A townhouse community of 250 residents wants to determine if installing a new playground will be a good idea. Which group of residents would be the best sample to use for a survey that is designed to gather information about the opinions of all the townhouse community?
A. Randomly choosing 50 residents without children.
B. Randomly choosing 50 residents with children.
C. Randomly choosing 50 residents by drawing house numbers from all the house
numbers in the community.
D. Randomly choosing 50 residents by drawing house numbers from the odd numbered houses in the community.
Answer: C) Randomly choosing 50 residents by drawing house numbers from all the house numbers in the community
Step-by-step explanation: by randomly drawing house numbers you get a good sample size and diverse answers from a good representation of the community. The other examples could create a bias and create inaccurate results. :)
can someone pls help me with this i-ready question!!
Answer: from what I saw on the internet yes and no meant he same thing because 2+2=microwave so on a complete hypothetical metaphorical basis the answer is wiggle your doggies. I also saw on the hub that excusing the behavior of little children is indeed acceptable, so that concludes my answer in finding the ratio of unborn fried air.
Answer:
the mean is 9 because it is the middle number when they are in order
Write the other side of this equation so it's true for all values of x:
1/3(12x + 18) + x =
Aziz's guess must have been ____ gumballs or ____ gumballs since his guess had a percent error of 5%.
Answer: 722 or 798
Step-by-step explanation: Therefore, Aziz's guess must have been 722 gumballs or 798 gumballs since his guess had a percent error of 5%.
Answer:
The percent error Chelsea's guess is 2.3% and Aziz's guess must have been 722 gumballs or 798 gumballs.
Step-by-step explanation:
A locker combination has two nonzero digits, and the digits can be repeated. The first number is 3. What is the probability that the second number is 3? A 1/27 B 1/9 C 1/8 D 8/9
Answer:
B
Step-by-step explanation:
1. A survey asked 200 Grade 4 students about their reading preferences. Based on Graph #1, about how many of them would you expect to prefer comic books?
A. 10
B. 20
C. 70
D. 80
E. 100
2. About how many students do not prefer non-fiction?
A. 60
B. 75
C. 100
D. 150
E. 180
3. Overall, about how many students prefer literature (poems, plays, or novels)?
A. 45
B. 90
C. 100
D. 130
E. 180
Graph #2: Membership in School Clubs
4. At Rory’s school, students must join one after-school club. Based on the data in Graph #2, which club attracted about 30% of students?
A. yearbook
B. art
C. drama
D. hiking
E. running
F. science
5. Approximately What percent of students chose not to join the yearbook club?
A. 15%
B. 30%
C. 75%
D. 85%
E. 90%
6. About what percent of students joined the art club?
A. 30%
B. 25%
C. 20%
D. 15%
E. 5%
Answer:
1. A
2.150
3.c
4. d
5.im not sure
6. B
Step-by-step explanation:
Can't do this because of numbers including e in it.
Answer:
Step-by-step explanation:
Answer:
A) 756522
B) 5687649.7
C) 14561856000000000000
Step-by-step explanation:
❗⚠️PLEASE HELP ASAP!!!!!!!!! ⚠️❗
A histogram shows the number of magazines read last month by the students in a class. What percent of the students read less than six magazines?
can you find the mean and median of the data? Explain.
74% percent of the students read less than six magazines
What is Percentage?percentage, a relative value indicating hundredth parts of any quantity.
A histogram shows the number of magazines read last month by the students in a class
The total number of students are 2+15+3
Number of students=23
Number of students read less than six magazines is 17
Now let us find 17 is what percent of 23
x/100×23=17
23x=1700
Divide both sides by 23
x=1700/23
x=73.9
x=74%
Hence, 74% percent of the students read less than six magazines
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4 3/40 simplest form.
HELP THIS DUE TOOODAAAY!!!
Answer:
163/40
Step-by-step explanation:
multiply 4x40
then add 3
= 163
then put it over 40
163/40
Answer:
To simplify 4 3/40, we need to convert the mixed number to an improper fraction and then simplify:
4 3/40 = (4 × 40 + 3) / 40 (convert to improper fraction)
= 163 / 40
Now, we can simplify this fraction by finding the greatest common factor (GCF) of the numerator and denominator, which is 1:
163 / 40 = (163 ÷ 1) / (40 ÷ 1)
= 163 / 40
Therefore, 4 3/40 in simplest form is 163/40.
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Event A: Spinning blue on the spinner shown Event B: Rolling a 5 on a number cube What is P(A and B)?
Event A: The probability of spinning and landing on blue is 1/5
Event B: The probability of rolling a 5 on a number cube is 1/6
The probability of both A and B happening is:
[tex]\frac{1}{5}[/tex] × [tex]\frac{1}{6}[/tex] = [tex]\frac{1}{30}[/tex]
Hope it helps!
thank you if you help me I only have 1 hour
WILL MARK BRAINLIEST IF YOU ANSWER THIS!!!! (not joking)
There are approximately 7.48 liquid gallons in a cubic foot. If a cylindrical tank holds 1,600 liquid gallons and has a radius of 2.2 feet, what is the approximate height of the water tank? Approximate using pi = 3.14 and round to the nearest tenth.
213.9 feet
44.2 feet
14.1 feet
4.8 feet
Answer: 14.1
................................
v – 57 ≥ – 32
Show work pls
Answer: I'm assuming that you want me to evaluate it? Here is the answer:
Step-by-step explanation:
Solve for V by simplifying both sides of the inequality, then isolating the variable.
Inequality Form: V ≥ 25
Interval Notation: [25, ∞)
I hope this helped! A brainilist is highly appreciated and helpful! <3
Find the value of x.
A) 27
B) 34
C) 21
D) 31
Answer:
C
Step-by-step explanation:
since both angles would be the same (z-angle shape), the angle would also be the same
3x+1
3(21)+1
63+1
64
therefore, the answer would be C
How many terms are in this expression?
6s+7u+4
Answer:5
Step-by-step explanation:O its 5 the answer is 5
Find which statement is wrong.
Answer:
The incorrect statement is number #2
Step-by-step explanation:
i gest said it lol
Could someone please help me?
Answer:
Small = 6.25 kilograms
Large = 15.25 kilograms
Step-by-step explanation:
Can someone help! Thank you!
Reason:
The numerator is [tex](2.1)^5[/tex]
Raising that to the third power gives
[tex]((2.1)^5)^3 = (2.1)^{5*3} = (2.1)^{15}[/tex]
We multiply the exponents. The general rule is
[tex](a^b)^c = a^{b*c}[/tex]
Use that same rule to cube the denominator.
[tex]((0.9)^4)^3 = (0.9)^{4*3} = (0.9)^{12}[/tex]
Therefore,
[tex]\left(\frac{(2.1)^5}{(0.9)^4}\right)^3=\frac{((2.1)^5)^3}{((0.9)^4)^3}\\\\=\frac{(2.1)^{5*3}}{(0.9)^{4*3}}\\\\=\frac{(2.1)^{15}}{(0.9)^{12}}\\\\[/tex]
In short
[tex]\left(\frac{(2.1)^5}{(0.9)^4}\right)^3=\frac{(2.1)^{15}}{(0.9)^{12}}\\\\[/tex]
evaluate the expression when m=5. m^2-16
6. As part of a science project, Juaquim
built the figure shown.
6a. How much space does the figure take up?
6b. What are the dimensions of the three
rectangular prisms you used to find the
volume of the figure?
14 in.
5 in.
6c. Draw lines on the figure to show how you could have divided it into
prisms differently.
14 in.
16 in.
6
-16 in.
5 in.
Answer:
Volume (V) = Area of base × height of the prism
12 plus the quotient of 8 and 4
Answer:
[tex]14[/tex]
Step-by-step explanation:
[tex]12+(8/4)\\12+2\\14[/tex]
1/5 divided by 4 help!
Answer: 0.05 or 1/20
Explanation: 1/5 divided by 4 in fraction form is 1/20, and in decimal form it is 0.05.
Josiah kept track of how many songs of each genre were played in an hour from his MP3 player. The counts are displayed in the table below. He has a total of 1,500 songs on his player. Josiah predicted the number of rock songs on his MP3 player to be 300 songs. Which statements about his solution are true? Select three choices. Josiah’s Music Sample 1 Sample 2 R & B 5 R & B 4 Pop 4 Pop 3 Classical 3 Classical 5 Jazz 2 Jazz 4 Rock 6 Rock 4 Josiah’s work: StartFraction 10 over 20 EndFraction = StartFraction x over 1,500 EndFraction. StartFraction 10 times 30 over 20 times 30 EndFraction = StartFraction x over 1,500 EndFraction. 300 = x. He should have found the average of the number of rock songs by averaging 4 and 6 to get 5. He did not multiply the numerator and denominator by the correct number to equal 1,500. His answer will be one-half of what he got because he did not divide 10 by 2 when setting up the proportion. He can only solve the proportion by multiplying the numerator and denominator by a common multiple. He should have multiplied the numerator and denominator by 75, not 30, because 20 times 75 = 1,500
Answer:
Answer is B)
Step-by-step explanation:
Josiah's mistake is (b) He did not multiply the numerator and denominator by the correct number to equal 1,500
The proportion is given as:
Multiply both sides by 1500
Evaluate the expression on the right-hand side
Multiply 10 by 1500 on the left-hand side
Divide 15000 by 20 on the left-hand side
Rewrite the equation as:
From the question, we can see that the products are not well carried out.
Hence, Josiah's mistake is (b)
He got the rock songs part right. He did not multiply the numerator and denominator by the correct number until 1500.
What is Fraction ?What is fraction and example?
A fraction is numerical value that is a part of a whole. It is evaluated by dividing a whole into number of parts
Types of Fractions Proper fraction,Improper fraction,Mixed fraction,Like fractions,Unlike fractions,Equivalent fractions.
The statements that are true about Josiah's solution are:
He correctly found the proportion of rock songs by setting the ratio (number of rock songs in the sample) / (total number of songs in the sample) = (number of rock songs in the MP3 player) / (total number of songs in the sample). sample MP3 player) and solving for x:
Start Fraction 10 over 20 EndFraction = Start Fraction x over 1500 End Fraction.
Initial fraction 10 times 30 over 20 times 30 final fraction = initial fraction x over 1500 final fraction.
300 = x.
He didn't hit the average of the rock songs right because the average of 4 and 6 is 5, not 300.
He did not multiply the numerator and denominator by the correct number to 1500 because he should have multiplied both by 75 instead of 30 to get:
Initial fraction 10 times 75 over 20 times 75 final fraction = initial fraction x over 1500 final fraction. He did not have to divide 10 by 2 when he determined the ratio, because the ratio is already in its simplest form. So the real arguments are:
He got the rock songs part right. He did not multiply the numerator and denominator by the correct number until 1500. He did not have to divide 10 by 2 to determine the ratio.
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The shirts available in a clothing store are sizes S, M, and L. A total of 240 shirts are sold in a day. 20% of the shirts are of size S and 45% are size M. Find the number of shirts sold for each of the sizes.
Answer: L 38
Step-by-step explanation:
total 84
Answer: 48 small shirts
108 medium shirts
84 Large shirts
Step-by-step explanation:
20% of 240 = 48
45% pf 240 = 108
45 + 20 = 65, 100 - 65 = 35
35% of 240 = 84
And 48 + 108 + 84 = 240
It takes Jacki 3 hours to complete 7 posters and 9 hours to complete 21 posters.How long will it take her to complete 28 posters
I use this website too often but please HELP ME
3 of the 11 oz, 3 of the 8oz, and 4 of the 6 oz
Platter Prices
6-ounce $9.95
8-ounce $12.95
11-ounce $15.95
If a gratuity of 16% was added to the bill, which of the following is closest to the total of the steak platters and gratuity, ignoring sales tax?
A. $170
B. $134
C. $20
D. $147
Answer:
D, because yes.
20 - [(8 + 6) divide by 2]
Answer:
13
Step-by-step explanation:
As per the BODMAS, 8+6=14
14/2=7
20-7=13
Answer: The answer is 13!
Step-by-step explanation:
The first thing that you have to do is use PEMDAS, and do the things in parentheses first. This is 8+6. This equals 14. Divide 14 by 2 to get 7. The final thing to do is 20-7, and this is 13. Thus the answer is 13.
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Can someone help me with questions 8,9 and 10 I will make you the brainliest
Answer:
8 - 75%
9 - 25%
10 - 50%
Step-by-step explanation:
Look at the figure attached which illustrates the Percentages at different regions which we will use it to solve the required questions.
8 - The Percentage of Data below the Upper Quartile = 25% + 25% + 25% = 75%
9 - The Percentage of Data located between the Lower Quartile and the Median = 25%
10 - The Percentage of the Data above the Median = 25% + 25% = 50%
A circular circus tent has a diameter of 5 meters. What is the approximate area of the floor of the circus tent? Use 3.14 for pi.
Answer:
[tex]\text{A}=19.6 \ \text{m}^2[/tex]
Explanation:
We are given a circular circus tent
diameter = 5m
we know that
[tex]\text{radius}=\dfrac{\text{diameter}}{2}[/tex]
[tex]\text{radius}=\dfrac{\text{5}}{2}[/tex]
[tex]\text{radius}=2.5[/tex]
so, [tex]\text{r}=2.5[/tex]
now, we can use area formula
[tex]\text{A}=3.14(\text{r})^2[/tex]
now, we can plug values
[tex]\text{A}=3.14(\text{2.5})^2[/tex]
[tex]\text{A}=19.625[/tex]
so,
[tex]\text{A}=19.6 \ \text{m}^2[/tex]
Answer:
Step-by-step explanation:
The approximate area of the floor of the circus tent is 19.625 square metres.
The area to be found is that of a circle. The data given in the question is
the diameter of the circle. To calculate the area of the circle, we need to first find the radius. The radius is half of the diameter. By calculation, d/2, we get 5/2= 2.5m. The formula for finding the area of the circle is πR². By substituting the values, we get A(Area) = 3.14 (given) * 2.5 * 2.5 square metres. The area comes out to be 19.625 square metres.
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Algae cannot survive at depths greater than 300 meters below sea level. The inequality that represents depths at which algae cannot survive is x < –300. Graph the solution on the number line provided
Answer:
b is the correct graph
Step-by-step explanation: