ghyc yh fffffjmnnnnnnnnythcgn hyStep-by-step explanation:
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The Bradenton Post polled 1,356 adults in the city to determine whether they wet their toothbrush before they put toothpaste on it. Of the respondents, 54% said they wet it first. Suppose 68% of all adults actually wet their toothbrush first. What are the mean and standard deviation of the sampling distribution?
Answer:
deviation = -95.50147493 mean = 61
Step-by-step explanation:
54% wet there brushes first
suppose 68% wet there brushes what is the mean
mean: a mean is where you add both numbers together to get a total then divide by how many numbers you added for now we wont need the amount of people we just need the percentages for this
54 + 68 = 122
we added to numbers so well divide by 2
122 divided by 2 or 122/2 is equal to 61
61 is our mean
standard deviation : this is were you take the known average 1356 adults and subtract the mean
1356- 61 = 1295 then divide by 1356 and times by 100
if the number is positive then the mean is higher than expected but luckily its a negative so its -95.50147493
Find the product 0 . 67 × 0 .3
jack bought 4 bagels for 3.00. how many bagels can he buy for 4.50?
Answer:
The answer is
6 bagelsStep-by-step explanation:
In order to solve this problem we use ratio and proportion
From the question
He used 3.00 to buy 4 bagels
Then 4.50 will be
[tex] \frac{4.5 \times 4}{3} \\ = \frac{18}{3} [/tex]
We have the final answer as
6 bagelsHope this helps you
HELP PLEASE HELP PLEASE HELP PLEASE
Answer:
the correct answer would be D
Step-by-step explanation:
Good Job, Your answer is correct.
PLEASE ASAP Find the value of x
Answer: this is in a fraction: X = 16/5, decimal form: x = 3.2, and in a mix number: x = 3 1/5
Step-by-step explanation:
Answer:
The letter "x" is often used in algebra to mean a value that is not yet known. It is called a "variable" or sometimes an "unknown". In x + 2 = 7, x is a variable, but we can work out its value if we try! A variable doesn't have to be "x", it could be "y", "w" or any letter, name or symbol.
Step-by-step explanation:
Solve: (-4) - 16 ÷ (-4) × 10 + 20
ivan and jeff buy a package of 8 pen for 4.00. ivan want 5 of the pen. how many should ivan pay?
Answer:
$2.50
Step-by-step explanation:
Let's set up a proportion using the following setup.
price / pens = price / pens
We know that it costs $4.00 for 8 pens.
$4.00 / 8 pens = price / pens
We don't know how much it costs for 5 pens. Therefore, we can say it costs $x for 5 pens.
$4.00 / 8 pens = $x / 5 pens
4/8=x/5
We want to solve for x (the cost for 5 pens). Therefore, we must get x by itself on one side of the equation. x is being divided by 5. The inverse of division is multiplication, so multiply both sides of the equation by 5.
5*(4/8)=(x/5)*5
5*(4/8)=x
5*0.5=x
2.5=x
x= $2.50
Ivan should pay $2.50 for 5 pens.
Answer:
4.00
Step-by-step explanation:
Right triangle XYZ, with vertex Y at (-3, 0), is rotated clockwise 180° about the origin. Which of the following rotations is equivalent to 180° clockwise rotation about the origin? clockwise 360° counterclockwise 180° counterclockwise 360° clockwise 270°
Answer:
the rule for rotation 180 degrees clockwise around the origin is:
(x,y) --------> (-x,-y)
(-3,0) --------> (-(-3),0)
(-3,0) --------> (3,0)
rotation counterclockwise 180 degrees is the same as rotation 180 degrees clock wise:
(x,y) -------->(-x,-y)
Answer:
the answer is counterclockwise 180
Step-by-step explanation:
HELLLLPPPP I WILL MARK BRAINLESTTTT
Which measurement represents the greatest length? 1 meter 27 inches 98 centimeters 6 feet?
Answer:
6 ft is the greatest length
Step-by-step explanation:
1 meter= 3.2 ft
1 meter= 100 centimeters
1 meter= 39.4 inches
6-3.2 = 2.8 which runs over
Hope this helps
Answer:
6 feet
Step-by-step explanation:
4/5 y = 8 , how do we solve pls help fast its urgent, I will mark u brainliest
Answer:
y = 10
Step-by-step explanation:
4/5 y = 8
4/5 y * 5/4 = 8 * 5/4 multiply by reciprocal
y = 10
Answer: y=10
Step-by-step explanation:
times each side by 5 so you're left with 4y=40
divide wach by 4 and then you got the answer
Simplify ) 3/4 of 8/6
Answer:
First of all, to calculate what a fraction of a fraction is, we multiply them:
[tex]\frac{3}{4}*\frac{8}{6}[/tex] = [tex]\frac{3*8}{4*6}[/tex] = [tex]\frac{24}{24}[/tex] = 1
So now we know that three quarters of 8/6 is equal to 1.
We could also simplify 8/6 dividing both numerator and denominator by the same number:
[tex]\frac{8}{6}=\frac{\frac{8}{2}}{\frac{6}{2}}=\frac{4}{3}[/tex]
And see that 3/4 of 4/3 is also equal to 1:
[tex]\frac{3}{4}*\frac{4}{3}=\frac{3*4}{4*3}=\frac{12}{12}[/tex] = 1
Answer: 1
Step-by-step explanation:
When you come across any question that states [a of b] means a × b.
If you are still confused, I will provide some examples.
1/2 of 1/2= 1/4 (1/2 × 1/2=1/4)3/5 of 5= 3 (3/5 × 5=3)This also applies to your question.
3/4 of 8/6= 3/4 × 8/6=3/4 × 4/3=1Hope this helps!! :)
Please let me know if you have any question
Write 0.192 and 0.042 as a fraction. Write 189/1000 and 3/1000 as a decimal.
Answer:
0.192 = 24/125
0.042 = 21/500
189/1000 = 0.189
3/1000 = 0.003
As fraction
0.192 =
[tex] \frac{192}{1000} = \frac{24}{125} [/tex]
0.042 =
[tex]\frac{42}{1000} = \frac{21}{500} [/tex]
As decimal
189/1000 = 0.189
3/1000 = 0.003
The length of a rectangle is 3ft more than twice the width, and the area of the rectangle is 54ft^2. Find the dimensions of the rectangle.
Answer: Let length = 2x + 3
Let width = x
Area = 54 ft2
length × width = Area
x(2x + 3) = 54
2x2 + 3x = 54
2x2 + 3x - 54 = 0
(2x - 9)(x + 6) = 0
x = 9/2 and x = -6
x = 4.5 and x = -6
We accept x = 4.5 because length cannot be a negative value. Substituting this value into the dimensions:
width = 4.5 ft
length = 2(4.5) + 3 = 9 + 3 = 12 ft
Step-by-step explanation:
A recipe for making 3 dozen muffins requires 1 1/2 cups of flour. How many cups of flour are required to make 5 dozen of the same muffins? A) 2 cups B) 2 1/2 cups C) 3 cups D) 3 1/2 cups
Estimate: 4.1 * 7.8 *2.3
Answer:
yea yeah
Step-by-step explanation:
singing challenge
Last month I had 8 guppies. This month I have 20 guppies. What is the percent of increase in guppies from last month to this month?
Answer: 150% increase
Step-by-step explanation:
percent of increase: new/old × 100%-100%
--------------
new/this month: 20 puppies
old/last month: 8 puppies
new/old×100%-100%
=20/8×100%-100%
=2.5×100%-100%
=250% -100%
=150% increase
Hope this helps!! :)
Please let me know if you have any question
i need help with no. 18. can someone help me? like with how its solved, not just answer
Answer:
the answer is 7.22
Step-by-step explanation:
Two third of a number is greater than one third of the number by 5. The number is ________
Let's assume the number as x
→ ⅔rd of x =( ⅔)x
Now ⅔ of x is greater than ⅓ of 5 .
[tex] \sf{ \implies \: \dfrac{1}{3} \times 5 = \dfrac{5}{3} } [/tex]
[tex]\sf{ \implies \: \dfrac{2}{3} \times x > \dfrac{5}{3} } [/tex]
[tex]\sf{ \implies \: x > \dfrac{5}{3} \times \dfrac{3}{2} }[/tex]
[tex]\sf{ \implies \: x > \dfrac{5}{2} }[/tex]
So number will be greater than 5/2 .
Answer:
the answer is 10
plsss mark me brainliest
i need more brainlees
plsss help me
Step-by-step explanation:
write the pair of small triangles to be shaded for each line of symmetry.
Answer: D and E because it will be the same as the triangles next to e and d. hope this helps
Answer:
D and E because it will be the same as the triangles
Step-by-step explanation:
Alice earned $12 per hour. What equation shows the relationship between her weekly salary (w), hours per week (h), and rate per hour (r).
i need step by step explanation for thisss >33
Answer:
Step-by-step explanation:
The question says find the number eight times of a certain two digit number exceeding the number 19.The tens digit than the units digit . So,you have to multiply eight to a two digit number exceeding 19 so you find a number exceeding 19 which would have to be able to to multiply by eight to exceed the number 19
find the number eight times of a two digit number higher than the number nineteen. The tens digit than the units digit .you have to multiply 8 to a 2 digit number exceeding nineteen so you find a number exceeding ninteen which would have to be able to to times by 8 to go higher than the number nineteen
Find the value of x .
Answer:
x=32
Step-by-step explanation:
Add the 2 angles and subtract that by 180.
I would check my work just to make sure :)
Given that $a$ is an odd multiple of $7767$, find the greatest common divisor of $6a^2+49a+108$ and $2a+9$.
Answer:
888
Step-by-step explanation:
Please solve this and please explain! Thankyou!
Answer:
50
Step-by-step explanation:
When n = 6, the length is 3 * 6 + 2 = 20 and the width is 6 - 1 = 5. We know that the perimeter of the rectangle is twice the sum of its length and width. The sum of the length and width is 20 + 5 = 25 and twice that is 25 * 2 = 50.
Answer:
50
Step-by-step explanation:
At the bottom we see n = 6, that's already solved for us so now we plug it into the equation.
3n+ 2 and n - 1, When a variable is next to a number, you multiply the number of the variable and the original number together, So in this case n = 6 and we have 3n + 2, 3n = 18 (3x6) and then 18 + 2 = 20. And since n = 6, N - 1 = 5 (6-1) So we add the first sum of 3n+2 = 20 + N - 1 = 5 which gives us 25. Now that we have our sum of width and length we multiply that by 2 in order find the perimeter. 25x2 = 50.
1.5d + 8.25 = 3 + 2.25d
pls help meee
Answer:
d=7
Step-by-step explanation:
1.5d-2.25d = 3-8.25
-0.75d= -8.25
d=7
Answer:
is it 11.25?
Step-by-step explanation:
The equations of three lines are given below. Line 1: 6x-4y=6 Line 2: -2y=3x+5 Line 3: y=-2/3x+7 For each pair of lines, determine whether they are parallel, perpendicular, or neither.
Answer:
Line 1 and Line 2: Neither -- slopes are not same (one is negative one is positive)
Line 1 and Line 3: Perpendicular -- Line 3's slope is the negative reciprocal of Line 1's
Line 2 and Line 3: Neither -- different slopes
Step-by-step explanation:
Lines are parallel if they have the same slope but different y-intercept.
Lines are perpendicular if the slopes are negative reciprocals.
Select all of the following that have the same value as 30,452.
A. (3 x 1,000) + (4 x 100) + (5 x 10) + (2 x 1)
O B. (3 x 104) + (4 x 10°) + (5 x 10?) + (2 x 10')
OC. 30.000 + 400 + 50 + 2
D. thirty thousand, four hundred fifty-two
E. (3 x 10') + (4 x 10-) + (5 x 10") + (2 10')
F. thirty-four thousand, fifty-two
Answer:
d
Step-by-step explanation:
You could just do process of elimination. So for the first one if you add them all up you would get 3,452 which is not correct, for the second one would not be correct since after you do 3 times 104 you can see it is wrong, for c it is also wrong since there is a 30 not a 30,000, for d it is correct since if you write it out is is 30,452, for E it is not correct just by looking at the problem, and for F it cannot be correct since it does not be the right answer
The correct answer is thirty thousand, four hundred fifty-two.
What is expanded form?The expanded form helps us to better understand a given number. Let us take an example of the number 875294831. It is difficult to understand this number. Here an expanded form helps us to understand each of the digits based on their place value. Let us take a simple number 324 and try to find its expanded form. 324 is written in expanded form as 300 + 20 + 4. It means there are three hundred, two tens, and 4 ones in this number.
Given number:
30452
The expanded form is
=3*10000+0*1000+4*100+5*10+2*1
So, there is no match for this.
If we write in words it can be written as thirty thousand, four hundred fifty-two.
Hence, the correct option id (D).
Learn more about expanded form here:
https://brainly.com/question/17837892
#SPJ2
Larry is building a frame around a rectangular picture. He will need 40 inches of wood to do the entire frame. If the frame is 12 inches long, how wide is the frame?
Answer:
8
Step-by-step:
12+12=24
40-24= 16
there is 16 inches of wood left
16/2=8
8 inches of wood for each side of width.
Molten lava 50-feet thick cools at a rate of about 20 degrees Fahrenheit per month. What is the overall change in temperature of molten lava that is 50-feet think after four months?