what is 9 hrs - 55 min
Answers
9 hours - 55 minutes is equal to 8 hours and 5 minutes.
Describe Hours?Hours are units of time that are used to measure the duration of events or activities. One hour is equal to 60 minutes or 3,600 seconds. The concept of hours is based on the division of the day into 24 equal parts, with each part representing one hour.
Hours are commonly used in various contexts, including work schedules, school schedules, and timekeeping in general. For example, a typical workday might be eight hours long, while a school day might be six hours long. Time is often expressed using a 12-hour clock, with "a.m." (ante meridiem) referring to the period from midnight to noon and "p.m." (post meridiem) referring to the period from noon to midnight.
In addition to measuring time, hours can also be used to calculate rates of change or speed. For example, if a car travels 60 miles in one hour, its speed can be described as 60 miles per hour (mph). Hours are a fundamental unit of time that are widely used in everyday life and in many fields of study, including physics, engineering, and economics.
To subtract 55 minutes from 9 hours, we need to first convert the 9 hours to minutes.
9 hours x 60 minutes/hour = 540 minutes
Then we can subtract 55 minutes from 540 minutes:
540 minutes - 55 minutes = 485 minutes
Finally, we can convert 485 minutes back to hours and minutes:
485 minutes ÷ 60 minutes/hour = 8 hours with a remainder of 5 minutes
Therefore, 9 hours - 55 minutes is equal to 8 hours and 5 minutes.
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Related Questions
The scores from a state standardized test have a bell-shaped distribution with a mean of 100 and a standard deviation of 15. Use the Empirical Rule to find the percentage of students with scores between 70 and 130 A 100% B 95% C 68% D 99.7%
Answers
Option (B) is correct. Thus, percentage of students with scores between 70 and 130 is 95% .
The term "standard deviation" refers to a measurement of the data's dispersion from the mean. A low standard deviation implies that the data are grouped around the mean, whereas a large standard deviation shows that the data are more dispersed. The average degree of variability in your data set is represented by the standard deviation.
It reveals the average deviation of each score from the mean. Think about the following data: 2, 1, 3, 2, 4. The average and the total square of the observations' departures from the mean will be 2.4 and 5.2, respectively. This means that √(5.2/5) = 1.01 will be the standard deviation.
Here:
μ = 100, σ = 15
Thus we have
30 μ - kσ = 70
= 100 – k(15) = 70
= k= 30/15 = 2
Also we have, μ + Ασ: = 130
100+ k(15) = 130
k = 30/15 = 2
Now, the percentage of students with scores between 70 and 130 is same as the percentage of students between μ - 2σ, μ+ 2σ and by empirical rule the area between μ (+-) 2σ is 95%. Thus, percentage of students with scores between 70 and 130 is 95%
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ead the situations below and determine which relationship is not functional.
Situation 1: a cell phone bill to the amount of minutes used
Situation 2: the perimeter of a square to the length of one of the sides of a square
Situation 3: the total amount of money charged monthly on credit cards to the number of credit cards owned
Situation
does not represent a function.
This is because
.
Answers
There can be multiple outputs (monthly charges) for a given input (number of credit cards), violating the definition of a function. hence, Situation 3 does not represent a function.
Situation 3: the total amount of money charged monthly on credit cards to the number of credit cards owned does not represent a function.
In a function, each input (or x-value) should have a unique output (or y-value). However, in this situation, the total amount of money charged monthly on credit cards depends on the number of credit cards owned. It is possible to have different credit card numbers but still have the same total amount of money charged monthly.
For example, two people could own different numbers of credit cards but have the same monthly charges.
As a result, the definition of a function can be violated by having many outputs (monthly charges) for a single input (number of credit cards).
Because of this, case 3 does not represent a function.
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Genesis is older than Dylan. Their ages are consecutive integers. Find Genesis's age if
the product of their ages is 110.
(ill give brainliest )
Answers
Answer:
Dylan is 10 years old, and Genesis is 11.
Step-by-step explanation:
If Genesis and Dylan's age are consecutive integers, and Genesis is older, we can represent their ages as:
Dylan's age: x
Genesis' age: x+1
This would mean Genesis is a year older than Dylan.
The product of their ages is 110.
We can write an equation:
x×(x+1)=110
x²+x=110 (Distribute x)
x²+x-110=0 (Move 110 to the other side)
You can solve this by the quadratic equation, by factoring or by completing the square
I'll solve it by the quadratic equation:
We must first find the coefficients a, b and c, and then plug it into the formula.
\(x = \frac{ - 1 + - \sqrt{ {1}^{2} - 4 \times 1 \times - 110} }{2 \times 1} \\ x = \frac{ - 1 + - \sqrt{1 + 440} }{2} \\ x = \frac{ - 1 + - 21}{2} \)
Since we have a ± symbol, we get 2 real solutions, x1 and x2.
x=-1±21/2
x1=-1+21/2
x1=20/2
x1=10
x2=-1-21/2
x2=-22/2
x2=-11
Since their age can't be negative, x2 can't be a solution, so Dylan's age must be 10, and Genesis' age must be 11.
Hope this helps, and let me know if you need help with another method to solve this problem!
The constraints of a problem are listed below. What are the vertices of the feasible region? 2x+3y≥12 5x+2y≥15 x ≥ 0 y ≥ 0
Answers
The vertices of the feasible region are (0 , 15/2) , (21/11 , 19/11) and (6 , 0)
Given, the constraints of a problem
2x+3y≥12
5x+2y≥15
x ≥ 0
y ≥ 0
On solving the equations, we get
( 2x + 3y ≥ 12 ) × 2
( 5x + 2y ≥ 15 ) × 3
4x + 6y ≥ 24
15x + 6y ≥ 45
On subtracting, we get
11x ≥ 21
x ≥ 21/11
x = 21/11
On putting the value of x, we get
42/11 + 3y = 12
y = 19/11
Hence, the vertices of the feasible region are (0 , 15/2) , (21/11 , 19/11) and (6 , 0)
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yaster car sharing offers a membership plan with a $42 per month fee that includes 13 hours of driving each month and charges $8 for each additional hour. let be the cost for a month in which a member uses a car for hours. then is the piecewise function 42, for 13, , for 13 for some scalars and . find . round to the nearest whole number.
Answers
The value of b for the cost function F(x)
= mx + b, of a membership plan in car sharing offer ( picewise function) is -64.
We have, yaster car sharing offers a membership plan, the fee of complete month = $42 includes 13 hours of driving each month.
Additional charges for each hour = $8
Let F(x) be the cost for a month in which member uses a car for x hours. F(x) is Piecewise function defined as F(x)= 42, for 0≤x≤ 13,
F(x) = mx+b, for x> 13 for some scalars m and b. We have to determine value of b.
When member uses a car for more than 13 hours, x> 13, For 13 hours monthly fee would be $42 and for hours after 13 hours (x- 13) hours the fee would be $8 for each hour. So, the cost would be
= (x - 13)8+ (42)
Simplify the expression,
= 8x - 104 + 42
F(x) = 8x - 64
Now, comparing the above expression of f(x) with F(x) = mx + b, we get m= 8 , b = - 64 . Hence the required value is - 64.
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Complete question:
Yaster Car Sharing offers a membership plan with a $42 per month fee that includes 9 hours of driving each month and charges $8 for each additional hour. Let F(x) be the cost for a month in which a member uses a car for x hours. Then F(x) is the piecewise function
F(x)= 42, for 0≤x≤ 13
F(x)=mx+b, for x> 13 for some scalars m and b. Find b. Round to the nearest whole number.
What is the simplified form of left parenthesis 16 x to the power of eight end power y to the power of four end power right parenthesis to the power of start fraction three over four end fraction end power question mark 4x6y3 8x6y3 two x to the power of start fraction 11 over four end fraction end power y to the power of start fraction seven over four end fraction end power 8x6y4
Answers
Answer:
\(16x^6y^3\)
Step-by-step explanation:
Given the expression, \((16x^8y^4)^{3/4}\\\\\), we are to simplify the expression
\((16x^8y^4)^{3/4}\\\\= 16x^{8*3/4}y^{4*3/4}\\\\= 16x^{24/4}y^{12/4}\\\\= 16x^6y^3\)
Hence the simplified form of the expression is \(16x^6y^3\)
Please answer this question for me
Answers
Answer: B
Step-by-step explanation:
The vertical asymptotes are at x=-4 and x=1, so the denominator needs to have factors of (x+4) and (x-1).
This eliminates everything except for B.
A lighting designer created a program for the opening of a stage show. When the show starts, 10 lights are on. Every 30 seconds, 1 more light comes on. If t is time in minutes and L is the number of lights that are on, which function best models the number of lights that are on after t minutes of the stage shows?
A. L= 1/2t+10
B. L=2t+10
C. L=30t+10
D. L=10t+1/2
E. L=10t+30
I really need your help!!!
Answers
The number of lights L that are on after t minutes of the stage shows is,
A. L = (1/2)t + 10.
What is a function?A function can be defined as the outputs for a given set of inputs.
The inputs of a function are known as the independent variable and the outputs of a function are known as the dependent variable.
Given, When the show starts, 10 lights are on which is a constant in out function.
Every 30 seconds or (1/2) a minute 1 more light comes on.
∴ The function best models the number of lights that are on after t minutes of the stage shows is,
L = (1/2)t + 10.
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if the population there increased by 15,183 people every week how many more people would be in Mexico city everyday?
Answers
Answer:
The answer is 2169
Step-by-step explanation:
You would do 15,183 x 7 because there are seven days in a week.
The lengths of a professor's classes has a continuous uniform distribution between 49.2 min and55.5 min. If one such class is randomly selected, find the probability that the class length is morethan 51.1 min.P(X> 51.1)= ?
Answers
We have the following:
\(55.5-p(55.5-49.2)=51.1\)Now, we solve for the value p, that is:
\(p(6.3)=0.4\Rightarrow p=0.6984126984\)From this, we have that the probability would be of 0.7%.
A biology student wants to determine if using a fertilizer would help promote growth of new babies in spider plants. The student has access to 90 spider plants of three varieties: green, variegated, and curly. They all are potted in the same amount and type of soil, given the same amount of water, and exposed to the same amount of light. After one year, the shoots will be counted for each plant.
Which of the following describes a random block design for this experiment?
A) The plants are numbered 01–90. Using a line from a random number table, the first 45 two-digit numbers, ignoring repeats and the numbers 91–99 and 00, represent the plants that will receive fertilizer. The remaining 45 plants will not receive fertilizer.
B) The plants are paired together based on similar size and numbered 1 and 2. Within each pair, a 6-sided number cube is rolled. If it lands on 1, 2, or 3, plant 1 receives the fertilizer and plant 2 does not receive fertilizer. If the cube lands on 4, 5, or 6, plant 1 does not receive fertilizer and plant 2 receives fertilizer. This is done for each of the 45 pairs of plants.
C) The plants are grouped based on variety. There are 30 plants of each variety. The plants within each variety are numbered 1–30, and the numbers are put in a random number generator. The first 15 unique numbers represent the plants in each variety that will receive fertilizer and the remaining 15 numbers will represent the plants in each variety that will not receive fertilizer.
D) The plants are grouped based on size. The 30 biggest plants are placed in one group and the 30 smallest plants in another other group. The remaining 30 plants are placed in a third group. For each group, a coin is flipped. If the coin lands on heads then the group will receive the fertilizer. If it lands on tails, then the group will not receive fertilizer. Repeat this procedure for the other two groups.
Answers
Answer:
it is b
Step-by-step explanation:
that is the most effective way to measure how well the fertilizer works with all of the plants
if a is a positive number then -a^6 is
Answers
two negatives create a positive, so just imagine 6 -a’s, and divide each into 3 groups of 2. each of them have best friends to make it positive, as this number is even.
Brenda has four more nickels than quarters in her purse. She has a total of $3.80 in change and a $200 in Nordstrom gift cards. How many nickels does she have? ASAP
Answers
Answer:
16 nickelsStep-by-step explanation:
GivenNickel n = 5 cQuarter q= 25 cTotal change = $3.80 = 380 cn = q + 4Solution5n + 25q = 3805(q + 4) + 25q = 380 ⇒ substitute n with q + 45q + 20 + 25q = 38030q = 360q = 360/30q = 12n = q + 4 = 1612 quarters
16 nickels
Check the number or numbers that are in the solution set of the equationbelow.x +4 < 23A. 10B. 18C. 21D. 20E. 19F. 15
Answers
We got the solution as x<19 after solving the expression.
Given that,
The expression is x+4<23
We have to find the x value by solving the expression.
A mathematical operation such as subtraction, addition, multiplication, or division is used to combine terms into an expression. In a mathematical expression, the following terms are used:
An absolute numerical number is referred to as a constant.
Variable: A symbol without a set value is referred to as a variable.
Term: A term can be made up of a single constant, a single variable, or a mix of variables and constants multiplied or divided.
Coefficient: In an expression, a coefficient is a number that is multiplied by a variable.
Take the expression,
x+4<23
x<23-4
x<19
Therefore, we got the solution as x<19 after solving the expression.
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What value of m makes this equation true?
4m−9=−41
m=−9
m=−8
m = 8
PLEASE HELP ASAP
Answers
First, add 9 on both sides of the equation. You should end up with 4m=-32.
Next, divide both sides of the equation by 4. You should end up with m=-8. (A negative divided by a positive equals a negative)
Hope this helps! Have a great day ;)
The price of cappuccinos is $5.00 each. The price of pistachios is $1.00 per pound. If Curtiss has income of $32.00 and purchases 5.00 cappuccinos, how many pounds of pistachios can he buy
Answers
Answer:
curtiss can buy 7 pounds of pistachios
Step-by-step explanation:
5 cappuccinos x $5 = 25, 32 - 25=7
The number of pounds of pistachios will be 7 pounds.
What is Algebra?Algebra is the study of abstract symbols, while logic is the manipulation of all those ideas.
The acronym PEMDAS stands for Parenthesis, Exponent, Multiplication, Division, Addition, and Subtraction. This approach is used to answer the problem correctly and completely.
The cost of cappuccinos is $5.00 each. The cost of pistachios is $1.00 per pound. Assuming Curtiss has paid $32.00 and buys 5.00 cappuccinos.
Let 'x' be the number of pounds of pistachios. Then the correct option is given as,
1x + 5 × 5 = 32
x + 25 = 32
x = 32 - 25
x = 7 pounds
The number of pounds of pistachios will be 7 pounds.
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Write a simplified expression for the perimeter of the triangle.
Answers
Answer:
28p+23
Step-by-step explanation:
i think this is it I was only in 6th grade 2 years ago
Hey!
Please only answer if you know the answer, the comment section is right below. Please don't waste my points!
Also, please show all of your work, you are trying to help me better understand the concept, not just give me the answer.
The image is down below. Show work! Thanks!
Answers
Answer:
B. 8/17Step-by-step explanation:
cos = adjacent / hypotenuse
cos C = 16/34 = 8/17Correct choice is B
The dean of a major university claims that the mean number of hours students study at her University (per day) is at most 4.9 hours. If a hypothesis test is performed, how should you interpret a decision that rejects the null hypothesis
Answers
Answer:
If the null hypothesis is rejected, the interpreatation is that there is significant evidence at the desired significance level to conclude that the mean time the students study at her university is of more than 4.9 hours.
Step-by-step explanation:
The dean of a major university claims that the mean number of hours students study at her University (per day) is at most 4.9 hours.
At the null hypothesis, we test if the mean is of at most 4.9 hours, that is:
\(H_0: \mu \leq 4.9\)
At the alternative hypothesis, we test if the mean is more than 4.9 hours, that is:
\(H_1: \mu > 4.9\)
Accepting the null hypothesis:
If the null hypothesis is accepted, the interpretation is that there is not significant evidence to conclude that the mean time the students study at her university is of more than 4.9 hours.
Rejecting the null hypothesis:
As is the case in this question, if the null hypothesis is rejected, the interpreatation is that there is significant evidence at the desired significance level to conclude that the mean time the students study at her university is of more than 4.9 hours.
Please help
Solve the equation sqrt(x + 3) + 4 = 5 for the variable. Show each step of your solution process. (10 points)
Answers
Answer:
x=-2
Step-by-step explanation:
sqrt(x+3)+4=5
sqrt(x+3)=1
x+3=1
x=-2
In the expression, the value of variable x is - 2.
What is an expression?Mathematical expression is defined as the collection of the numbers variables and functions by using operations like addition, subtraction, multiplication, and division.
We have to given that;
The expression is,
⇒ √(x + 3) + 4 = 5
Now, We can solve the expression for x as;
⇒ √(x + 3) + 4 = 5
Subtract 4 both side, we get;
⇒ √(x + 3) + 4 - 4 = 5 - 4
⇒ √(x + 3) = 1
Taking square both side,
⇒ (√(x + 3))² = 1²
⇒ x + 3 = 1
Subtract 3 both side,
⇒ x + 3 - 3 = 1 - 3
⇒ x = - 2
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if the teacher picks a student at random,what is the probability that she will select a student with a birthday in january?
a - 11/110
b-11/100
c-33/100
d-3/100
Answers
Answer:
B
Step-by-step explanation:
Add all numbers and get 300 then divide 33 by 300 to get your answer
What is the Width of 6.36-9.24
Answers
Answer:
-2.88
Step-by-step explanation:
6.36-9.24= -2.88
Help pls :,)
Rosa made a mosaic wall mural using 40 black tiles, 33 blue tiles and 27 red tiles.
Enter a percent to represent the number of red tiles in the Mural.
The number of red tiles in the mural represents ??? %
Answers
Answer:
First you have to figure out the total.
42+35+23= 100
So plug it in.
23/100
23%
Your answer is 23%.
Hope this helped ^-^
Step-by-step explanation:
answer this for 18 points btw theres no fractions decimals just normal find th value of x
Answers
Answer:
x = 28°Step-by-step explanation:
From the question the figure above is a triangle.
The sum of angles in a triangle add up to 180°
To find the value of x add up all the angles and equate them to 180 to find the value of x
We have
50 + 2x + 3x - 10 = 180
5x + 40 = 180
5x = 180 - 40
5x = 140
Divide both sides by 5
We have the final answer as
x = 28°Hope this helps you
7. A floor is covered by 800 tiles measuring 10 squared cm. How many square tiles of side 8 cm would be needed to cover the same floor?
Answers
Answer:
1000 tiles
Step-by-step explanation:
Determine total floor space
800 x 10 = 8000 squared cm total floor space.
Divide floor space by size of tile
8000 / 8 = 1000 tiles now required to cover the floor.
whats is the domain of f(x)=6^x
ANSWER FOR EXTRA POINTS AND BRAINLIST ⭐️⭐️⭐️⭐️⭐️⭐️⭐️⭐️⭐️⭐️⭐️
Answers
Answer:
option b
Step-by-step explanation:
x is greater than or equal to 66
Answer:
Option B
Have a nice day! :)
evaluate the expression
(2a/3b)^2, for a =6 and b=-2
Answers
Answer:
4
Step-by-step explanation:
Simply plug in the values of 'a' and 'b' into the expression to get:
\((\frac{2(6)}{3(-2)})^2\)
Simplify:
\((\frac{12}{-6})^2=(-2)^2=4\)
What is the answer help
Answers
Answer: 162°
Step-by-step explanation:
To find the answer to this question, we need to find what 45% of 360 degrees (a circle) is.
First, a percent divided by 100 becomes a decimal.
45% / 100 = 0.45
Next, "of" means multiplication in mathematics.
0.45 * 360 = 162
The central angle will be 162°.
Is (7,-6) a solution to this system of equations?
y = 1/7x+ 7
X = 7
yes
no
Answers
If you want to get is
Y=mx+b
Y=1/7x+7
Y=1/7*7+7 Since x=7
Y=1+7 Compute 1/7*7
Y=8
look at the attachment
Answers
Answer:
5x-60 Is the answer .5*x =5x -(5*12)5x - 60.