Answer:
4 hours
Step-by-step explanation:
Part of the pool filled by first pipe in an hour = 1/6
Part of the pool filled by second pipe in an hour = 1/12
Part of the pool filled by first pipe and second pipe in an hour = 1/6 +1/12
[tex]=\frac{1*2}{6*2}+\frac{1}{12}\\= \frac{2}{12}+\frac{1}{12}\\\\=\frac{3}{12}\\\\=\frac{1}{4}[/tex]
Time taken by both the pipes to fill the pool = 4 hours
Which expression is NOT equivalent to 8x ?
Answer:
B
Step-by-step explanation:
7x + 1 isn't equal to 8x
For example:
Addition. In this equation, you can add all of the coefficients (2, 5, and 4) because the variables are the same (a).
2a + 5a + 4a = 11a
Subtraction. In this equation, you can subtract all of the coefficients (11, 5, and 4) because the variables are the same (a).
11a – 5a – 4a = 2a
Help for answers and 1-8 answers and show how u got it ASAP tysm 14points
Answer:
find common denominators
1. 19/15 or 1 4/15
2. 5/12
3. 29/24 or 1 5/24
4.1/6
5. 19/30
6. 13/18
7. 31/24 or 1 7/24
8. 11/20
The graph shows the relationship between James’s resting heart rate and the number of hours he exercises per day. For every hour of exercise, James’s resting heart rate decreases by about (1,5,15,20) beats per minute. His resting heart rate is about (50.5, 70, 77.5,82.5) beats per minute when he exercises 4 1/2 hours a day.
Answer:
decreases by about 5 beats per minute
His resting heart beat is about 80 beats per minute
Step-by-step explanation:
Answer:
first slot is 5 and second 82.5
I know this is not about work but I need help. I was watching an anime years ago and I can't remember the name but I hope my description helps.
The anime is about a boy raised by a computer and has a monster friend who eats his arm to survive but the monster didn't mind. Then he turns into a mecha and a spaceship came to take him away... PLEASE tell me the name :(
Answer: Then Bokurano : ours?
What is the width of a rectangular prism with a length of 13 feet, volume of 11,232 cubic feet, and height of 36 feet?
Answer:
24
Step-by-step explanation:
which shows the students in order from greatest test score to lease test score Alex 0.95 Octavia 16/20 Tonya 9/10 Wilson 0.87
Answer:
Alex (0.95), Tonya (0.90), Wilson (0.87), Octavia (0.80)
Step-by-step explanation:
To solve this, we have to convert all of the scores into either a decimal or a fraction. In this case, I will be solving all of them into decimals since it is easier.
Alex: 0.95
Octavia: 16/20 = 0.80
Tonya: 9/10 = 0.90
Wilson: 0.87
Therefore, we can order these from greatest score to least score.
Alex (0.95), Tonya (0.90), Wilson (0.87), Octavia (0.80)
The hair on a person's head grows about 1.27 centimeters each month. Max's hair is 7.62 centimeters long today. How
long will his hair be in 3 months if he lets it grow?
45.72 cm
11.43 cm
29.03 cm
3.81 cm
Answer:
the answer is 11.43 cm
Step-by-step explanation:
1.27×3=3.81
3.81+7.62=11.43
HELP PLS
find the value of x
Answer:
x = 5
Step-by-step explanation:
These angles are supplementary so:
9x + 12x + 75 = 180
21x + 75 = 180
21x = 180 - 75
21x = 105
x = 5
pleaseeeeeeee helppppppp
Answer:
138°
Step-by-step explanation:
69X2=138
HELPPPPPPPPPPPPPPPPPPPP
Answer:
13 - 20
Step-by-step explanation:
That is definitely correct
Name the relationship Someone please help I really need help! (NO LYING ) (NO LINKS)
Answer:
dude what relationship?
we don't see anything u need to give us clues for something
Answer:
Answer is 2 s
Step-by-step explanation:
1/2 log2x=3log23 rewrite with out using logarithmic
Answer:
729
Step-by-step explanation:
[tex]\frac{1}{2}log_{2}x=3log_{2}3 \\[/tex]
[tex]log_{2}\sqrt{x} =log_{2}3^{3}[/tex]
[tex]\sqrt{x} =27 \\[/tex]
x=27²=729
Help
See the picture
Answer:
It is equal to 80.9
Step-by-step explanation:
Please give me brainliest I would appreciate it
Students in a school are asked to pick either football, rugby or tennis to play in their lesson.
The number of students who picked football and rugby are in the ratio of 5:4
The number of students who picked rugby and tennis are in the ratio of 12:25
125 students picked tennis.Work out how many students picked football.
Step-by-step explanation:
let x be rubgy liked let y football liked
x/125=12/25
ansx=60
again
y/60=5/4
ans y=75
football liked students are 75
Compute the exact value of the function for the given x-value without using a calculator. (2 points) f(x) = 5x for x = -1
Answer:
The exact value of the function for the given x-value is of -5.
Step-by-step explanation:
In this question, we compute the numeric value of the function f(x) for x = -1, that is, we replace every instance of x in the function by -1.
f(x) = 5x for x = -1
[tex]f(-1) = 5(-1) = -5[/tex]
The exact value of the function for the given x-value is of -5.
You select a marble without looking and then put it back. If you do this 6 times, what is the
best prediction possible for the number of times you will pick a purple marble?
Answer:
One time
Step-by-step explanation:
The probability of picking a purple marble once is 1/6, so if I pick a marble 6 times, then (1/6)*6=1
The radius of a circular clock is 13 centimeters. What is the
area of the clock?
Use 3.14 for pi
Answer:
452.16
Step-by-step explanation:
A = (3.14)r^2
A=(3.14)12^2
A=452.16
Answer:
530.66 cm
Step-by-step explanation:
A= π r 2
input known values
A= (3.14) (13^2)
Simplify
A= (3.14) 169
A= 530.66
Which statement is true
Answer:
I think is the last one I don't know but I can give you the explanation down to the step by step equation
Step-by-step explanation:
In a box plot the left side the left corners of that box represents Q1, the right corners of the box represents Q3. The line inside the box represents the median of the data
20. An expression is shown.
2(x+3) - (x-1)
Create an equivalent expression without parentheses.
8
157+7
Answer:
What you have is correct:
8/15x+7
Step-by-step explanation:
6/5x+6-2/3x+1
18/15x-10/15x+6=
8/15x+7
haha i give points plus brainiest
Answer:
Thanks you pleasentful waffle
Step-by-step explanation:
In each of the following scenarios, determine if the data are paired.
1. We would like to know if Intel's stock and Southwest Airlines' stock have similar rates of return. To find out, we take a random sample of 50 days for Intel's stock and another random sample of 50 days for Southwest's stock.
a. Paired
b. Not Paired
2. We randomly sample 50 items from Target stores and note the price for each. Then we visit Walmart and collect the price for each of those same 50 items.
a. Paired
b. Not Paired
3. A school board would like to determine whether there is a difference in average SAT scores for students at one high school versus another high school in the district. To check, they take a simple random sample of 100 students from each high school.
a. Paired
b. Not Paired
Answer:
1. Can be Paired or Not Paired
2. Paired
3. Not Paired
Step-by-step explanation:
Two sets of observations are paired if each observation in one set has a special correspondence or connection with exactly one observation in the other data set.
1. Can be Paired or Not paired
Reason -
We might look at testing the difference of means using a two sample t-test. However, we may also try running a paired t-test.
But its used in cases where the observations are usually from the same populations at different times or through different sources etc.
Hence can't conclude that it is paired or not paired.
2. Paired
Reason -
Each record is a price of the same item from different stores.
3. Not paired
Reason -
This is again a case of testing the difference of means of two-samples (2 independent samples precisely) that are not paired.
1. Can't conclude paired or not paired
2. Paired
3. Not Paired
What do you mean by paired or unpaired?Two sets of observations are said to be paired if each observation in one data set has a specific connection with exactly one observation in the other data set otherwise it is unpaired.
1. Can't conclude paired or not paired because It may look at testing the difference of means using a two-sample test, But it's used in cases where the observations are from the same populations at different times or through various sources, etc.
2. Paired because each item is the price of the same item from different stores.
3. Not paired because in this case of testing the difference of means of two independent samples that are not paired.
Learn more about paired and unpaired:
https://brainly.com/question/15182074
Marisol rolled a six-sided number cube 200 times. Her results are in the table shown.
what is the experimental probability of Marisol rolling a 5? Answer the answer as a percent.
Answer:
18%
step by step explanation:
36/200 × 100=18
Answer:
3/10
Step-by-step explanation:
the answer is 3/10 hope this helps may i be marked brainliest?
5+5(6*7)Easy points cause I love y’all pur
Is the unknown side a leg of the triangle or the hypotenuse?
Answer:
I think it a triangle
What is the probability of rolling a number greater than or equal to 8 with the
sum of two dice, given that at least one of the dice must show a 6?
======================================================
Explanation:
I'll represent the dice results as an ordered pair. Something like (6,2) means the first die is a 6 and the second is a 2. The sum being 6+2 = 8.
There are only two ways to get to a sum of 8, and those two ways are:
(6,2)(2,6)Here are other possibilities if we allow the sum to be larger than 8
(6,3)(6,4)(6,5)(6,6)(3,6)(4,6)(5,6)(6,6)You should find that there are a total of 10 ways to have two dice add to a value that is 8 or larger, given that at least one of the dice must be a 6.
This is out of 6*6 = 36 ways to roll two dice without such a restriction. The probability we're after is 10/36 = (2*5)/(2*18) = 5/18
Side note: 5/18 = 0.2778 = 27.78% approximately
How do you work them out?
Answer:
work what out?
Step-by-step explanation:
i need the equation or a picture or something to elaborate this
PLZ I NEED TO GET BRAINLIEST FOR SOMETHING
Answer:
what workout
Step-by-step explanation:
The three side lengths of a triangle are given. Which triangle is a right triangle?
hopefully the text is ok :-)
Answer:
Triangle A
Explanation:
This isn't really an explanation, but I don't really know how to explain. The other answers just aren't correct (They aren't right triangles).
someone answer this correctly please!!
Answer:
8 < [tex]\sqrt{71}[/tex] < 9
Step-by-step explanation:
You need to find the perfect squares above and below 71
8*8= 64
9*9 =81
8 < [tex]\sqrt{71}[/tex] < 9
exponential 2^2/2^-3
Answer:
32
Step-by-step explanation:
2 ^(2- -3)
= 2^5
Answer:
32
Step-by-step explanation:
[tex] \dfrac{2^2}{2^{-3}} = 2^{2 - (-3)} = 2^{2 + 3} = 2^5 = 32 [/tex]
A pet rescue center takes in animals from a local shelter. Half of the animals that they take in are cats.
Let a = the total number of animals.
Let c = the number of cats.
Complete the table to show the number of cats, c, that are taken in by the pet rescue when a animals are taken in.
Answer:
1st answer =10
2nd answer=4
3rd answer=12
4th answer=8