Answer:
ok my fwend
Step-by-step explanation:
Jane took 20 minutes to drive her boat upstream to water Skeeter favorite spot coming back later in the day at the same boat speed took her 10 minutes if the current in that part of the river is 3 km/h what was her boat speed in Stillwater
HELP!!! I HAVE TO DO THIS!! WILL GIVE
BRAINLIEST! PLZ HAVE EXPLANATION!
1.2 times 7.98
5.1 times 3.42
7.0 times 6.47
8.2 times 9.67
9.04 times 3.4
6.16 times 5.0
3.75 times 8.4
9.4 times 2.75
7.3 times 7.30
5.8 times 8.48
6.0 times 2.53
8.7 times 1.79
2.5 times 6.83
9.2 times 8.05
1.0 times 9.01
Answer:
1. 9.576
2. 17.442
3. 45.29
4. 79.294
5. 30.736
6. 30.8
7. 31.5
8. 25.85
9. 53.29
10. 49.184
11. 15.18
12. 15.573
13. 17.075
14. 74.06
15. 9.01
Step-by-step explanation:
Use a multiplication method to find the answers. I would put it up here but i dont know how.
Find the missing probability.
P(B)=12,P(A∩B)=740,P(A|B)=?
A. 1/2
B. 7/20
C. 7/40
D. 2/5
Answer:
B. 7/20
Step-by-step explanation:
P(A | B) = P(A∩B) / P(B) is the formula for conditional probability
= (7/40) / (1/2)
Copy dot flip
= 7/40 * 2/1
=7/20
pls some help im so stuck im stuck as a cat in a tree dude plz help i
ill give u 100 pointes
Answer:
It's the positive i, no matter what i is equal to.
a father is 25 years older than his son.Five years ago he was 6 time old as his son was find their presents
Answer:
the present age of the father be x and the present age of the son be y.
It is given that man is 24 years older than his son that is:
x=y+24
x−y=24..........(1)
Also, 12 years ago, he was five times as old as his son that is:
(x−12)=5(y−12)
x−12=5y−60
x−5y=−60+12
x−5y=−48..........(2)
Now subtract equation 1 from equation 2 to eliminate x, because the coefficients of x are same. So, we get
(x−x)+(−5y+y)=−24−48
i.e. −4y=−72
i.e. y=18
Substituting this value of y in (1), we get
x−18=24
i.e. x=24+18=42
Hence, the present age of the father is 42 years and the present age of the son is 18 years.
Step-by-step explanation:
1. What is the sample space if you roll two dice? What is the probability of rolling a sum of 7?
2. You and a friend go to a restaurant where you both order a soup and a salad. There are four soups (A, B, C, D) and 3
salads (1, 2, 3) to choose from. If you and your friend decide to get completely unique meals, what is the sample space
of possible orders you can make?
3. Give 3 examples of disjoint events.
4. The probability that Bob gets to work on time is 80%. The probability that Sarah gets to work on time is 90%. The
probability that they're both on time is 72%. What's the probability that Bob OR Sarah is late for work?
5. Jake's Pizza Place is offering a deal where they'll deliver your pizza in under 30 minutes or your pizza is free. They
manage to deliver the pizza in under 30 minutes 92% of the time. What's the probability that you'll get your pizza for
free?
6. The probability that a randomly selected student in our class likes soccer is 54%. If we select 3 random students
from our class, what is the probability that all of them like soccer?
7. The probability that a randomly selected student in our class likes soccer is still 54%. If we select 4 random students
from our class, what is the probability that all of them don't like soccer?
8. There are 6 blue marbles, 5 red marbles, and 4 green marbles in a box. If you pull a green marble out of the box, what
is the probability that the next marble you draw is red?
9.60% of students in a class studied for a test AND got an A on that test. 75% of students studied for the test. What is
the probability that a student got an A given that they studied for the test?
Probabilities are used to determine how likely it is for an event to happen.
(1) A roll of two dice
Let the dice be A and B. The sample space of each is:
[tex]A = \{1,2,3,4,5,6\}\\B = \{1,2,3,4,5,6\}[/tex]
To get the sample space (S) of the sum of the dice, we simply add up the individual element of both dice. So, we have:
[tex]S = \{(1+1),(1+2),(1+3),(1+4),(1+5),(1+6),.............,(6+1),(6+2),(6+3),(6+4),(6+5),(6+6)\}[/tex]
This gives
[tex]S = \{2,3,4,5,6,7,.............,7,8,9,10,11,12\}[/tex]
The complete sample space is:
[tex]S = \{2,3,3,4,4,4,5,5,5,5,6,6,6,6,6,7,7,7,7,7,7,8,8,8,8,8,9,9,9,9,10,10,10,11,11,12\}[/tex]
[tex]n(S) = 36[/tex] --- the total outcomes
The probability of rolling a sum of 7 is:
[tex]P(7) = \frac{n(7)}{n(S)}[/tex]
Where
[tex]n(7) = 6[/tex] ---- number of 7's in the sample space
So, we have:
[tex]P(7) = \frac 6{36}[/tex]
[tex]P(7) = 0.167[/tex]
The probability of rolling a sum of 7 is 0.167
(2) Restaurant
We have:
[tex]Soup = \{A,B,C,D\}[/tex]
[tex]Salads = \{1,2,3\}[/tex]
To get the sample space (S), we simply pick the individual elements of the above data. So, we have:
[tex]S = \{A1, A2, A3,B1, B2, B3,C1, C2, C3,D1, D2, D3\}[/tex]
(3) Disjoint events
Events are said to be disjointed if they cannot happen at the same time. 3 examples are:
Event 1: You are in China. Event 2: You are in NigeriaEvent 1: Heading towards north. Event 2: Heading towards southEven 1: Outcome of even number in a roll of die. Event 2: Outcome of an odd number in the same die(4) Bob and Sarah
Let
[tex]A \to[/tex] Bob gets to work on time
[tex]B \to[/tex] Sarah gets to work on time
[tex]P(A) = 80\% \\ P(B) = 90\%\\P(A\ n\ B) = 72\%[/tex]
The probability that Bob OR Sarah is late for work is represented as:
[tex]P(A'\ or\ B')[/tex]
This is calculated using:
[tex]P(A'\ or\ B') = P(A') + P(B') - P(A'\ n\ B')[/tex]
Where:
[tex]P(A') = 1 - P(A) = 1 - 80\% = 20\%[/tex]
[tex]P(B') = 1 -P(B) = 1 - 90\% =10\%[/tex]
[tex]P(A\ n\ B') = P(A) \times P(B') = 20\% \times 10\% = 2\%[/tex]
So, we have:
[tex]P(A'\ or\ B') = P(A') + P(B') - P(A'\ n\ B')[/tex]
[tex]P(A'\ or\ B') = 20\% + 10\% - 2\%[/tex]
[tex]P(A'\ or\ B') = 28\%[/tex]
[tex]P(A'\ or\ B') = 0.28[/tex]
The probability that Bob OR Sarah is late for work is 0.28
(5) Jake's Pizza
Let
[tex]A \to[/tex] The proportion of time they deliver on time
[tex]B \to[/tex] You get your pizza for free
So:
[tex]P(A) = 92\%[/tex]
You get your pizza for free if they didn't deliver within 30 minutes.
This means that:
[tex]P(B) = 1 - P(A)[/tex] --- Complement rule
So, we have:
[tex]P(B) = 1 - 92\%[/tex]
[tex]P(B) = 0.08[/tex]
The probability that you get your pizza for free is 0.08.
(6) Students and Soccer
Let:
[tex]A \to[/tex] Probability that a student likes soccer
So:
[tex]P(A) = 54\%[/tex]
If all 3 selected students like soccer, the probability is calculated as:
[tex]Pr = P(A) \times P(A) \times P(A)[/tex]
[tex]Pr = P(A)^3[/tex]
[tex]Pr = 54\%^3[/tex]
[tex]Pr = 0.157[/tex]
The probability that all 3 selected students like soccer is 0.157
(7) Students and Soccer
Let:
[tex]A \to[/tex] Probability that a student likes soccer
[tex]B \to[/tex] Probability that a student does not like soccer
So:
[tex]P(A) = 54\%[/tex]
[tex]P(B)= 1 - P(A)= 1 - 54\% = 46\%[/tex] ---- Complement rule
If all 4 selected students do not like soccer, the probability is calculated as:
[tex]Pr = P(B) \times P(B) \times P(B) \times P(B)[/tex]
[tex]Pr = P(B)^4[/tex]
[tex]Pr = 46\%^4[/tex]
[tex]Pr = 0.045[/tex]
The probability that all 4 selected students do not like soccer is 0.045
(8) Marbles
[tex]Blue = 6 \\ Green = 4 \\ Red = 5[/tex]
When the green marble is selected, we are left with
[tex]Blue = 6 \\ Green = 3 \\ Red = 5[/tex]
The probability of selecting a red marble at this point is:
[tex]P(Red) = \frac{Red}{Blue + Green + Red}[/tex]
[tex]P(Red) = \frac{5}{6+3+5}[/tex]
[tex]P(Red) = \frac{5}{14}[/tex]
[tex]P(Red) = 0.357[/tex]
The probability that the next marble you draw is red is 0.357
(9) Studying for test
Let
[tex]A \to[/tex] Students got an A
[tex]B \to[/tex] Students studied for test
So:
[tex]P(A\ n\ B) = 60\% \\ P(B) = 75\%[/tex]
The probability that a student got an A given that they studied for the test is represented as:
[tex]P(A | B)[/tex]
So, we have:
[tex]P(A | B) = \frac{P(A\ n\ B)}{P(B)}[/tex]
[tex]P(A | B) = \frac{60\%}{75\%}[/tex]
[tex]P(A | B) = 0.80[/tex]
The probability that a student got an A given that they studied for the test is 0.80
Read more about probabilities at:
https://brainly.com/question/16693319
I need help ASAP plzzzz
Express the following fraction in simplest form,only using positive exponents
Answer: -16.2k^10
Step-by-step explanation:
(3k^4)^5 / -15k^10
3^5k^20 / -15k^10
243k^20-10 / -15
243k^10 / -15
-16.2k^10
PLEASE! HELP HELP HELP!
Answer:
it's say download FPD SORRY I CAN'T SLOVE IT
HELP PLS AND THANK U
Answer:
C ≥ 8
the absolute value of the variable c is greater than or equal to 8
Step-by-step explanation:
What is the sum of −7+5?
You may use the number line to help you figure out the answer.
A number line ranging from negative 10 to positive 10, in increments of 1.
Drag and drop the sum into the box to match the expression.
Answer:
-2
Number Line:
1 2 3 4 5
-10 -9 -8 -7 -6 -5 -4 -3 -2 -1 0 1 2 3 4 5 6 7 8 9 10
Answer:
dude it is too easy bro -2 I don't really like math but the answer is -2 so goodluck
Step-by-step explanation:
-7+5=?
count but start from -7 instead like this
-7 -6 -5 -4 -3 -2 -1 1 2 3 4 5 6 7
now we just count from -7
-7 -6 -5 -4 -3 -2
how much five not subtract add you are going up this time so good luck
here a number line too.
< -10 -9 -8 -7 -6 -5 -4 -3 -2 -1 0 1 2 3 4 5 6 7 8 9 10 >
A car is traveling at 35 mi/hour. What is the car's speed in feet per second?
Answer:51.33ft/s
Step-by-step explanation:Just look at how many seconds are in a hour and divide by that
50 pt to the person who answers this!
Select all the numbers that are the solutions to the inequality x > 5:
a. 4
b. 5
c. 6
d. 5.2
e. 5.01
f. 0.5
Convert 120 Ibs to kilograms
Answer:
54.431 kilograms
Step-by-step explanation:
don't have step by step but 1kg is 2.205lbs
-4z+1=bc+c solve for z
I need help please help
Answer:
no solution
Step-by-step explanation:
x + 6 cannot be x so there is no solution. hope this helps
Answer:
No solution
Step-by-step explanation:
[tex]x + 6 = x \\ x - x = 6 \\ 0 = 6[/tex]
Find the slope of the line passing through the points (-6, 6) and (4, -7).
Answer:
-13/10
Step-by-step explanation:
The formula for slope is [ y2-y1/x2-x1 ].
-7-6/4-(-6)
-13/10
Best of Luck!
WILL MARK BRAINLIEST:
This week Harry spent 1/2
of his pocket money on a ticket for a football ma
He also spent 1/8
of his pocket money on a scarf at the match.
(a) What fraction of his pocket money has Harry spent?
(b) What fraction of his pocket money does Harry have left?
The fraction of money spent is 5 / 8 x.
The fraction of money left is 3 / 8 x.
How to find the fraction of money he spent?This week Harry spent 1/2 of his pocket money on a ticket for a football match. Therefore,
let
x = amount of money he has
Therefore,
amount spent on football match = 1 /2 x
He also spent 1/8 of his pocket money on a scarf at the match.
Therefore,
amount spent on scarf = 1 / 8 x
Fraction of money spent = 1 / 2 x + 1 / 8 x = 4 + 1 / 8 = 5 / 8 x
Fraction of money left = x - 5/8 x = 8x - 5x/8 = 3 / 8 x
learn more on fraction here: https://brainly.com/question/24216547
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What is the total length of 3 pieces that are 1/4 foot long?
Answer:
3/4
Step-by-step explanation:
1/4 + 1/4 + 1/4 =3/4
or
1/4 x 3 = 3/4
Answer:
3/4 feet
Step-by-step explanation:
the common denominator (4) always stays the same.
you add the 3 pieces.
I can’t write this. it’s on the image. Please help.
Answer:
608 minutes.
Step-by-step explanation:
When you add 8.24 and 11.03 you get 19.27 this number then needs to be multiplied by 32 which leaves us with 616.64. The question asks on average how many minutes James traveled, so I would round to the nearest number which would be 608.
I hope this helped lol
I'm giving 20 points
in the United States 8•10⁹ text messages are sent every month. about how many text messages is this?
Answer:
8,000,000,000 text messages every month.
Step-by-step explanation:
[tex]8*10^9[/tex]
[tex]10^9[/tex] means there will be 9 zeroes at the end of 1. So it will be 1,000,000,000.
So 8* 1,000,000,000 will be 8,000,000,000 text messages every month.
Convert 10010011001 into a number with commas.
Answer:
10,010,011,001
Step-by-step explanation:
Converting the number 10010011001 into a number with commas gives us 10,010,011,001.
Given that,
The number is 10010011001.
Used the concpet of number system which states that,
A writing system used to express numbers is known as a number system. It is the mathematical notation used to consistently express the numbers in a particular set using digits or other symbols.
Here, the number is 10010011001.
So, it can be written as,
10010011001 = 10,010,011,001
Therefore, the number 10010011001 with commas would be 10,010,011,001.
To learn more about the Number system visit:
https://brainly.com/question/17200227
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12 years ago, Juan was 2/3 the age he is now. Write and solve an equation to figure out how old he is now.
Answer:
he is now 18
Step-by-step explanation:
2/3 so their are 3 parts but you have 2 for know so 12 by 2 is 6 and 6 times 3 is 18.
Someone please help meee I beg you
how do I slove this equation
16x+2:4=2x
(7th grade)
Answer:
[tex]x = - \frac{1}{28} [/tex]
Step-by-step explanation:
is your answer
It takes 5 workers 3 days to build 120 birdhouses. How long will it take 3 workers to build 95 birdhouses?
Answer:
It will take [tex]3[/tex] workers to build [tex]95[/tex] birdhouses
Step-by-step explanation:
Given:
[tex]5[/tex] workers to built [tex]120[/tex] birdhouses[tex]=3[/tex] days
To find how long will it take [tex]3[/tex] workers to build [tex]95[/tex] birdhouses
By unitary method,
[tex]1[/tex] worker to built [tex]120[/tex] birdhouses [tex]=3[/tex] × [tex]5[/tex] days
[tex]1[/tex] worker to built
So ,
[tex]1[/tex] worker to built
[tex]3[/tex] workers to built [tex]1[/tex] birdhouse[tex]=\frac{3*5}{120*3}[/tex] ⇒[tex]\frac{1}{24}[/tex]days
[tex]3[/tex] workers to built [tex]95[/tex] birdhouses [tex]=\frac{1}{24}[/tex] × [tex]95[/tex]
[tex]= 3.95[/tex] or [tex]4[/tex] days.
Learn more about unitary method, refer:
https://brainly.com/question/23264426Shanbi,s household consumes 45units of water one month.how many litres of water do they consumes
Four students took an exam. The fraction of the total possible points that each received is given. Which student had the highest score? A. Monica, 22/55
B. Lily, 17/20
C. Nikki, 4/5
D. Sydney, 3/4
Answer:
B
Step-by-step explanation:
The easiest way to find the answer is to convert all of the fractions to have the same denominator,...
A = (22/55 / 11 = 2/5 and 2/5 * 20) = 40/100
B = (17/20 * 5) = 85/100
C = (4/5 * 20) = 80/100
D = (3/4 * 25) = 75/100
B (Lily) is the highest followed by C (Nikki), D (Sydney), and A (Monica)
Hope it helps,... Chow,...!
If the sequence is: 7, 11, 15, 19 ......407. Find the number of term at 407. *
99
100
89
101
hope you found it helpful.
Anton has 4 tiles.
One is a regular hexagon, one is a regular pentagon and two are equilateral triangles.
Anton thinks the 4 tiles will fit together perfectly, as shown in the diagram.
Show calculations to prove that he is wrong.
Answer:
Anthon is wrong (il dit des carabistouilles)
Step-by-step explanation:
It is a question of angle.
[tex]\widehat{\gamma}=180^o-\dfrac{360^o}{5} =108^o\\\\\widehat{\beta}=180^o-108^o=72^o\ and\ not\ 60^o\\[/tex]
The exterior angle of the pentagon is not equal to the interior angle of the equilateral triangle. So, he is incorrect.
What is a polygon?The polygon is a 2D geometry that has a finite number of sides. And all the sides of the polygon are straight lines connected to each other side by side.
Anton has 4 tiles. One is a regular hexagon, one is a regular pentagon and two are equilateral triangles. Anton thinks the 4 tiles will fit together perfectly, as shown in the diagram.
The exterior angle of the hexagon is given as,
⇒ 360° / 6
⇒ 60°
The exterior angle of the pentagon is given as,
⇒ 360° / 5
⇒ 72°
And the internal angle of the triangle is given as,
⇒ 180° / 3
⇒ 60°
The exterior angle of the pentagon is not equal to the interior angle of the equilateral triangle. So, he is incorrect.
More about the polygon link is given below.
https://brainly.com/question/17756657
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