Using hour and minutes conversion, Pam spent 7380 seconds on the puzzle.
What is the formula for converting hours to minutes?We can convert an hour into minutes by multiplying it by 60 since an hour is made up of 60 minutes. Therefore, if one wants to translate three hours into minutes, they can do it by multiplying three by sixty, which gives them three times sixty or 180 minutes.
On Saturday, Pam spent 1 hour and 15 minutes working on a puzzle.
On Sunday, she spent 48 minutes on the puzzle.
1 hour = 60 minutes
1 minute = 60 second
1 hour = 60 × 60 seconds
1 hour and 15 minutes = 60 × 60 seconds + 15 × 60 seconds
⇒ 3600 + 900 seconds
⇒ 4500 seconds
48 minutes = 48 × 60 = 2880 seconds
Total seconds spent = 4500 + 2800 = 7380 seconds
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you
cou
Recommendations
Florida's B.E.S.T. Standards: Grade 8 > GG.5 Make predictions 38C
thro
Skill plans
pieces of vanilla cake
You have prizes to reveall Go to
Passersby have taken 4 pieces of vanilla cake and 6 pieces of coconut cake from a
sample tray. Based on past data, of the next 30 samples taken, how many should you expect
to be pieces of vanilla cake?
Vid
Out of the following 30 samples, you may expect that about 12 will be portions of vanilla cake.
How to determine probability?To solve this problem, use the concept of probability and make a prediction based on the past data.
In this case, out of the 10 pieces of cake that have been taken, 4 are vanilla and 6 are coconut.
Therefore, the probability of selecting a piece of vanilla cake from the tray is 4/10, or 2/5.
To predict how many of the next 30 samples will be pieces of vanilla cake, multiply the probability of selecting a vanilla cake by the total number of samples:
(2/5) x 30 = 12
So expect that out of the next 30 samples taken, approximately 12 of them will be pieces of vanilla cake.
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Question 2 (Multiple Choice Worth 1 points)
(06.02 MC)
Simplify (3a³b-4ab² + 5ab) - (4a³b + 4ab² + 5ab).
O-a³b-8ab2 + 10ab
O-a³b-8ab²
07a³b-8ab² + 10ab
The simplified expression of (3a³b-4ab² + 5ab) - (4a³b + 4ab² + 5ab) is (b) -a³b - 8ab²
How to simplify the expressionFrom the question, we have the following parameters that can be used in our computation:
(3a³b-4ab² + 5ab) - (4a³b + 4ab² + 5ab)
Open the bracket
So, we have
(3a³b-4ab² + 5ab) - (4a³b + 4ab² + 5ab) = 3a³b - 4ab² + 5ab -4a³b - 4ab² - 5ab
Evaluate the like terms
So, we have
(3a³b-4ab² + 5ab) - (4a³b + 4ab² + 5ab) = -a³b - 8ab²
Hence, the simplified expression is (b) -a³b - 8ab²
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Brendon finished an obstacle course in 22.5 minutes. Tobias finished the course 85 seconds after Brendon. How long did it take Tobias to finish?
Answer:
23.35 minutes
Step-by-step explanation:
Brendan finished in 22.5 minutes. Tobias finished 85 seconds after. Just add 85 seconds to 22.5 minutes. There are 100 second in 1 minute. Since Brendan is already at 22.5, there is only 0.5 left to get to 23. 0.5 in this case means 50 seconds. You do 85 - 50 = 35. Now, you are at 23 minutes. Add 35 seconds to that to get to 23.25 minutes.
radius of 18 feet and a central angle of 52° is shown below. Which of the following is the closest to the length of the arc from point C to point D?
The closest length to the arc from point C to point D is 16.34 ft (option c).
To find the length of the arc from point C to point D, we need to calculate the circumference of the circle and then find the fraction of the circumference represented by the central angle.
The circumference of a circle can be calculated using the formula:
Circumference = 2 × π × radius
Given the radius of 18 feet, the circumference is:
Circumference = 2 × π × 18 = 36π feet
To find the length of the arc, we need to find the fraction of the circumference represented by the central angle of 52°. The fraction is calculated by dividing the central angle by 360° and then multiplying it by the circumference.
Length of the arc = (Central angle / 360°) * Circumference
Length of the arc = (52° / 360°) × 36π
Length of the arc = (13/90) × 36π
Length of the arc = 468π / 90
Length of the arc ≈ 16.41 ft
Among the given options, the closest length to the arc from point C to point D is 16.34 ft (option c).
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Given f(x) = x³ - 6x + k, and the remainder when f(x) is divided by x - 1 is 14, then what is the value of k?
Answer: 19
Step-by-step explanation: The best way is to set this up with synthetic division (as the attached image).
Hope this helps!
I have not gone to school in a month for family reasons and I have to submit 39 math assignments before Friday HELP
Diego is correct as the number of groups result to 6/5 or 1 1/5.
We have to find the number of groups of 5/6 in 1.
So, we need to perform the division as
= 1/ (5/6)
= 1 x 6/5
= 6/5
= 1 1/5
Thus, Diego is correct as the number of groups result to 6/5 or 1 1/5.
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50 Points! Multiple choice geometry question. Photo attached. Thank you!
Answer:
4x = 100, so x = 25
The correct answer is C.
10. Kipp constructed a pentagonal pyramid for his social studies report. The base had an area of 12 cm². It took 48 cubic centimeters of clay to make his model. Find the height of the pyramid.
We can use the formula for the volume of a pentagonal pyramid to solve this problem:
Volume = (1/3) × Base Area × Height
We know that the base area is 12 cm² and the volume is 48 cubic centimeters. We can substitute these values into the formula and solve for the height:
48 = (1/3) × 12 × Height
Multiplying both sides by 3 gives:
144 = 12 × Height
Dividing both sides by 12 gives:
Height = 12
Therefore, the height of the pentagonal pyramid is 12 centimeters.
What is an equation of the line that passes through the point
(
8
,
7
)
(8,−7) and is parallel to the line
x+2y=18?
Britney is a volunteer at the Westside Library. She collects the books that come down the
chute from the outside drop-off and puts them on the library shelves. Of the books that have
come down the chute so far today, 41 have been fiction and 23 have been nonfiction.
Based on the data, estimate how many of the next 100 books that come down the chute will
be nonfiction.
Based on the given data, we can estimate that approximately 36 out of the next 100 books that come down the chute will be nonfiction.
To estimate the number of nonfiction books out of the next 100, we can use the ratio of nonfiction to the total number of books that came down the chute so far today.
The total number of books that came down the chute so far is:
41 (fiction) + 23 (nonfiction) = 64
The ratio of nonfiction books to the total number of books in library is:
[tex]23/64[/tex]
To estimate the number of nonfiction books out of the next 100, we can multiply the ratio by 100:
[tex](23/64)*100=35.9375[/tex]
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Simplify (3xy³ + 8x²y - 3xy) + (7xy³ - 9x²y + 6xy).
O4xy³ - x²y - 3xy
O4xy³ - x²y + 3xy
O 10xy³ + x²y - 3xy
O 10xy³x²y + 3xy
Answer: 10xy³ - x²y + 3xy
Step-by-step explanation:
To simplify the expression (3xy³ + 8x²y - 3xy) + (7xy³ - 9x²y + 6xy), we can combine like terms.
Adding the corresponding terms together, we have:
3xy³ + 7xy³ = 10xy³
8x²y - 9x²y = -x²y
-3xy + 6xy = 3xy
Combining these terms, the simplified expression becomes:
10xy³ - x²y + 3xy
Therefore, the correct option is:
O 10xy³ - x²y + 3xy
Find the volume of a rectangular prism with a length of 12 inches a width of 4.5 inches and a height of 3.6 inches
Answer:
194.4
Step-by-step explanation:
V=l*w*h
V=12*4.5*3.6
V=194.4
Which animal swims at a top speed of about 0.33 mile per minute? Explain how you found your answer
The animal that swims at a top speed of 0. 33 miles per minute would be the Dolphin .
How to find the animal ?To find the animal that swims at a top speed of 0. 33 miles per minute, you need to convert their top speeds in miles per hour to miles per minute.
For every 1 mile per hour, the equivalent in minutes is 0.0166667 miles per minute.
Speed of Swordfish is:
= 60 mph x 0.0166667
= 1 mile per minute
Speed of Tuna :
= 45 mph x 0.0166667
= 0. 75 miles per minute
Dolphin :
= 20 mph x 0.0166667
= 0. 33 miles a minute
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Can someone answer this question
The options 2nd and 3rd are the monomials with degree 2.
Given are the expressions we need to find the monomials with degree 2.
So,
The general form of a monomial with degree 2 is:
ax²
The highest exponent of a polynomial's variable(s) in any of its terms is referred to as the polynomial's degree in mathematics.
It controls the polynomial's behavior and complexity.
A non-negative integer is used to represent the degree.
And,
A monomial is a mathematical expression consisting of a single term. It is composed of a coefficient multiplied by one or more variables raised to non-negative integer exponents.
Here, the monomials can be 2x² and x²
Hence the options 2nd and 3rd are the monomials with degree 2.
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D. 17 °F 2. Franky earns $(100+ x) daily for five days, $(175 + 2x) for two days, and $(75 + 2x) for three days. If the average amount she earns is $80 per day, what is the median amount she earned?
The median total of amount Franky earned is A = $81.67 per day.
Given data ,
For the first five days: $(100 + x) per day
For the next two days: $(175 + 2x) per day
For the final three days: $(75 + 2x) per day
Now , the average amount she earns is $80 per day
So , Average earnings = Total earnings / Total number of days
Average earnings = [(100 + x) * 5 + (175 + 2x) * 2 + (75 + 2x) * 3] / 10
Simplifying the equation:
80 = [500 + 5x + 350 + 4x + 225 + 6x] / 10
Multiplying both sides by 10:
800 = 1075 + 15x
Subtracting 1075 from both sides:
15x = -275
Dividing both sides by 15:
x = -18.33
For the first five days: $(100 - 18.33) = $81.67 per day
For the next two days: $(175 + 2*(-18.33)) = $138.34 per day
For the final three days: $(75 + 2*(-18.33)) = $38.34 per day
Arranging the earnings in ascending order: $38.34, $38.34, $38.34, $81.67, $81.67, $81.67, $81.67, $138.34, $138.34
The median is the middle value when the earnings are arranged in ascending order. In this case, the middle value is $81.67
Hence , the median is $81.67
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Reacting with water in an acidic solution at a particular temperature, compound A decomposes into compounds B and C according to the law of uninhibited decay. An initial amount of 0.40 M of compound A decomposes to 0.37 M in 30 minutes. How much of compound A will remain after 2 hours? How long will it take until 0.10 M of compound A remains? After 2 hours, the amount of compound A remaining will be ? M. (Do not round until the final answer. Then round to thenearest hundredth as needed.)
The answers to all parts are shown below.
The law of uninhibited decay is a first-order chemical reaction, which means that the rate of the reaction is proportional to the concentration of compound A.
The rate law can be written as:
rate = k[A]
where k is the rate constant and [A] is the concentration of compound A.
From the given data, we can use the following equation to determine the rate constant:
ln([A]t/[A]0) = -kt
where [A]t is the concentration of compound A at time t, [A]0 is the initial concentration of compound A, k is the rate constant, and t is the time.
Using the given data:
[A]t = 0.37 M
[A]0 = 0.40 M
t = 30 minutes = 0.5 hours
ln(0.37/0.40) = -k(0.5)
k = 0.0486 h⁻¹
(a) How much of compound A will remain after 2 hours?
Using the same equation and substituting the known values:
ln([A]t/[A]0) = -kt
ln([A]t/0.40) = -0.0486 x 2
[A]t/0.40 = e⁻(⁹⁷² /¹⁰⁰⁰⁰)
[A]t = 0.25 M
Therefore, after 2 hours, 0.25 M of compound A will remain.
(b) How long will it take until 0.10 M of compound A remains?
Substituting the known values into the equation again:
ln([A]t/[A]0) = -kt
ln(0.10/0.40) = -0.0486t
t = 4.26 hours
Therefore, it will take approximately 4.26 hours until 0.10 M of compound A remains.
(c) After 2 hours, the amount of compound A remaining will be 0.25 M.
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A shirt manufacturer pays a worker $0.47 for each acceptable shirt inspected under the prescribed job description. If the worker had the following work record, find the gross earnings for the week: Monday, 250 shirts; Tuesday, 300 shirts; Wednesday, 178 shirts; Thursday, 326 shirts; Friday, 296 shirts
5. In AABC, ZA = 70°, ZB = 50°, and a = 15 cm. Solve ▲ABC.
In triangle ABC, side BC (a) is 15 cm, side AC (b) is 13.30 cm, and side AB (c) is 12.23 cm. Also angle A is 70°, B is 50°, and C is 60°
Understanding the Angles and Sides of TriangleUsing the Law of Sines and the fact that the sum of the angles in a triangle is 180 degrees.
The Law of Sines states that the ratio of the length of a side of a triangle to the sine of its opposite angle is constant. Using this, we can find the lengths of the other sides of triangle ABC.
Let's denote side AB as c, BC as a, side AC as b, and angle C as ∠C.
Using the Law of Sines, we have:
sin(∠A) / a = sin(∠B) / b
Substitute in the known values, we get:
sin(70°) / 15 = sin(50°) / b
Make b the subject of the formula:
b = (15 * sin(50°)) / sin(70°)
Using a calculator, we can find the value of b:
b = (15 * 0.766) / 0.9397
= 12.23 cm
Therefore side AC = b = 12.23 cm
Now, to find side AB (c), we can use the Law of Sines again:
sin(∠B) / b = sin(∠C) / c
But ∠C is unknown. To find ∠C, we apply the sum of angle in a triangle rule
∠A + ∠B + ∠C = 180
70 + 50 + ∠C = 180
∠C = 180 - 70 - 50
∠C = 60°
Substitute the values in the Sine rule equation
sin(50°) / 12.233 = sin(60) / c
Make c the subject of the formula
c = (12.233 * sin(60)) / sin(50°)
c = (12.233 * sin(60°)) / sin(50°)
= 13.30 cm
Therefore, the lengths of the sides of triangle ABC are:
Side AB = c = 12.23 cm
Side BC = a = 15 cm
Side AC = b = 13.30 cm
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Find the surface area of the prism. Round to the nearest tenth if necessary.
Regular pentagon base
B≈61.94 cm2
Base length=6cm
Lateral edge=5cm
A regular pentagonal prism is shown. The length of the side of the pentagon is six centimeters. The height of the prism is five centimeters.
The surface area of the prism is 248.88 cm²
What is surface area of prism?The area occupied by a three-dimensional object by its outer surface is called the surface area.
The surface area of a prism is expressed as;
SA = 2B + ph
where h is the height of the prism, B is the base area of the prism and P is the perimeter of the base.
Base area = 61.94 cm²
height = 5cm
perimeter = 5 × 5 = 25cm
SA = 2 × 61.94 + 25 × 5
SA = 123.88+ 125
SA = 248.88 cm²
Therefore the surface area of the prism is 258.88 cm²
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The perimeter of a right triangle is equal to 4x + 3. If two sides of the triangle measure: x + 7 and x – 7, what is the measurement of the hypotenuse?
If two sides of the triangle measure: x + 7 and x – 7, the measurement of the hypotenuse is 2x + 3.
In a right triangle, the hypotenuse is the side opposite the right angle and it is the longest side. We can use the Pythagorean theorem to relate the sides of the right triangle:
a² + b² = c²
where a and b are the lengths of the legs of the triangle and c is the length of the hypotenuse.
We are given that the perimeter of the triangle is 4x + 3. The perimeter of a triangle is the sum of the lengths of its sides, so we can write:
a + b + c = 4x + 3
Substituting the given side lengths, we get:
(x + 7) + (x - 7) + c = 4x + 3
Simplifying, we get:
2x + c = 4x + 3 - 7 + 7
2x + c = 4x + 3
Solving for c, we get:
c = 2x + 3
We did not need to use the Pythagorean theorem in this problem, as we were only asked for the measurement of the hypotenuse in terms of x.
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The EPA fuel economy estimates for automobiles models tested recently found them to be
normally distributed with a mean of 24.8 mpg and a standard deviation of 6.2 mpg. What is
the percentile rank of an automobile that has a fuel economy of 35 mpg?
90th Percentile
O 5th Percentile
O 95th Percentile
10th Percentile
Step-by-step explanation:
(35-24.8) / 6.2 = z-score of + 1.645 corresponding to .9495 =
~ 95th percentile
?? geometry question
The measure of angle BGF from the given parallel lines is 108°.
Given that, measure of angle BGF=4x+28 and the measure of angle EHD = 2x+32.
1) From the given figure, angle BGF and angle EHC are interior alternate angles.
Angle FHC and angle EGA are corresponding angles.
Angle FHC and angle EGA are exterior alternate angles.
2) angle BGF+angle EHD=180°
3) 4x+28+2x+32=180°
6x+60=180
6x=120
x=20
Angle BGF=4x+28=108 °
Angle EHD = 2x+32
= 112°
Angle FHD=180-112=68°
Angle EGB=180-108=72°
Therefore, the measure of angle BGF from the given parallel lines is 108°.
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How many turning points are in the graph of the polynomial function?
4 turning points
5 turning points
6 turning points
7 turning points
you will get 10 points for each question and help
The probability is very high and the event is very likely to occur.
option B.
What is the explanation for the probability?Probability means possibility. It is a branch of mathematics that deals with the occurrence of a random event.
Probability can be defined as the ratio of the number of favorable outcomes to the total number of outcomes of an event.
If the probability of a rolling a number greater than 1 on a six sided cube die is 5/6, it implies that the chances of obtaining a number greater than 1 is very high.
We will convert 5/6 to percentage to see the actual value of 5/6.
5/6 x 100%
= 83.33 %
So the value of this probability is very high and the event is very likely to occur.
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Can anyone help me w tvis
The number of weeks that the puppies weigh the same amount will be A. 6 weeks.
The equation that has no solution is A. 13 - 7x = -7x + 13.
The option determined from the graph is B. The ordered pair (25, 6) is a solution to y = x + 40 and y = 3x + 15.
How to calculate the number of weeksPuppy A weighs 4 1/5 pounds at birth and gains 3/4 pound each week. Puppy B weighs 5 2/3pounds at birth and gains 1/2 pound each week.
After how many weeks will the puppies weigh the same amount will be calculated thus:
4 1/5 + 3/4x = 5 2/3 + 1/2x
4.2 + 0 75x = 5.67 + 0.5x
Collect the like terms
5.67 - 4.2 = 0.25x
Divide
x = 1.47 / 0.25
x = 6
Hence ,the number of weeks that the puppies weigh the same amount will be A. 6 weeks.
It should be noted that the equation that has no solution is A. 13 - 7x = -7x + 13. This is because the values gives 0 all through.
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Please help me with this statistics question. Photo attached
a) The data in the above table about the statistics class asked the city where they live are b) Quantitative and Discrete.
b) The completion of the frequency distribution for the data is as follows:
Class Frequency
Fort Pierce 7
Port St. Lucie 6
Vero Beach 7
Sebastian 4
Okeechobee 6
Total 30
c) The completion of relative frequency and percentage distribution for the data is as follows:
Class Frequency Relative Frequency Percentage
Fort Pierce 7 0.233 23.3%
Port St. Lucie 6 0.200 20.0%
Vero Beach 7 0.233 23.3%
Sebastian 4 0.133 13.3%
Okeechobee 6 0.200 20.0%
Total 30
How the relative frequencies and percentages are computed:Class Frequency Relative Frequency Percentage
Fort Pierce 7 0.233 (7/30) 23.33% (7/30 x100)
Port St. Lucie 6 0.200 (6/30) 20.00% (6/30 x100)
Vero Beach 7 0.233 (7/30) 23.33% (7/30 x100)
Sebastian 4 0.133 (4/30) 13.33% (4/30 x100)
Okeechobee 6 0.200 (6/30) 20.00% (6/30 x100)
Total 30
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Answer Options for a):a) Time-Series
b) Quantitative and Discrete
c) Cross-Sectional Qualitative
d) Quantitative and Continuous
From a point X, the bearing of a flag pole is 280⁰, from another point Y due south of X the bearing of the flag pole is 330⁰ . if the angle of elevation of the top of the flag pole from Y is 60⁰ and the distance (X,Y) is 92km . Calculate how far Y is from the flag pole
Answer: 37km
Step-by-step explanation:
Please help me answer this question ASAP!! It’s due tomorrow! Will mark as brainliest if explained very simply and correct.
Answer:
The answer is B:14
Step-by-step explanation:
When you simply multiply 5% by 14, you get 0.7. So you know that 5% of 14 is 7.
Geometry problem (possible drop down answers are ellipse rectangle and circle) please help! Will give crown to first to give correct answer.
Answer:
ellipses
a pair of parallel straight
Step-by-step explanation:
Brenda types 15 words per minute. How long will it take her to type 750 words?
It will take Brenda 50 minutes to type 750 words at a rate of 15 words per minute.
To solve this problem, we can use the formula:
time = amount of work / rate
In this case, the amount of work is typing 750 words, and the rate is 15 words per minute. Substituting these values into the formula, we get:
time = 750 / 15 = 50 minutes
This calculation assumes that Brenda types at a constant rate of 15 words per minute. If her typing speed varies, the time it takes her to type 750 words may be different.
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