car from Woodlands to Muar if it left half an hour later and arrived half an hour earlier than a coach that traveled the 150 km distance at a speed of 50 km/h and arrived at 1 p.m..
Travel timeThe travel time of the coach is found from the relation ...
time = distance/speed
time = (150 km)/(50 km/h) = (150/50) h = 3 h
Then the coach left Woodlands at ...
1 pm -3 h = 10 am
a) Leaving timeThe car left half an hour later than the coach, so left at 10:30 a.m..
b) SpeedThe car arrived at Muar at 12:30 p.m. so had a travel time of ...
12:30 -10:30 = 2 h
The speed over the 150 km distance is given by ...
speed = distance/time
speed = (150 km)/(2 h) = (150/2) km/h = 75 km/h
The average speed of the car was 75 km/h.
__
Additional comment
The car passed the coach at 11:30 a.m., when both had covered half the distance.
find the difference of (-10x^2 + 5x -3) and (4x^2 + 6x - 7)
Answer:
-14x² - x + 4
Step-by-step explanation:
(-10x² + 5x - 3) - (4x² + 6x - 7)
= (-10x² + 5x - 3) - (+4x²) - (+6x) - (-7)
= (-10x² + 5x - 3) -4x² -6x +7
= -10x²-4x² +5x-6x -3+7
= -14x² - x + 4
write the digit on the blank which occupies the place value
Answer:
guganitckihkgucifufu
Julie multiplies 6.27 by 7 and claims the product is 438.9. Explain without multiplying how you know Julie’s answer is not correct. Find the correct answer.
Answer:
SHe put the decimal point in the wrong spot, it's suppose to be 43.89
Step-by-step explanation:
Answer:
no because 438.9 divided by seven is 62.7
Step-by-step ex
I posted this again with more points I'll mark the first right answer with brainliest please help no explanation required
?Step-by-step explanation:
A contractor better job at $750 for materials plus $43 per hour for labor. The total cost for the job can be modeled by C= 43H+ 750$.
Find the number of hours that he has for the job if the owner would like the total cost to be under $2000, rounded to the nearest hour.
The contractor has a maximum of 29 hours (rounded down) to complete the job while keeping the total cost under $2000.
To find the number of hours the contractor has for the job while keeping the total cost under $2000, we can use the given cost model equation: C = 43H + 750.
Since the owner wants the total cost to be under $2000, we can set up the inequality:
43H + 750 < 2000
Now, let's solve this inequality for H, the number of hours:
43H < 2000 - 750
43H < 1250
Dividing both sides of the inequality by 43:
H < 1250/43
To determine the maximum number of hours the contractor has for the job, we need to round down the result to the nearest whole number since the contractor cannot work a fraction of an hour.
Using a calculator, we find that 1250 divided by 43 is approximately 29.07. Rounding down to the nearest whole number, we get:
H < 29
Using the cost model equation C = 43H + 750, where C represents the total cost and H represents the number of hours, we set up the inequality 43H + 750 < 2000 to satisfy the owner's requirement of a total cost under $2000.
By solving the inequality and rounding down to the nearest whole number, we find that the contractor has a maximum of 29 hours to complete the job within the specified cost limit.
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64 players started how many left after 3 rounds
Answer: 8
Step-by-step explanation:
I do not understand the question. But if my interpretation is correct, then:
If there are 64 players and 3 rounds, 32 will get out in the first round. 16 will get out in the second, and 8 will get out on the third. Thus, the answer is 64-(32+16+8) or just simply 8.
-10 (v-2) - 10 = 14 -6v
Answer:
v=-1
Step-by-step explanation:
−10(v−2)−10=14−6v
−10(v−2)−10=14−6v
(−10)(v)+(−10)(−2)+−10=14+−6v
−10v+20+−10=14+−6v
(−10v)+(20+−10)=−6v+14
−10v+10=−6v+14
−10v+10=−6v+14
−10v+10+6v=−6v+14+6v
−4v+10=14
−4v+10−10=14−10
−4v=4
-4v/-4=4/-4
v=-1
Answer:
x=-1
Step-by-step explanation:
Mr. Evans is currently 4 times as old as his son, Dan. If Mr. Evans was 46 years old 2 years ago, how old is Dan now?
Answer:
the son age is 13band Evans age is 52 years old at present day
Dan is 12 years old.
What is Algebra?A branch of mathematics known as algebra deals with symbols and the mathematical operations performed on them.
Variables are the name given to these symbols because they lack set values.
In order to determine the values, these symbols are also subjected to various addition, subtraction, multiplication, and division arithmetic operations.
Given:
let the Age of Dan is x years
Mr. Evans Age = 4x
If Mr. Evans was 46 years old 2 years ago
The, Present age of Mr. Evans = 48 years
So, Dan's Age = 48/4
= 12 years.
Hence, Dan is 12 years old.
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how did I write: x minus one-half is one fourth
In numbers aka algebraic equation
Point Ais at (-3, 4) and point C is at (2,-6). Find the coordinates of point Bon AC such that the ratio of AB to dC is 4:5. B = (
If point B lies on the line joining points A (-3, 4) and C (2, -6) in such a manner that, the ratio of AB to BC is (4 : 5), then the coordinates of point B are [(7/9), (-4/9)].
As per the question statement, two points, A (-3, 4) and C (2, -6) are joined by a straight line AC, and point B lies on the line in such a manner that, the ratio of AB to BC is (4 : 5).
We are required to calculate the coordinates of point B.
To solve this question, we need to know the formula to calculate the coordinates of a point B (x₃, y₃) that lies on the line joining two other points A (x₁, y₁) and C (x₂, y₂) in such a manner that, the ratio of AB to BC is (m : n), which goes as,
[x₃ = {(mx₂ + nx₁)/(m + n)}] and [y₃ = {(my₂ + ny₁)/(m + n)}]
Here, comparing with the data provided in the question statement, we get, A [(x₁, y₁) = (-3, 4)], C [(x₂, y₂) = (2, -6)] and [(m : n) = (4 : 5)], and using these values in the above mentioned formula, we further get,
x₃ = [(4 * 2) + {5 * (-3)}]/(4 + 5) and y₃ = [{4 * (-6)} + (5 * 4)/(4 + 5)]
Or, [x₃ = {8 + (-15)}/9] and [y₃ = {(-24) + 20}/9]
Or, [x₃ = {(15 - 8)/9}] and [y₃ = {(20 - 24)/9}]
Or, [x₃ = (7/9)] and [y₃ = (-4/9)]
Therefore, the coordinates of point B are [(7/9), (-4/9)].
Ratio: In Mathematics, Ratio is a term that is used to compare two or more numbers, typically used to indicate how big or small a quantity is when compared to another.To learn more about Ratios and Straight Lines, click on the link below.
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Create a table of values for the function graphed below using the plotted points. Remember, table of values are written with the x
-values in order from least to greatest (read the graph from left to right).
there are 5 rows for both problems x,y and 45 points for helping me with this
The table of values of the graphs are
x -2 -1 0 1 2
y -8 -6 -4 -2 0
and
x -7 -2 2 3 4
y 1 -8 3 5 -5
Writing the table of values of the graphs.from the question, we have the following parameters that can be used in our computation:
The graph
A linear equation is represented as
y = mx + c
Where
c = y when x = 0
So, we have
y = mx - 4
Using the points, we have
2m - 4 = 0
This gives
2m = 4
So, we have
m = 2
This means that the equation is y = 2x - 4
So, we have the following table of values
x -2 -1 0 1 2
y -8 -6 -4 -2 0
For the second table, we have
x -7 -2 2 3 4
y 1 -8 3 5 -5
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Match the system of linear equations on the left with its solution type on the right
1. Y=2x-1
Y=2x+1
2. Y-4x=-2
Solution for the given System of linear equation is:
Infinite number of solution(2, -3)(-2, 4)Infinite number of solutionWhat are System of equation?Simultaneous equations, system of equations Two or more equations in algebra must be solved jointly (i.e., the solution must satisfy all the equations in the system). The number of equations must match the number of unknowns for a system to have a singular solution.
There are four methods to solving systems of equations: graphing, substitution, elimination and matrices.
Given, the system of linear equations on the left with its solution type on the right
For Y=2x-1 and Y=2x+1
Adding both equation, we will get y = 4x
Thus, these equations have infinite number of solution
For 2x - y = 7 and 3x + y = 3
Adding these equations
5x = 10
x= 2
Substitute the value in equation 1
y = -3
Thus, solution is (2, - 3)
therefore, the Solution for the given System of linear equation is:
Infinite number of solution(2, -3)(-2, 4)Infinite number of solutionLearn more about System of equation here:
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Complete question:
You spent 25% of your monthly wages on rent. If you earned $75,350 last year,
how much did you spend on rent each month?
Help asap! Am=6 MB=4 AN=8
Answer:
AC = 13.3
Make proportional relationship:
\(\dfrac{\text{AB}}{\text{AC}} =\dfrac{\text{AM}}{\text{AN}}\)
Insert values
\(\rightarrow\dfrac{10}{\text{AC}} =\dfrac{6}{8}\)
Cross multiply
\(\rightarrow \text{AC}=\dfrac{10(8)}{6}\)
Simplify
\(\rightarrow \text{AC}=13.3\)
i need help on this question for my math homework:))) please help!
What is the most simplified expression for 4 c squared d + 3 d c minus 2 (d c squared + c d) + 6 c squared d squared?
Answer:
\( \boxed{ \bold{ {\boxed{ \sf{6 {c}^{2} {d}^{2} + 2 {c}^{2} d + cd}}}}}\)
Step-by-step explanation:
\( \sf{4 {c}^{2} d + 3dc - 2(d {c}^{2} + cd) + 6 {c}^{2} {d}^{2} }\)
Distribute 2 through the parentheses
\( \dashrightarrow{ \sf{4 {c}^{2} d + 3dc - 2d {c}^{2} - 2cd + 6 {c}^{2} {d}^{2} }}\)
Collect like terms
\( \dashrightarrow{ \sf{6 {c}^{2} {d}^{2} + 4 {c}^{2} d - 2d {c}^{2} + 3dc - 2cd}}\)
\( \dashrightarrow{ \sf{6 {c}^{2} {d}^{2} + 2 {c}^{2}d + cd }}\)
Hope I helped !
Best regards! :D
the answer is a on engenuity
Find two square numbers that total 45
Which power does NOT have a value of 64?
A. 2 ˄6
B. 8 ˄2
C. 4 ˄3
D. 32 ˄2
Janet wants to purchase a new car. At the car dealership, a salesperson tells her she can choose from 10 car models, 7 exterior
colors, and 9 interior colors.
How many ways can Janet customize a car? Enter your answer as a whole number, like this: 425
evious
Janet has 630 options to customize a car based on the given features.
How to solve the question?
To determine the number of ways Janet can customize a car, we need to multiply the number of choices she has for each feature. Therefore, the total number of ways Janet can customize a car can be calculated as:
10 car models x 7 exterior colors x 9 interior colors = 630
Thus, Janet has 630 options to customize a car based on the given features.
It's worth noting that this calculation assumes that each feature (car model, exterior color, and interior color) can be combined with any other feature, without any restrictions or dependencies. However, in reality, certain car models may not be available in certain exterior or interior colors, or there may be other restrictions on the customization options.
Additionally, there may be other features that Janet can customize, such as the type of engine, transmission, or other options. Therefore, the total number of customization options may be even greater than what we have calculated here.
In summary, based on the given information, Janet has 630 ways to customize a car, but in reality, the actual number of options may be more limited or varied depending on other factors.
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If you know the answer I will give a hundred brainist
Answer:
18.09
Step-by-step explanation:2.4x2.4, then x3.14
Answer:
answers below
Step-by-step explanation:
If you are trying to find the area the answers are:
Earth= 289.52918
Saturn=6,532.5021
The formula for area for a sphere is:
4 x pie x r2
If you are trying to find the volume the answers are:
Earth=57.90584
Saturn=46,647.01596
The formula for volume for a sphere is:
4/3 x pie x r3
Also the radius (r) is half of the diameter, so you divide the diameter by 2.
Use Cramer's rule to solve for x
x + 4y - z=-14
5x + 6y + 3z = 4
-2x + 7y + 2z = -17
Answer:
( 2, 3, 4 )
Step-by-step explanation:
Answer:
The answers are below...
IAI = 1 4 -1 IAxI= -14 4 -1
5 6 3 4 6 3
-2 7 2 -17 7 2
IAI = B -120
IAxI = A -240
X = 2
Please help asap!!!!!!!
Answer:Yes indeed!
Step-by-step explanation:
Your right!
Find the equation of a line perpendicular to y=5x-3 and which passes through (-3,4)
Answer: Hope this helps :)
Step-by-step explanation:
The slope of the given line y = 5x - 3 is 5. The slope of a line perpendicular to it would be the negative reciprocal of 5, which is -1/5. Using the point-slope form of a line, we can find the equation of the line perpendicular to y = 5x - 3 that passes through the point (-3,4) as follows: y - y1 = m(x - x1), where (x1,y1) is the point (-3,4) and m is the slope -1/5. Substituting these values into the equation gives us: y - 4 = (-1/5)(x + 3). Simplifying this equation gives us: y = (-1/5)x - 3/5 + 4, or y = (-1/5)x + 17/5.
Answer:
To find the equation of a line perpendicular to y=5x-3 and which passes through (-3,4), we first need to find the slope of the line y=5x-3. The slope of this line is 5.
Since we want to find the equation of a line that is perpendicular to y=5x-3, we know that the slope of this new line will be the negative reciprocal of 5. The negative reciprocal of 5 is -1/5.
Now that we know the slope of the new line, we can use the point-slope form of a line to find its equation. The point-slope form of a line is y-y1=m(x-x1), where m is the slope of the line and (x1,y1) is a point on the line.
Using the point (-3,4) and the slope -1/5, we get:
y-4=-1/5(x-(-3)
y-4=-1/5(x+3)
y-4=-1/5x-3/5
y=-1/5x+23/5
Therefore, the equation of a line perpendicular to y=5x-3 and which passes through (-3,4) is y=-1/5x+23/5.
What is the constant in this. Expression 8Y + 2
Answer:
2
Step-by-step explanation:
coefficient: the number multipliing the variable
variable: the letter
constant: the number
Answer:
2
Step-by-step explanation:
8 would be the coefficient
Y would be the variable
Making 2 the constant
What is the decimal multiplier to decrease by 39%
Answer:
100%-39%=61% which is 0.61
Step-by-step explanation:
10 points for correct answer and giving brainliest
when i add my number it is 27 and when I multiply my number 50. what is it?
Answer:
2 and 25
Step-by-step explanation:
hope this helps :)
The set of all numbers greater than 2
4. Amy, Betty and Carol have 96 books altogether. Betty has 6 books less than Amy and Carol has half as many as Betty. How many books does each girl have?
The Amy has 42 books, Betty has 36 books, and Carol has 18 books.
Let's set up equations to represent the given information:
Let A represent the number of books Amy has.
Let B represent the number of books Betty has.
Let C represent the number of books Carol has.
Let's say Amy has x books.
Betty has 6 books less than Amy, so Betty has (x - 6) books.
Carol has half as many books as Betty, so Carol has (x - 6)/2 books.
According to the problem, the total number of books they have is 96.
So, we can write the equation:
x + (x - 6) + (x - 6)/2 = 96
To solve the equation, we can simplify it by multiplying through by 2 to remove the fraction:
2x + 2(x - 6) + (x - 6) = 192
2x + 2x - 12 + x - 6 = 192
5x - 18 = 192
5x = 210
x = 42
Amy has 42 books.
Betty has (42 - 6) = 36 books.
Carol has (36)/2 = 18 books.
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In a competition, the contestants are being judged on creativity, worth 50%, execution, worth 30%, and style, worth 20%
Alisha received the following scores.
Creativity: 18, 16, 15, 16
Execution: 20, 19, 20, 18
Style: 12, 15, 14, 13
What is Alisha's final score?
Enter your answer, as a decimal, in the box