Subtract 3 hours, 50 minutes from 5 hours, 20 minutes. 2 hours, 20 minutes
Answers
Answer:
1 hours 30 minutes
Step-by-step explanation:
Subtract 5 hours 20 minutes and 3 hours 50 minutes
which gives 1 hours 30 minutes
Related Questions
What is the solution of the equation n+13=30 ?
Answers
Answer:17
Step-by-step explanation:
1) 30 -13=17
n=17
HELP QUICK LOOK AT THE PICTURE!!!!! NO WRONG ANSWERS
Answers
Answer:
1/2 or 0.5.
Step-by-step explanation:
To calculate the probability of two cards chosen not including T, we need to determine the number of favorable outcomes (cards not including T) and the total number of possible outcomes.
From the provided sample space table:
The favorable outcomes for two cards not including T are:
P, M
P, P
P, R
P, M
R, M
R, P
R, R
R, T
There are 8 favorable outcomes.
The total number of possible outcomes is the number of cells in the table, which is 16.
Therefore, the probability of two cards chosen not including T is 8/16, which simplifies to 1/2 or 0.5.
Answer: 9/16
Step-by-step explanation:
hopefully (i think)
16 total options
9 don't include a T
so 9/16 don't include T
9/16 also don't include M, so they have equal probabilities, which makes sense since there are an equal number of each letter card
Leon used the number line below to show -5 + 4. explain what is wrong with his model.
Answers
Step by step:
Hope that help a little I guess.
haha sorry suddomanz u don't have to do this one. what is the area of this trapezoid.
just tryin to use my points that i got that i have been saving up for a while to answer the questions.
Answers
Answer:
i'll do it anyways: 19575 meters
Multiply the pairs of numbers and match them with their products. Tiles (-5)(4.2) (-7)(-3) (4) (5) (2.5)(-9) Pairs 22.5 21 -22.5 -21 111
Answers
Here are the pairs matched with their products:
- (-5)(4.2) matches with -21
- (-7)(-3) matches with 21
- (2.5)(-9) matches with -22.5
Pairs (4) and (5) do not have corresponding products in the given options.
(-5)(4.2) = -21
(-7)(-3) = 21
(4)(5) = 20
(2.5)(-9) = -22.5
So, the pairs of numbers and their products are as follows:
(-5)(4.2) = -21 matches with -21.
(-7)(-3) = 21 matches with 21.
(4)(5) = 20 matches with 20.
(2.5)(-9) = -22.5 matches with -22.5.
I hope this helps!
Mr. Van made a graph to represent the time his students spent studying for their test and their actual test score. Which is the correct equation for the line of best fit?
a-y = 1.4x + 55
b-y = 1.4x - 84
c-y = 0.72x +60
d-y = 0.72x + 56
HELP ASAP PLEASE
Answers
omggggg plz helpppppppppppppppp
Answers
Answer:
6
6x6=36
36x6=216
Cubed root :)
Answer:
The answer is 6!
Step-by-step explanation:
good luck if this is a test
I need help on these 5 questions:
Answers
Step-by-step explanation:
(2x-3)² - (4x+1)(x − 4)
4x² - 12x + 9 - 4x² - 16x + x - 4
group like terms
4x² - 4x² - 12x+x+9-4
-11x + 5
Pls help me in math, I need this tomorrow, thx :)
Answers
Answer: Range and mean = 8 of both
variance of Set X= 4.7
variance of Set Y= 4.6
Step-by-step explanation:
Two sets of data, set X and set Y are given
a.) Range is the difference of the highest value and the lowest value,
Therefore, Range of set X = 12-4=8
Range of set Y = 12-4=8
Now, Mean of a given data set is the average of all the terms present in the given data set
Mean of set X= Σxif/n = (4+5+6+7+16+18+24)/10 = 8
Mean of set Y= (4+5+7+32+20+12)/10= 8
Therefore, both the data sets has same range and mean.
b.) Standard deviation tells about the variability of the date and is given by,
S.D= σ = √∑ ( X − μ )^2/n
S.D of set X= √(16+9+4+1+0+1+16)/10= √4.7
S.D of set Y= √(16+9+1+0+4+16)/10= √4.6
Variance is the square of S.D, that is, σ^2
Therefore, variance of set X=4.6
variance of set Y= 4.7
c.) The calculated variances of set X and set Y are 4.7 and 4.6 respectively. It implies that the data is more distributed or varied in set X than in set Y. In the other words, data in set Y is more consistent data than of set X.
To learn more about S.D and variance,
https://brainly.com/question/15858152
https://brainly.com/question/12402189
Answer: Range and mean = 8 of both
variance of Set X= 4.7
variance of Set Y= 4.6
Step-by-step explanation:
We know
a.) Range is the difference of the highest value and the lowest value,
Therefore, Range of set X = 12-4=8
Range of set Y = 12-4=8
Now, Mean of a given data set is the average of all the terms present in the given data set
Mean of set X= Σxif/n = (4+5+6+7+16+18+24)/10 = 8
Mean of set Y= (4+5+7+32+20+12)/10= 8
also
b.) Standard deviation tells about the variability of the date and is given by,
S.D= σ = √∑ ( X − μ )^2/n
S.D of set X= √(16+9+4+1+0+1+16)/10= √4.7
S.D of set Y= √(16+9+1+0+4+16)/10= √4.6
Variance is the square of S.D, that is, σ^2
Therefore, variance of set X=4.6
variance of set Y= 4.7
c.) The calculated variances of set X and set Y are 4.7 and 4.6 respectively. It implies that the data is more distributed or varied in set X than in set Y. In the other words, data in set Y is more consistent data than of set X.
The stem-and-leaf plot displays data collected on the size of 15 classes at two different schools.
Mountain View School Seaside School
0 5, 8
9, 8, 2, 0 1 0, 1, 2, 5, 6, 8
8, 7, 6, 5, 5, 4, 4, 3, 1, 0 2 5, 5, 7, 7, 8
0 3 0, 6
Key: 2 | 1 | 0 means 12 for Mountain View and 10 for Seaside
Part A: Calculate the measures of center. Show all work. (2 points)
Part B: Calculate the measures of variability. Show all work. (1 point)
Part C: If you are interested in a smaller class size, which school is a better choice for you? Explain your reasoning. (1 point)
Answers
For Mountain View School:
Data: 0, 0, 0, 0, 1, 2, 3, 4, 4, 5, 5, 5, 5, 6, 7, 8, 8, 8, 9
Mean: (0 + 0 + 0 + 0 + 1 + 2 + 3 + 4 + 4 + 5 + 5 + 5 + 5 + 6 + 7 + 8 + 8 + 8 + 9) / 19
= 100 / 19
≈ 5.26
To find the median, we need to arrange the data in ascending order: 0, 0, 0, 0, 1, 2, 3, 4, 4, 5, 5, 5, 5, 6, 7, 8, 8, 8, 9.
The median is the middle value, which is the 10th value in this case.
Median: 5
For Seaside School:
Data: 0, 0, 0, 1, 1, 2, 2, 4, 5, 5, 5, 5, 6, 7, 7, 8, 8, 8, 9
Mean: (0 + 0 + 0 + 1 + 1 + 2 + 2 + 4 + 5 + 5 + 5 + 5 + 6 + 7 + 7 + 8 + 8 + 8 + 9) / 19
= 80 / 19
≈ 4.21
To find the median, we need to arrange the data in ascending order: 0, 0, 0, 1, 1, 2, 2, 4, 5, 5, 5, 5, 6, 7, 7, 8, 8, 8, 9.
The median is the middle value, which is the 10th value in this case.
Median: 5
Now let's calculate the measures of variability, specifically the range and interquartile range (IQR).
Range: The range is the difference between the largest and smallest values in the dataset.
For Mountain View School:
Range: 9 - 0 = 9
For Seaside School:
Range: 9 - 0 = 9
Interquartile Range (IQR): The IQR is the difference between the third quartile (Q3) and the first quartile (Q1) and measures the spread of the middle 50% of the data.
For Mountain View School:
Q1 = 3
Q3 = 7
IQR = Q3 - Q1 = 7 - 3 = 4
For Seaside School:
Q1 = 2
Q3 = 7
IQR = Q3 - Q1 = 7 - 2 = 5
To determine which school is a better choice for a smaller class size, we can consider both the mean and the median.
Both the mean and median for Mountain View School are higher than those for Seaside School. This suggests that, on average, the class sizes at Mountain View School are larger than those at Seaside School. Therefore, if you are interested in a smaller class size, Seaside School would be a better choice
For Mountain View School:
- Median: The median class size is the middle value, which is 25.
- Mean: The mean class size is the sum of all the class sizes divided by the total number of classes, which is (29 + 28 + 28 + 27 + 25 + 24 + 24 + 23 + 21 + 20 + 19 + 18 + 15 + 13 + 10) / 15 = 21.27.
For Seaside School:
- Median: The median class size is the middle value, which is 20.
- Mean: The mean class size is the sum of all the class sizes divided by the total number of classes, which is (25 + 25 + 27 + 27 + 28 + 28 + 28 + 30 + 31 + 35 + 36 + 38 + 40 + 43 + 45) / 15 = 31.13.
Part B:
For Mountain View School:
- Range: The range is the difference between the largest and smallest values, which is 29 - 10 = 19.
- Interquartile Range (IQR): The IQR is the difference between the third quartile (Q3) and the first quartile (Q1). From the stem-and-leaf plot, we can see that Q1 is 20 and Q3 is 28. Therefore, the IQR is 28 - 20 = 8.
For Seaside School:
- Range: The range is the difference between the largest and smallest values, which is 45 - 25 = 20.
- Interquartile Range (IQR): The IQR is the difference between the third quartile (Q3) and the first quartile (Q1). From the stem-and-leaf plot, we can see that Q1 is 27 and Q3 is 38. Therefore, the IQR is 38 - 27 = 11.
Part C:
If you are interested in a smaller class size, Mountain View School is a better choice for you because it has a lower mean and median class size than Seaside School.
Pls, help! A standard number cube with the numbers 1 through 6 is rolled. Find the probability of rolling a number less than 3. Find the probability of not rolling a number less than 3.
1/3; 2/3
1/2; 1/2
5/6; 1/2
1/6; 5/6
Brainlist for positive attitude and correct answer :D
Answers
Answer: The correct answer is:
Probability of rolling a number less than 3: 2/6 or 1/3
Step-by-step explanation:
Explanation: Out of the six possible outcomes (numbers 1, 2, 3, 4, 5, 6), there are two outcomes that meet the condition of rolling a number less than 3, which are 1 and 2. Therefore, the probability of rolling a number less than 3 is 2 out of 6, which simplifies to 1/3.
Probability of not rolling a number less than 3: 4/6 or 2/3.
Explanation: To find the probability of not rolling a number less than 3, we consider the outcomes that are not favorable (i.e., rolling a 3, 4, 5, or 6). There are four such outcomes, so the probability of not rolling a number less than 3 is 4 out of 6, which simplifies to 2/3. :D
42,765 divided by 7 ty
Answers
Answer:
Exact Form:
42765
7
Decimal Form:
6109.28571428....
Mixed Number Form:
6109
2
7
Answer:
6109.2
Step-by-step explanation:
it is a terminating decimal.
Cards labeled 5, 6, 7, 8, and 9 are in a stack. A card is drawn and not replaced. Then, a second card is drawn at random. Find the probability of drawing a number less then 7 and then 8 or greater second.
Answers
Answer:
1/10
Step-by-step explanation:
Answer:
1/10
Step-by-step explanation:
A home improvement store sells lumber by the foot. It costs $ 24 to buy 8 feet of lumber.
Answers
Answer:
Step-by-step explanation: first divide 24 by 3 to get the price per foot which is 3
Plug in to solve the chart.
3, 4, 72, 40
In the given case, The subject is Mathematics and the cost per foot of lumber is $3.
The subject of this question is Mathematics. The question involves buying lumber from a home improvement store, which is related to the concept of measuring and calculating lengths. To determine the cost per foot of lumber, we can use the formula:
Cost per foot = Total cost / Total length
In this case, the total cost is $24 and the total length is 8 feet. So, the cost per foot of lumber is:
Cost per foot = $24 / 8 = $3
Therefore, each foot of lumber costs $3.
Learn more about the topic of Cost per foot of lumber here:
https://brainly.com/question/15483460
#SPJ3
Draw a line of best fit, and find the slope of that line. Show your work and explain how you did it.
Answers
Help me out with this math problem for 50 points!!!
Answers
Answer:
8 bags and 19.25$
Step-by-step explanation:
4/5÷1/10=8
1bags costs:5.50/2=2,75$=>7 bags cost: 2.75×7=19.25$
STEP BY STEP EXPLANATION:
Please Help
I need an answer ASAP
Answers
Jonathan is driving to his grandma’s house. Jonathan’s car is going 75 mph and he has to go 340 miles still. Brighton, Jonathan’s cousin, is leaving his house and is traveling 70 mph and has to go 320 miles. Who gets to grandma’s house first? How long did it take him?
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Answer: Jonathan will get to his grandma's house first because his car is going 5 mph faster than Brighton's. It will take Jonathan 4 hours and 48 minutes to get to his grandma's house.
Answer: Johnathan will get it in 4.53 hours. Jonathon's cousin will take 4.57 hours.
Step-by-step explanation:
340/75=4.53
320/70=4.57
A rectangle measures 2 1/4 meters by 1 7/8 meters. What is its area??
Answers
Hello!
2^1/4 * 1^7/8
= 0.5 * 0.125
= 0.0625
Step by step equation:
Separate the whole numbers and fractions.
Whole numbers: 2, 1
Fractions: 7/8, 1/4
Now simplify the fractions.
To make the fractions have even denominators we must multiply 1/4 by 2 on the top and bottom, changing 1/4 into 2/8.
Now that the fractions are simplified we multiply them together. 7/8 • 2/8 = 14/8. We now turn this into a mixed number, 1 and 6/8’s.
Now let’s multiply the whole numbers,
2•1 = 2. Now that we have all the numbers laid out let’s combine them.
2 + 1 + 6/8 = 3 6/8’s. Since this is out area you want to make sure to label the product correctly and the label here is meters so the answer would come out to be:
3 6/8’s meters sq.
Hope this helps!
Please answer and show your work.
Answers
Answer:
Step-by-step explanation:
1. Jacob = 150$
Sister= 150$ - 20$ = 130$
So, Jacob = 150$ and Sister = 130$
2. 2 laps = 28 secs
28 divided by 2 = 16
If each lap was run at the same time, it would have been 16 but it wasn't, the second lap was 4 seconds faster. So, we should do 16 - 4 = 12 secs.
The answer is 1st lap = 16 seconds and the 2nd lap = 12 seconds.
3. Total = 120 min
Tuesday = 15 min
Monday = 120 min - 15 min = 105 min
So, Monday = 105 min and Tuesday = 15 min
I hope this helped!
If the told amount was 150, you divide it by 2 and then subtract 20 from Jacob’s amount and add 20 to his sister’s amount.
1st lap- 16secs 2nd lap- 12secs
Since she ran both of the laps in 28 seconds, you divide it by 2 and then subtract 2 for the 2nd lap and add 2 for the 1st lap to have them 4 seconds apart.
Monday- 45mins Tuesday- 75mins
Same thing, divide 120 by 2, subtract 15 for Monday’s total and add 15 for Tuesday’s total
Hope it helps
2a) What is the side length of the following square?*
Answers
Answer:
Exact answer: \( \sqrt{29} \)
Approximate answer: \( 5.385 \)
Step-by-step explanation:
Start at the bottom vertex.
Go up 5 units, then go left 2 units. Now you're at the left vertex.
The vertical segment 5 units long and the horizontal segment 2 units long are the legs of a right triangle. The left side of the square is the hypotenuse of that right triangle.
We now use the Pythagorean theorem to find the length of the hypotenuse.
\( c^2 = a^2 + b^2 \)
\( c^2 = 5^2 + 2^2 \)
\( c^2 = 25 + 4 \)
\( c^2 = 29 \)
\( c = \sqrt{29} \)
\( c \approx 5.385 \)
Explain the cosine rule and sine rule while also saying how to use it and provide examples (keep it in simple terms)
Answers
Answer:
Sure, I'll explain the cosine rule and sine rule in simple terms:
The cosine rule (also known as the law of cosines) is used to find the length of a side or the measure of an angle in a triangle given the lengths of the other sides and the angle between those sides. It states that c^2 = a^2 + b^2 - 2ab cos(C), where c is the length of the side opposite angle C, and a and b are the lengths of the other two sides.
Here's an example of how to use the cosine
Suppose we have a triangle with sides a=6, b=8, and an angle between them c=45 degrees. We want to find the length of the remaining side of the triangle, side a.
Using the cosine rule:
a^2 = b^2 + c^2 - 2bc * cosA
where A is the angle opposite side a, we can plug in our values and solve for a:
a^2 = 8^2 + 6^2 - 2(8)(6) * cos(45)
a^2 = 64 + 36 - 96 * 0.707
a^2 = 10.56
a = sqrt(10.56)
a = 3.25 (rounded to two decimal places)
Therefore, the length of side a is approximately 3.25 units.
Answer:
Step-by-step explanation:
help please i wanna get my assignments done by today so anyone willing to help please help
Answers
Answer:
A - 4/25
Step-by-step explanation:
out of 50 trials Nadia got oraange 8 times
8 out of 50 = 8/50
this is the probability and can be simplified to 4/25
What does the ordered pair (6,204) represent in this situation
Answers
Answer:
what situation??
Step-by-step explanation:
Stuff
$225 grows 3.2% in an account. How much money is in the account after the growth? Express your answer to two decimal places.
Answers
Answer:
To find out how much money is in the account after the growth, we can use the formula:
FV = PV(1+r)
Where FV is the future value of the account, PV is the present value of the account, and r is the rate of growth expressed as a decimal.
In this case,
PV = $225
r = 3.2% = 0.032 (as a decimal)
By substituting the values in the formula:
FV = PV(1+r)
FV = $225 * (1 + 0.032)
FV = $225 * 1.032
FV ≈ $232.7 (rounded to two decimal places)
Therefore, the account has $232.7 after the growth of 3.2%.
Answer: $232.20
Step-by-step explanation:
3.2%=0.032
225x0.032=7.2
225+7.2=232.2
:> I need hep with this math thingyyyyyyyyyyyy
Answers
Explanation:
to find the mean, add all numbers in the data set and divide the sum by how many numbers there are. using this formula, you get 65.
Answer:
65 is the answer
Step-by-step explanation:
17+39+29+81+87+99+103=455= A). 65
I hope this helps.
how to write this in a inequality 69.50 dollars + 5 dollars is 74.50 dollars add 5 dollars 79.50 add 5 dollars again and 84.50
Answers
69.50 +(3 x 5) = 84.5
Note- It seems something is missing from this problem,I answered you other question you may want to look their for better explanation of the problem.
HOPE THIS HELPS & GOOD LUCK.
Alexi bought 5 T-shirts for $12 each and 3 pairs of socks for $2 a pair. Which expression shows how much Alexi spent in dollars. Explain
a) 5 × 12 x 3 × 32
b) 5 × 12 + 3 × 32
c) (5+3) × (12 + 2)
Answers
Answer:
b
Step-by-step explanation:
so hope it help,have a nice day!
Alexi bought 5 shirts. Given that each of them costs 12 dollars, we can say that the equation for their price is:
12 + 12 + 12 + 12 + 12 or just 5 x 12
Now, Alexi also bought socks. 3 pairs of them, in fact. Given that each pair was an astounding 2 dollars, we would get this equation:
2 + 2 + 2 or just 3 x 2
Of course, Alexi bought these things together, so they must pay for both things. The total price would be
5 x 12 + 3 x 2 or 66 dollars
I NEED HELP WITH THIS!!
Question: solve the one-step equation.
r-6=7
Answers
Answer:
r = 13
Step-by-step explanation:
r-6=7
Add 6 to each side
r-6+6=7+6
r = 13
The surface area of the prism is ______ square units. All measurements in the image below are in units. (Input the whole number only.)
A triangular prism is shown with 2 right triangular sides having legs 8 and 6 and hypotenuse 10. The length of the prism is 8.5