Only (B) 4.72% of the couples polled have 5 or more children.
What do we mean by random sample?A simple random sample (or SRS) in statistics is a subset of individuals (a sample) chosen at random from a larger set (a population) with the same probability.It is the process of selecting a sample at random. In SRS, each subset of k people has the same chance of being chosen for the sample as any other subset of k people.To find what number of children occurred the least frequently:
We know that a total of 1250 couples were polled.Determine the lowest frequency and divide it by the total number of couples surveyed.The lowest frequency corresponds to 5 or more children.The percentage is as follows:
50/1250 × 100 = 4.72Therefore, only (B) 4.72% of the couples polled have 5 or more children.
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The complete question is given below;
A random sample of 1,250 couples was asked the question, "How many children presently reside in your household?"
Number of Children—Frequency
0——250
1——-112
2——560
3 ——201
5 or more ——59
What number of children occurred the least frequently? Calculate this percent
A) 2, 55.2%
B)5 or more, 4.72%
C)5 or more, 11.91%
D)4.21.67%
Simplify the following expression.
(13x + 9y) + (38x + 33y)
-----------------------------------
22x + 42y (A)
22x + 46y (B)
51x + 42y (C)
51x + 46y (D.)
Answer:
C: 51X+42Y
13x + 38x + 9y + 33y
adding,
51x + 42y so option C
PLEASE HELP ASAPPP !!! WILL GIVE BRAINLIEST AND 5 STAR RATING
Answer:
1/3
Step-by-step explanation:
Solve the equation. Check your answer. 22 = 6x + 1 -3x what does x equal?
Answer:
7
Step-by-step explanation:
22=6x+1-3x
21=6x-3x
21=3x
7=x
The function f is defined by the following rule
f(x)=2x-1
Complete the function table
The value of the function at x = -3, -2, 0, 1, and 5 will be -7, -5, -1, 1, and 9, respectively.
What is the value of the expression?When the relevant factors and natural laws of a mathematical model are given values, the outcome of the calculation it describes is the expression's outcome.
The function is given below.
f(x) = 2x - 1
The value of the function at x = - 3 will be
f(-3) = 2(-3) - 1
f(-3) = - 6 - 1
f(-3) = - 7
The value of the function at x = - 2 will be
f(-2) = 2(-2) - 1
f(-2) = - 4 - 1
f(-2) = - 5
The value of the function at x = 0 will be
f(0) = 2(0) - 1
f(0) = 0 - 1
f(0) = - 1
The value of the function at x = 1 will be
f(1) = 2(1) - 1
f(1) = 2 - 1
f(1) = 1
The value of the function at x = 5 will be
f(5) = 2(5) - 1
f(5) = 10 - 1
f(5) = 9
The value of the function at x = -3, -2, 0, 1, and 5 will be -7, -5, -1, 1, and 9, respectively.
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cuál es el doble de 5.85
Answer:
11.7
Step-by-step explanation:
5.85 * 2 =11.7
Peter is 10 years old and is 5 years younger than half his dad's age. If his dad is Z years old, what is Z?
Answer:
Z = 30
Step-by-step explanation:
trust me bro
fhfhfhfhhffh
Answer:
Please give brainliest if you think it applies
30
Step-by-step explanation:
Z/2 -5 = 10
Add 5 to both sides
Z/2 = 15
Multiply both sides by 2
Z = 30
|−5| − (−9) I need help asap!!!
Answer:
14
Step-by-step explanation:
the absolute value function always gives a positive result , that is
| - a | = | a | = a
- (- ) = + given
| - 5 | - (- 9)
= 5 + 9
= 14
Answer:
14
Step-by-step explanation:
Be extremely careful with absolute values, parentheses, and subtraction.
[tex]\left|-5\right|-\left(-9\right)=\left|-5\right|+9\\\left|-5\right|+9\\\left|-5\right|=5\\5+9\\=14[/tex]
Find the magnitude of the resultant force and the angle it makes with the positive x-axis. (let |a| = 26 lb a
Magnitude of the resultant vector = 31.3 lb and Angle of the resultant vector = 23.3o are the magnitude of the resultant force and the angle .
what is magnitude of forces?
The amount that encapsulates the force's strength is known as its magnitude. Consider the following scenario: the force is 10 N in the east. The direction is indicated by "towards east," while the force is indicated by "10." Magnitude can be thought of as simply the "value" or "amount" of any physical quantity.a = 26 lb
Angle made by the vector 'a' = θ1 = 45o
Component of vector 'a' in the X-direction = ax = aCosθ1 = (26)Cos(45) = 18.38 lb
Component of vector 'a' in the Y-direction = ay = aSinθ1 = (26)Sin(45) = 18.38 lb
b = 12 lb
Angle made by the vector 'b' = θ2 = 30o
Component of vector 'b' in the X-direction = bx = bCosθ2 = (12)Cos(30) = 10.39 lb
Component of vector 'b' in the Y-direction = by = -bSinθ2 = -(12)Sin(30) = -6 lb
Let the resultant vector be 'c'
Component of vector 'c' in the X-direction = cx
cx = ax + bx
cx = 18.38 + 10.39
cx = 28.77 lb
Component of vector 'c' in the Y-direction = cy
cy = ay + by
cy = 18.38 + (-6)
cy = 12.38 lb
c=104)2 + (cy)
c= (28.77)2 + (12.38)2
c = 31.3 lb
Angle made by vector 'c' = θ
Tanθ =
Tanθ = 12.38 28.77
θ = 23.3o
a) Magnitude of the resultant vector = 31.3 lb
b) Angle of the resultant vector = 23.3o
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THE COMPLETE QUESTION IS -
Find the magnitude of the resultant force and the angle it makes with the positive x-axis. (Let a = 26 lb and b = 12 lb. Round your answers to one decimal place.)
What is the value of x
Answer: 68
Step-by-step explanation: do 75+37 which equals 112 then subtract 180 by 112 which equals 68
hope this helps
Answer:
A
Step-by-step explanation:
the sum of the 3 angles in a triangle = 180° , then
x + 37° + 75° = 180° , that is
x + 112° = 180° ( subtract 112° from both sides )
x = 68°
i need help in algebra gang i pay 30 a month help mee
Answer:
2c+2
The number that will go in the green box is 2.
Step-by-step explanation:
3c-1-c+3
Combine the like terms.
3c-1-c+3=2c+2
Hope this helps!
Please mark as brainliest if correct!
2) How many distinguishable letter arrangements can be made from the letters in:
a) FLUKE?
b) PROPOSE?
Answer:
for "FLUKE" its 5! = 120
and "PROPOSE" its 7! /2!×2! = 1260
Step-by-step explanation:
"FLUKE" has no repeating letters.
"PROPOSE" has two repeating letters.
we divide by the repeating letters like I did on "PROPOSE" .
THANK YOU.
can someone help me solve this problem?
Answer:
no
Step-by-step explanation:
x=5
5(5+2)=35
8(5)-3=37
37 does not equal 35
[tex]Answer: Q\ is\ not\ midpoint\ of\ \overline {PR}[/tex]
Step-by-step explanation:
[tex]\displaystyle\\\overline {PQ}+\overline {QR}=\overline {PR}\\5(x+2)+(8x-3)=72[/tex]
Expand the parentheses on the left side of the equation:
x(5)+2*(5)+8x-3=72
5x+10+8x-3=72
13x+7=72
13x+7-7=72-7
13x=65
Divide both parts of the equation by 13:
x=5
Hence,
5(5+2)=
5(5)+2(5)=
25+10=
35
8(5)-3=
40-3=
37
35≠37
True/False: Negative numbers closed under subtraction.
Provide an example if false.
The statement is false .
let ; n=-5
m=-6
n - m= -5 -( -6 )
= -5 + 6
= 1
which is not a negative real number .
therefore it shows that negative real number are not closed under substrsction.
the process or skill of taking one number or amount away from another.
Example: 7-5=2
7 is a minuend
5 is a subtrahend
and 2 is a differenceSubtraction is an arithmetic operation that represents the operation of removing objects from a collection.
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Free watermelon mint recipe
Watermelon Mint Recipe
Ingredients:
1 ½ cups fresh lemon juice
1 cup sugar
4 cups water
2 cups watermelon juice
½ cup roughly chopped mint leaves
Ice
Instructions:
Squeeze and strain lemons into a pitcher.
Stir in sugar until sugar is completely dissolved.
Add water and mint leaves and stir.
Pour in watermelon juice (if using whole watermelon, puree it first then run it through a strainer).
Garnish with lemon slices, mint leaves, or watermelon.
Drink up!
Answer:Sounds delicious
Step-by-step explanation:
Sounds nice, ill make this
Find the length of a picture frame whose width is 3 inches and whose proportions are the same as a 9-inch wide by 15-inch long picture frame.
Answer:
The length is 5.
Step-by-step explanation:
Since the proportions are the same, 3 is 3 times less than 9. The same applies to 15, which 3 times less would be 5. It has a ratio of 3:5.
Given the check digit is 3, find the missing number X for the Mater card number 5164 2X13 2705 0183?
SHOW WORK . please help!
Answer:
9
Step-by-step explanation:
So there's 3 1's, 2 2's, 2 3's, 1 4, 2 5's, a 6, a 7, an 8, 2 0's, and no 9's.
what is the value of a?
A.-16
B.-3
C.3
D.16
Answer:
Which equation do I refer to?
Step-by-step explanation:
A tank truck fills the gas stations reservoir at the rate of 10 1/4 gallons per minute.if the reservoir was empty and it is now 41 gallons full how long has the tanker been filling the reservoir
The tanker has been filling the reservoir for 4 minutes given that it fills at a rate of 10 1/4 gallons per minute.
Rate refers to the relationship of two quantities of different units. Usually, it is a measure or quantity of something per unit time.
rate = amount / time
If a tank truck fills the gas station's reservoir at the rate of 10 1/4 gallons per minute, and if the reservoir is empty at the start and become 41 gallons full, we can determine how long the tanker has been filling the reservoir by dividing the final amount by the rate.
time = amount / rate
where amount = 41 gallons
rate = 10 1/4 gallons per minute
time = 41 gallons / 10 1/4 gallons per minute
time = 4 minutes
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1 of 6
01:52 / 08:00
When this expression is simplified, what is my final answers
-5(2x - 5)
O 10x + 25
O 52x - 25
O-7x + 25
O-10x + 25
Answer:
-10x + 25
Step-by-step explanation:
We will distribute the - 5 in to 2x which is - 10x
Then distribute - 5 to - 5 which is 25
The value of 5x +3=20
Answer:
x = 17/5
Step-by-step explanation:
5x + 3 = 20
5x + 3-3 = 20 - 3
5x = 17
divide both by 5
Find the equation of the linear function represented by the table below in slope-
intercept form.
Answer: y =
X
y
0
-8
1
2
3 4
28
1 10 19
Submit Answer
Answer:
xxx 20
Step-by-step explanation:
(c) Solve the equation 7x³ +28x² = 0
Answer:
x = - 4 , x = 0
Step-by-step explanation:
7x³ + 28x² = 0 ← factor out 7x² from each term on the left side
7x²(x + 4) = 0
equate each factor to zero and solve for x
7x² = 0 ⇒ x² = 0 ⇒ x = 0
x + 4 = 0 ⇒ x = - 4
-4/7+ 2/7x - 14x+4/7
Answer:
-96/7x or 13.714x
Step-by-step explanation:
-4/7+ 2/7x - 14x+4/7
first we do
4/7-4/7 which is zero, so we can cancel those out.
then we do
2/7x-14x ( or you can do -14x+2/7, it’s the same thing
use your calculator to make this easier. if you look you’ll be able to find a fraction button on most
after we do 2/7x-14x , we get -96/7x
if you want it in a fraction just divide and you’ll get -13.714x
A sample of hamburger had a total mass of 200. g, of which 30.0 g was found to be fat. what is the percent of fat in this hamburger sample?
The percentage of fat in this hamburger sample is 15 %.
What is percentage ?Percentage is the value per hundredth.
According to the given question a sample of hamburger had a total mass of 200. g, of which 30.0 g was found to be fat.
To find what percentage of the hamburger contains fat we put amount of fat in the numerator and total amount on the denominator and multiply this fraction by 100 to obtain the result in terms of percentage.
∴ (30/200) × 100
= 3000/200
= 30/2
= 15 %.
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Help? Anyone pls. I'd give brainliest
Answer:
3/2
Step-by-step explanation:
xy= -2 X -3
= 6
z = 4
so xy/z is 6/4 which is 3/2.
To pay for a home improvement project that totals $9,000, Genesis is choosing between taking out a simple interest bank loan at 9% for 3 years or paying with a credit card that compounds monthly at an annual rate of 18% for 7 years. Which plan would give Genesis the lowest monthly payment?
The monthly credit card payment would be $295, which is lower than the monthly payment on the bank loan.
The monthly payment on a bank loan would be $272.50, which is lower than the monthly credit card payment.
The monthly payment on a bank loan would be $317.50, which is lower than the monthly credit card payment.
The monthly credit card payment would be $374.21, which is lower than the monthly payment on the bank loan.
well, first off, let's see how much each one costs per month.
so, hmmm if she goes with the Bank loan at 9% for 3 years
[tex]~~~~~~ \textit{Simple Interest Earned Amount} \\\\ A=P(1+rt)\qquad \begin{cases} A=\textit{accumulated amount}\\ P=\textit{original amount deposited}\dotfill & \$9000\\ r=rate\to 9\%\to \frac{9}{100}\dotfill &0.09\\ t=years\dotfill &3 \end{cases} \\\\\\ A=9000[1+(0.09)(3)] \implies \boxed{A = 11430}[/tex]
now, that's for 36 months, so she'd be owing the Bank per month [tex]\cfrac{\stackrel{total}{11430}}{\underset{months}{36}}~~ = ~~\text{\LARGE 317.5}[/tex]
now let's take a look at the Credit Card's loan at 18% for 7 years
[tex]~~~~~~ \textit{Compound Interest Earned Amount} \\\\ A=P\left(1+\frac{r}{n}\right)^{nt} \quad \begin{cases} A=\textit{accumulated amount}\\ P=\textit{original amount deposited}\dotfill &\$9000\\ r=rate\to 18\%\to \frac{18}{100}\dotfill &0.18\\ n= \begin{array}{llll} \textit{times it compounds per year}\\ \textit{monthly, thus twelve} \end{array}\dotfill &12\\ t=years\dotfill &7 \end{cases} \\\\\\ A=9000\left(1+\frac{0.18}{12}\right)^{12\cdot 7} \implies A \approx \boxed{31433.31}[/tex]
now, in 7 years there are 84 months, thus [tex]\cfrac{\stackrel{total}{31433.31}}{\underset{months}{84}}\approx \text{\LARGE 374.21}[/tex]
so, the Bank will give her a better deal per month, and to be honest altogether.
The plan with simple interest will give the lowest monthly repayment.
The monthly payment on a bank loan would be $317.50, which is lower than the monthly credit card payment.
Option C is the correct answer.
What are simple interest and compound interest?Simple interest is a method to calculate the amount of interest charged on a sum at a given rate and for a given period of time.
Compound interest is the interest that is made from the principal and the interest as well in consecutive years.
We have,
Simple interest:
Principal = $9000
Rate = 9%
Time = 3 years
Simple interest:
= P x R x T / 100
= 9000 x 9 x 3 / 100
= 2430
Amount = simles interest + principal
A = 9000 + 2430 = $11430
3 years = 36 months
Monthly payment = 11430 / 36 = $317.5
Compound interest:
Principal = $9000
Rate = 18%
Time = 7 years
A = P [tex](1 + \frac{18}{100}) ^{7}[/tex]
A = 9000 [tex](1 + 0.18) ^{7}[/tex]
A = 9000 x3.19
Amount = $28,710
7 years = 84 months
Monthly payment = 28710 / 84 = $341.78
Thus,
The plan with simple interest will give the lowest monthly repayment.
The monthly payment on a bank loan would be $317.50, which is lower than the monthly credit card payment.
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can someone answer this please, thank you
Answer:
9x
Step-by-step explanation:
EF = 3x
FG is three times longer ....then FG = three * EF = 3 * 3x = 9x
How long will it take you to bike 225 miles at
a
speed of 15 miles per hour?
Am I supposed to divide
Answer:
15
Step-by-step explanation:
225/15
10.) The height of a tree trunk is 20 meters, and the base has a diameter of 1 meter. If the tree has the mass
420, what is the density of the tree?
26.27 kgm⁻³
Density is the ratio of mass to volume
Density = Mass / Volume
Let us assume tree is a cylinder,
d= 1
r = d/2 = 0.5 m
h= 20 m
m= 420kg
Volume = π r²h
= 22/7 x o.25 x 20
Density = mass / volume
= 420 / 22/7 x o.25 x 20
= 26.27 kgm⁻³
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You arrive in Tokyo with $320. How many yen can you buy ?
Answer:
You can buy 31788.8 with $320.
Step-by-step explanation:
To calculate this, we know that yen is 0.01007 dollars per foreign. We also know that 1 dollar = 99.34 So, therefore you will multiply 320 * 99.34 and you will get 31788.8 Yen.
I hope this helps and have a good day! :D
