Answer: (B) She could sample a proportional number of students in each type of dance class.
Step-by-step explanation: 100%
The teacher should sample a proportional number of students in each type of dance class so that it possess all qualities of a good sample.
What is a good sample?Firstly, the sample should be representative of the population. The teacher's goal is to determine the favorite type of dance class for students. Thus, sample should also consist of students only. This rules out option four. Sample cannot consist of teachers.
Secondly, the sample should be large enough to draw meaningful conclusions from it. This rules out option three. Sampling one student in each type of dance class will not give reliable results.
Third, the sample should be proportional. It will give truly accurate results id each unit or group of the population is fairly represented in the sample. Therefore, option two i.e., sampling a proportional number of students in each type of dance class is the best choice.
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Q1: 12 5/20 + 1 11/20 + 6 2/20
Q2: 9 5/10 x 5/8
Q3: 7x 10 3/7
Answer:
199÷10=19.9, 95/26, 73
Step-by-step explanation:
=(12×20+5)÷20+(20×1+11)÷20+(6×20+2)÷20
=245÷20+31÷20+122÷20
=(245+31+122)÷20
=(276+122)÷20
=398÷20
=199÷10
=19.9
9 5/10×5/8
=(10×9+5)/10×5/8
=95×5/(10×8)
=475/80
=95/26
7×10 3/7
7×(7×10+3)/7
7×73/7
73
Which phase of the moon is shown?
full moon
first quarter
waning gibbous
waxing crescent
Answer:
waxing cresent
Step-by-step explanation:
its a cresent shape.
If you were babysitting, would you rather
Charge $5 for the first hour and $8 for each additional hour?
Or
Charge $15 for the first hour and $6 for each additional hour?
Explain your reasoning.
Answer:
wouldn't you charge more to get mroe money lol or am i reading this wrong?
Step-by-step explanation:
If i want more money i would pick the 15 dollars and 6 dollars cuz i will get more money..
Answer:
Charge $15 for the first hour and $6 for each additional hour?
Explain your reasoning.
Step-by-step explanation:
Because they could just keep like adding on hours and I'd rather be making 2 dollar's more even though the first hour is 15$. If they just keep adding on hours it could add up and be more beneficial. Im sorry if that didnt make sense its hard to explain. :) ask questions if needed lol
Edit: Idk it depends if your only babysitting for a few hours than obviously the $15 and $6 one.
But if you dont know how long your babysitting for or your babysitting for longer than the first option.
Please help me I HAVE to turn this in ASAP thx!!!
Answer:
8. This is unlikely.
9. As likely as not. I hope this helps!
The temperature inside a scientific instrument was measured as 37.5 °C. Find the Fahrenheit temperature by multiplying the Celsius temperature by 1.8 and adding 32. *
Answer:
99.5
Step-by-step explanation:
if you have a calculator put in 37.5 * 1.8 hit = then add 32
I’m running low on brain cells can I get some help and please explain how u got the answer.
Answer:
50
Step-by-step explanation:
line up the numbers based on type of units like this
$1000 represents 100%
$x represents 5%
cross multiply
x*100= 1000*5
divide both sides by 100 to isolate x
x= 1000*5/100= 10*5= 50
Heyyyyy! Need Help with this! I will give brainliest to correct answer!! <3
Answer:
The answer is 1/8 pints left
Step-by-step explanation:
If you had 3/4 pints already and you poured 5/8 pints into your glass, you would only have 1/8 pints left. First you need to make them both have the same denominator (8) to do that you need to multiply 3/4(2)=6/8. 6/8-5/8=1/8 pints left.
please help this is due stoday and i really need help
Answer:
last two years when i used ALEXS in middle school, well everyone would use m athway to solve the problems or maybe search them up online. ik this doesnt help much but you can do it!
Step-by-step explanation:
The boys combine their cans and take them to the local recycling center at the end of the three months. If the recycling center pays $ 0.40 per pound for aluminum, how much money will Weston and Zachary earn?
Answer:
nothing CUZ YOU DIDNT SAY HOW MUCH THEY BROUGHT if you say that ill answer with the correct answer
Step-by-step explanation:
What is the point on the graph of f(x) = (2/3) ^ x when x 1 ?
Answer: f(x)= 2(3)^x
putting x = 0
y = f(0) = 2(3)^0= 2
so at x = 0 y should be 2
putting x = 1
y = 2(3)^1 = 6
so at x = 1 y should be 6
select the graph which has these points
so option A is your answer
Step-by-step explanation: idk i got it correct on a quiz
I might be wrong :)
Please help me and explain below.
150% of $22 (math test)
Answer:
$33
Step-by-step explanation:
Since you already have $22 because of the 100 in 150%, you just need to find 50% of $22 and add it to 22.
22 x 0.5 = 11
11 + 22 = $33
What is the measure of
You separate bulbs of garlic into two groups: one for planting and one for cooking. The tape diagram represents the ratio of bulbs for planting to bulbs for cooking. You use 6 bulbs for cooking. Each bulb has 8 cloves. How many cloves of garlic will you plant?
Using simple mathematical operations we can tell that we will plant 48 cloves of garlic.
What exactly are mathematical operations?A mathematical "operation" is the process of calculating a value utilizing operands and a math operator. There are predefined rules associated with the math operator's symbol that must be applied to the supplied operands or numbers.The order of operations refers to the rules that govern how to solve an expression with several operations. Parentheses, Exponents, Multiplication, Division, Addition, and Subtraction are all referred to as PEMDAS (from left to right).So, the number of cloves of garlic we can plant:
We know that there are 8 cloves in each bulb.And in the tape diagram, we can see that there are 6 bulbs kept for planting.So, the number of cloves planted will be:
6 × 8 = 48Therefore, using simple mathematical operations we can tell that we will plant 48 cloves of garlic.
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A school held a jump-roping contest. Diego jumped rope for 20 minutes.
Jada jumped rope for 15 minutes. What percentage of Diego’s time is that?
Lin jumped rope for 24 minutes. What percentage of Diego’s time is that?
Noah jumped rope for 9 minutes. What percentage of Diego’s time is that?
Diego 20/20 = 1
Jada 15/20 =
Lin 24/20 =
Noah 9/20 =
Answer:
Jada 15
Lin 24
Noah 9
Diego 20
Step-by-step explanation:
Hope I helped
Need help with algebra. Solve #1 and explain how you got your answer.
The value of y varies directly with x, when y = 32 and x = 4. What is the equation for this relation? What is the value of y when x = -7?
equation:
y= :
Answer:
y = -56
Step-by-step explanation:
I'm pretty sure the answer is -56 because the difference between 32 and 4 is 8, when you divide. Then, -7 x 8 = -56
F. If you make $28 dollars and hour and work for 32 hours in a week. How much money do you Gross ?
you multiply $28 by 32. Which is $896
G. Take the answer from Letter F ( weekly earnings) and find what 70% of that amount is ?
Answer:
F. 896 G.627.2
Step-by-step explanation:
Take 896 and multiply it by 70% if u want u can use a calculator.
Help please and Explain properly with the terms: Corresponding angles and Parallel lines cut by a transversal and AA Criterion
Line segment AB and QR are parallel. Use the figure below to answer the questions:
Are the triangles APB and APR similar? Explain in terms of the following:
Corresponding angles and Parallel lines cut by a transversal
AA Criterion
Answer: are u still on it?
Step-by-step explanation:
Which equation represents a proportional relationship?
y=2x+10
y=311x
y=21-4
y=8x-1
Answer:
y=311x
Step-by-step explanation:
A proportional equation is in the form y=kx
Another question! A piece of fabric costs $5.29 a yard, which is an estimate cost of 16.3
yards of fabric?
A. $ 21
B. $ 80
C. $ 165
D. $ 800
Answer:
B.)$80
5.29 times 16.3 is 86.227 but it is not close to 21 not 165 and not a 800 so the answer would be 80
Answer:
B.
Step-by-step explanation:
If we round 5.29 to 5, and 16.3 to 16,
5 x 16 = 80.
Therefore it's B.
Hope I helped! Please leave a comment or rating plz!
A television is regularly priced at $900. This week, it goes on sale for 15% off. What's the new sale price? Step 1: set-up and solve the percent proportion. Step 2: subtract to find the sale price.
A.$765
B.$135
C.$1035
D.$800
Answer: A
Step-by-step explanation:
DUE TODAY‼️‼️
PLEASE HELP SLOVE DO NOT COMMENT ANNOYING STUFF THIS IS SERIOUS‼️‼️
5.)10
6.)9
7.)Linear
8.)Linear
9.)Non linear
10.)Non linear
Step-by-step explanation:
Suppose that x,y,z are positive integers satisfying x <= y <= z, and such that the product of all three numbers is twice their sum. What is the sum of all possible values of z?
All solutions
1. x = 1 , y = 3 , Z = 8
2. x = 1 , y = 4 , Z = 5
3. x = 2 , y = 2 , Z = 4
PLS HELP ASAP IW ILL GIVE BRIANLEST IF RIGHT DO NOT ANSWER UNUSEFUL ANSWERS
1 equals 0.46 (make a line over the 6 to show it is repeated)
2 equals 0.4 (make a line over the 4 to show it is repeated)
3 equals -0.6 (make a line over the 6 to show it is repeated)
4 equals -0.857142 (make a line over all numbers past the decimal to show it is repeated)
5 equals 3.3409 (make a line over the 09 at the end to show it is repeated)
6 equals -1.7727 (make a line over the 27 at the end to show it is repeated)
7 equals 66.5%
8 equals 3.16 (make a line over the 6 to show it is repeated)
9 equals -9 over 10
10 equals -17 over 20
11 equals -3 and 4 over 5
Sue and Kim earn $52 per week for delivering magazines. Sue worked for x weeks and earned an additional total bonus of $12. Kim worked for y weeks. Which expression shows the total money, in dollars, that Sue and Kim earned for delivering magazines?
64x + 52y
52x − 12 + 52y
52x + 64y
52x + 12 + 52y
Question 4(Multiple Choice Worth 1 points)
Answer:
it is the 3rd one
Step-by-step explanation:
Answer:
I think its the fourth one.
Step-by-step explanation:
Because they both worked for $52 a week, with an additional $12.
CAN SOME ONE HELP PLZZZZZZZ IF YOU DONT KNOW THO PLZZ DONT ANSWER IM ONLY CHOIS BRAINLEST IF YOU SAY WHY YOU CHOSE THAT ANSWER THANKS
find the sum 1/2 + 3/8
Answer: 7/8
Step-by-step explanation:
The easiest way to do this is to find a common denominator, so first we find out 2 times how much equals 8? 2x4 = 8. So with 8 being our common denominator, we have to multiple 4 to every number in the fraction 1/2. So 1x4 = (4/8) = 2x4. Then you just add the top numbers, so 4 + 3 = 7 and keep the denominator. 7/8.
Answer:
Step-by-step explanation:
0.5 + 0.375 = 0.875
0.875 = 7/8
Martha (from problem 9) has some expenses each week. Each week she buys $9.72 worth of
supplies to help her in her business. Assuming she starts with a zero balance, what would the balance be
in her account after three weeks?
if Martha is not earning money to pay it back, it would be negative. Each week, she loses -9.72 dollars. so -9.72 x 3 weeks = your problem. I'll let you take it from there and solve the rest
$1750 x 21 days = $36,750 for her daily article
9.72 x 3 weeks = $29.16
$36,750 - $29.16 = $36,720.84
balance = $36,720.84
What is 18/11 written as a decimal
Answer: The answer is 1.63 with the hundredths with the 63 repeating
Step-by-step explanation: