24 swimmers are swimming in the pool. 9 of them are female. What fraction of swimmers are male?
Answer:
5/8 of swimmers in pool are male
Step-by-step explanation:
24 total swimmers
9 female so 9/24
15 male so 15/24
simplify 15/24
5/8 of swimmers in pool are male
Jim and Jabu join a gym. Jim's gym take R150 deposit,and he pays R120 monthly. Jabu's gym takes no deposit, but his monthly payment is R150. They compare their total payments after four months, after five months and after six months.
3.1 Reasoning
3.2 Number sentence
Answer:
What should I answer?
Step-by-step explanation:
Jim's payment is more than Jabu's after four months and Jabu's payment is more than Jim’s after five months.
It is given that Jim’s gym takes a deposit of 150 and a monthly charge of 120.
Let x be the number of months for which both are paying the charges.
Then, Jim's total charge=150+120x.
Now, Jabu’s gym takes no deposit and takes a monthly charge of 150.
Jabu’s gym total charge=150x
Substitute x=4 in the obtained expression to determine the total payment of both after four months.
Jim's total charge=150+120(4)
=150+480
=620
Jabu’s gym total charge=150(4)
=600
So, Jim's payment is more than Jabu after four months.
Substitute x=5 in the obtained expression to determine the total payment of both after five months.
Jim's total charge=150+120(5)
=150+600
=750
Jabu’s gym total charge=150(5)
=750
So, Jabu's payment is more than Jim’s after five months.
Therefore, Jim's payment is more than Jabu's after four months and Jabu's payment is equal to Jim’s after five months.
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A random sample of 900 13- to 17-year-olds found that 411 had a computer in their room with Internet access. Let p be the proportion of all teens in this age range who have a computer in their room with Internet access.Suppose you wished to see if the majority of teens in this age range have a computer in their room with Internet access. To do this, you test the hypotheses
H0: p = 0.50 vs HA : p≠0.50
The test statistic for this test is:_______.
a. 1.96
b. 2.60
c. 27.50
d. 2.59424
Answer:
The test statistic for this test is: z = -2.60, option b.
Step-by-step explanation:
The test statistic is:
[tex]z = \frac{X - \mu}{\frac{\sigma}{\sqrt{n}}}[/tex]
In which X is the sample mean, [tex]\mu[/tex] is the value tested at the null hypothesis, [tex]\sigma[/tex] is the standard deviation and n is the size of the sample.
H0: p = 0.50 vs HA : p≠0.50
This means that [tex]\mu = 0.5, \sigma = \sqrt{0.5*0.5} = 0.5[/tex]
A random sample of 900 13- to 17-year-olds found that 411 had a computer in their room with Internet access.
This means that [tex]n = 900, X = \frac{411}{900} = 0.4567[/tex]
Value of the test-statistic:
[tex]z = \frac{X - \mu}{\frac{\sigma}{\sqrt{n}}}[/tex]
[tex]z = \frac{0.4567 - 0.5}{\frac{0.5}{\sqrt{900}}}[/tex]
[tex]z = -2.598[/tex]
The test statistic for this test is: z = -2.60, option b(should be).
7. Find S 14 for the arithmetic sequence. 101+98+95+92+..
Step-by-step explanation:
[tex]S _{n} = \frac{n}{2} (2a + (n - 1)d) \\ S _{14} = \frac{14}{2} ((2 \times 101) + (14 - 1) \times -3) \\ =1,141[/tex]
Sara is mong a call. One of the finie piece she is using is 1 inches 3
inches. She will need 20 of the pieces. How many fear of fabric will she need
fispatam
Answer:
What are you even asking?
1
2
3
4
5
6
8
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10
CO
2a
Which expression is equivalent to 364a6b7c9?
bo(142?b°c
4a?b?c°(16)
Baºb°c" (Vb0
Ba?b%cº(PVD
what is 9/-2 as an equivalent fraction
Answer:
18/-4 as equivalent fraction there are many others
The graph of f(x) = 2x^2 − 3x + 5 will be translated 8 units down, producing the graph of q(x). What equation represents the new function, q(x)?
Help me pls
q(x=f(x-h+k
here, h=0, k=-8, so
to translate f(x) 8 units down, we have
q(x)=f(x-0)-8
=2x^2-3x+5-8
=2x^2-3x-3
Suppose there are n people on a bus. At the next stop, 9 more people get on the bus. No one gets of the bus. Draw a bar diagram to model the number of people now on the bus. Use this model to write an algebraic expression for the number of the people now on the bus.
Answer:
Algebaric Expression & Bar Diagram graphic representation of number of people in bus.
Step-by-step explanation:
No. of people on bus = n
After 9 more boarding & no one deboarding the bus , no. of people = n + 9
Bar diagrams is graphical method for presentation of data. Presenting the given in bar diagram :
A sample of 68 college students yields a mean annual income of $3248 and a standard deviation of $885. Find the margin of error in estimating μ at the 99% level of confidence.
Answer:
can put this solution on YOUR website!
margin of error is t(0.995 df=67)*s/sqrt(n)
t=2.65
the margin of error is 2.65*885/sqrt(68)=$284.40
Find the value of x in the triangle shown below. 6 10
Please could somebody help me on this one
Answer:
49π
Step-by-step explanation:
Are of the circle equal π[tex]r^{2}[/tex] (where π is pi and "r" is the radius). Radius equals the diameter divided by 2. Therefore the area of this circle equals...
[tex](14 / 2)^{2}[/tex]π = [tex]7^{2}[/tex]π = 49π
The normal rainfall in September for Denver is 1.24 inches. The normal rainfall for Miami in September is 7.63 inches. The normal rainfall in January for Miami is 2.01 inches. The normal rainfall in January for Denver is 6.91 inches.
To the nearest tenth of an inch, how much more rain does Miami get in September than it gets in January?
Answer:
5.60 inches
Step-by-step explanation:
7.63 - 2.01 = 5.62
5.62 ≈ 5.6
Tell me if there is any missing information in the question because the information for Denver seems useless and there probably something missing
Which inequality is true (I ready diagnostic)
Answer:
Step-by-step explanation:
I am sorry but please give detailed question
Answer:
i'd be happy to help you, but there isn't an image attached.
Step-by-step explanation:
Plz help plz help will mark brainilest
Answer:
BC=4
Step-by-step explanation:
Use the distance formula
[tex] \sqrt{} (7 - 3) ^{2} + (2 - 2) ^{2} [/tex]
[tex] \sqrt{16} [/tex]
4
What expression is equivalent to 2 m plus m plus m
Answer: 2m+m+m is really the same thing as saying m+m+m+m, or 4m. Use whatever you like as the expression :)
Drag the boxes to match the answers
Answer:
hi
Step-by-step explanation:
this is too hard for me but i am sure u will get it :D
calcula la altura de la torre latinoamericana hacia al colocarse a 104 metros de su base se ve la punta de la antena con un ángulo de 60 grados
Answer:
en verdad no sé la respuesta de esta pregunta
Clark made four of his truck payments late and was fined four late fees. The total change to his savings from late fees was −$48. How much was one late fee??
Answer:
$12
Step-by-step explanation:
His 4 late fees took -48 so I just divided the amount to the number of fees
5th grade question PLEASE HELP!
Vedansh filled 10 lbs of candy equally into 6 bags to give to six of his friends. How
much candy does each friend get? Simplify your answer. I WILL MARK U BRAINLIEST!
Answer:
1.66666666666666666667
Step-by-step explanation:
if rounded by the nearest tenth it is 1.7
Hope this helps :)
Answer:
10/6 = 1 and 2/3
Step-by-step explanation:
10 pounds of candy, 6 bags.
that means 10 divided by 6, or 10/6
simplify that 10-6 = 4, 6 can only be subtracted once, so it is 1 and 4/6 or 2/3
2/3 is 0.666666... so add it together and you get 1.66666... or 1 and 2/3
I’ll give points + brainalist please help!!
Step-by-step explanation:
x+6+90+3x-4=180 - - > x=22
So, the angle is 22+6=28°
f(x) = 20x + 50
Please help.
Answer:
70
Step-by-step explanation:
50 +20
GEOMETRY PLEASE HELP!!! What is the surface area of the square pyramid shown if the height is 15 m?
Answer:
The answer is 180 cm.......
PLEASE HELP !
Someone has offered you a wager on the outcome of a die roll. You will pay him
$100 for each time the standard, six-sided die lands on one, and he will pay you $30 for each time the die lands on any other number. Without your awareness, he has loaded the die so that it has a 40% change to land on the number one, and besides
that an equal change to land on any of the values 2 through 6.
What is the expected value of one round of gambling in this scenario?
-$12
-$32
$2
-$22
You'll lose on average $22 per roll.
====================================================
Explanation:
Normally there is a 1/6 chance to land on any given side of a standard die, but your friend has loaded the die in a way to make it have a 40% chance to land on "1" and an equal chance to land on anything else. Since there's a 40% chance to land on "1", this leaves 100% - 40% = 60% for everything else.
Let's define two events
A = event of landing on "1".B = event of landing on anything else (2 through 6).So far we know that P(A) = 0.40 and P(B) = 0.60; I'm using the decimal form of each percentage.
The net value of event A, which I'll denote as V(A), is -100 since you pay $100 when event A occurs. So we'll write V(A) = -100. Also, we know that V(B) = 30 and this value is positive because you receive $30 if event B occurs.
To recap things so far, we have the following:
P(A) = 0.40P(B) = 0.60V(A) = -100V(B) = 30Multiply the corresponding probability and net value items together
P(A)*V(A) = 0.40*(-100) = -40P(B)*V(B) = 0.60*30 = 18Then add up those products:
-40+18 = -22
This is the expected value, and it represents the average amount of money you earn for each dice roll. So you'll lose on average about $22. Because the expected value is not zero, this means this game is not mathematically fair.
This does not mean that any single die roll you would lose $22; instead it means that if you played the game say 1000 or 10,000 times, then averaging out the wins and losses will get you close to a loss of $22.
What is the correct value for x , in the equation, 4x + 12 = 60?
Answer:
x = 12
Step-by-step explanation:
im 100% sure i hope this helps :)
Answer:
[tex]4x + 12 = 60 \\ 4x = 60 - 12 \\ 4x = 48 \\ x = \frac{48}{4} \\ x = 12[/tex]
=> 12 IՏ Tᕼᗴ ᑕOᖇᖇᗴᑕT ᗩᑎՏᗯᗴᖇ.
ʰᵒᵖᵉ ⁱᵗ ʰᵉˡᵖˢ
89.5, 71, 75, 76, 74, 87, 89, 71, 85
mode = ?
Answer:
mode of this question is 71
Answer:
71
Step-by-step explanation:
because mode is the number that occurs most frequently
Trina is making a friendship necklace at summer camp using 1.6 cm beads. What is a reasonable estimate for the length if she uses 24 beads? *
A.22.4 cm
B.40 cm
C.33.8 cm
D.38.4 cm
How to write 4 508 300
in words?
Answer:
four million five hundred eight thousand three hundred
Step-by-step explanation:
your welcome!
HELP WILL MARK BRAINLIEST ANSWERRRRRR IF GOTTEN RIGHT
A ball is thrown into the air from a height of 4 feet at time t = 0. The function that models this situation is
h(t) = -1662 +63 + 4, where t is measured in seconds and h is the height in feet.
What is the height of the ball after 2 seconds?
Answer:
B, D, B, D
Step-by-step explanation: