Answer:
11
Step-by-step explanation:
if there are twins born every 250 births take your large number (2,750) and divide it by 250 to get your answer
There are 11 pairs of twins at a school with 2750 students.
What is division?Repetitive subtraction is the process of division. It is the multiplication operation's opposite. It is described as the process of creating equitable groups. When dividing numbers, we divide a larger number down into smaller ones such that the larger number obtained will be equal to the multiplication of the smaller numbers.
Given identical twins happen once in 250 births,
total number of students in school = 2,750
to find the pair of twins divide the total number of students by 250
= 2750/250 = 11
Hence there are 11 pairs of twins in 2,750 students.
Learn more about division;
https://brainly.com/question/21416852
#SPJ2
Find the variance for the given data. Round your answer to one more decimal place than the original data. The billing rates for six dental procedures are listed below: $663 $273 $410 $622 $174 $374
Answer:
The variance is 30698.6
Step-by-step explanation:
The billing rates for six dental procedures are listed below:
$663
$273
$410
$622
$174
$374
The mean is given by:
[tex]\bar X=\frac{663+273+410+622+174+374}{6}=\frac{2516}{6}=419.333[/tex]
The variance is given by:
[tex]\sigma^2=\frac{\sum(x-\bar x)^2}{n}[/tex]
[tex]\sigma^2=\frac{(663-419.333)^2+(273-419.333)^2+(410-419.333)^2+(622-419.333)^2+(174-419.333)^2+(374-419.333)^2}{6}[/tex]
[tex]\sigma^2=30698.56[/tex]
Therefore the variance is 30698.6
The variance for the given set of data points, which are billing rates for dental procedures, is $35439.73. The variance is calculated as the average of the squared differences from the mean.
Explanation:The subject of this question is the variance, which is a statistical characteristic used in mathematics to measure how much individual numbers in a set diverge from the average. So, to find the variance for this given data follow these steps:
Find the mean of the data. This is done by adding all the numbers together and then dividing by the number of numbers. The mean in this case is $427.67 ($(663 + 273 + 410 + 622 + 174 + 374) / 6$). Subtract each number in the set by the mean, and then square the result. The squared differences are $55427.23$, $23856.23$, $312.23$, $37804.23$, $64368.23$, and $2870.23$, respectively. The variance is the mean of these squared differences. Adding them all up and dividing by 6 (the total number of numbers in the set) gets us a variance of $35439.73$ rounded to two decimal places. Learn more about Variance here:https://brainly.com/question/33654267
#SPJ3
Select the correct graph of −4x + 3y = 6. (1 point)
Answer:
[tex]Line\ passing\ through\ (-1.5,0)\ and\ (0,2).\\\\Correct\ graph\ is\ attached.[/tex]
Step-by-step explanation:
[tex]The\ given\ equation\ represents\ a\ line\\\\[/tex]
y-intercept:
[tex]Substitute\ x=0\\\\-4\times 0+3y=6\\\\3y=6\\\\y=\frac{6}{3}\\\\y=2\\\\The\ line\ passes\ through\ the\ point\ (0,2).[/tex]
x-intercept:
[tex]Substitute\ y=0\\\\-4x+3\times 0=6\\\\-4x=6\\\\x=-\frac{6}{4}\\\\x=-1.5\\\\The\ line\ passes\ through\ the\ point\ (-1.5,0).[/tex]
The correct graph is attached.
Fractions to percentage
Answer:
If u want to change fraction into percentage then multiply it with 100.for eg.83/90*100%
The diameter of the circle above is 32 in. What is the circumference of the circle? Use = 3.14.
Answer:
8.3776 this is the circumference
Step-by-step explanation:
Answer:
the answer is 100.48 yd
What is the slope of the line represented by the equation f(x) = -3x + 7?
Answer:
Step-by-step explanation:
A food stand sold hamburgers, ice cream cones, and hot dogs at a football game. Hamburgers were sold for $3.25, ice cream cones were sold for $2.50, and hot dogs were sold for $1.75. The total number of hamburgers, ice cream cones, and hot dogs sold was 104, and the total amount of money from these items was $248.75. If $80.50 was made just from selling hot dogs, how many ice cream cones were sold?
Answer y=27
27 ice cream cones were sold
Select the appropriate terms from the drop down boxes below to correctly complete the statement.
The quadrilaterals are similar because quadrilateral FGHJ is the image of quadrilateral ABCD under a dilation with a center of
Answer: The quadrilaterals are similar because quadrilateral FGHJ is the image of quadrilateral ABCD under a dilation with a center of.....
all of it! it school! very inappropriate!
Step-by-step explanation: it looks like it's inappropriate
Answer:
all
Step-by-step explanation:
Which graph represents the solution set of the compound inequality Negative 4 less-than-or-equal-to 3x minus 1 and 2 x + 4 less-than-or-equal-to 18?
A number line goes from negative 10 to positive 10. A closed circle appears at negative 1 and positive 7. The number line is shaded from negative 1 to positive 7.
A number line goes from negative 10 to positive 10. A closed circle appears at negative 7 and positive 1. The number line is shaded from negative 7 to positive 1.
A number line goes from negative 10 to positive 10. A closed circle appears at negative 1. The number line is shaded from negative 1 toward negative 10.
A number line goes from negative 10 to positive 10. A closed circle appears on positive 7. The number line is shaded from positive 7 toward positive 10.
Answer:
A number line goes from negative 10 to positive 10. A closed circle appears at negative 1 and positive 7. The number line is shaded from negative 1 to positive 7.
Step-by-step explanation:
The set of compound inequality are - 4 ≤ 3x - 1 and 2x + 4 ≤ 18.
Now, - 4 ≤ 3x - 1
⇒ 3x ≥ - 3
⇒ x ≥ - 1
And, 2x + 4 ≤ 18
⇒ 2x ≤ 14
⇒ x ≤ 7
Therefore, the solution will be 7 ≥ x ≥ - 1
Hence, the graph that shows the solution is 'a number line goes from negative 10 to positive 10. A closed circle appears at negative 1 and positive 7. The number line is shaded from negative 1 to positive 7'. (Answer)
Answer:
Graph A is your answer.
Step-by-step explanation:
jamal ate 1/4 bag of peanuts. his 3 friends ate equal shares of the remaining peanuts. which expression represents the peanuts that each friend ate?
Answer:
4/4-1/4 is 3/4 so 3/4 divided by 3 is 1/4 bag of peanuts per friend.
Step-by-step explanation:
To find the expression that represents the peanuts that each friend ate, start with the fraction representing the remaining peanuts after Jamal ate 1/4 bag, which is 3/4. Divide the remaining peanuts equally among the 3 friends by dividing the fraction 3/4 by 3, which gives us 1/4. Therefore, each friend ate 1/4 of the peanuts.
Explanation:To find the expression that represents the peanuts that each friend ate, we need to follow the steps:
Start with the fraction representing the remaining peanuts after Jamal ate 1/4 bag, which is 1 - 1/4 = 3/4.Divide the remaining peanuts equally among the 3 friends. This can be done by dividing the fraction 3/4 by 3, which gives us (3/4) / 3 = 1/4.Therefore, the expression that represents the peanuts that each friend ate is 1/4.
Which expression is equivalent to StartRoot 200 EndRoot?
2 StartRoot 10 EndRoot
10 StartRoot 2 EndRoot
10 StartRoot 20 EndRoot
100 StartRoot 2 EndRoot
Answer:
b) √200 = 10√2
Step-by-step explanation:
Here, the given expression is: √200
Simplifying the given expression, we get:
200 = 2 x 2 x 2 x 5 x 5
⇒ 200 = (2)² x (5) ² x 2
Taking ROOT both sides, we get:[tex]\sqrt{200} = \sqrt{(2)^{2} \times (5)^{2} \times 2}\\\implies \sqrt{200} = \sqrt{(2)^{2} } \times \sqrt{(5)^{2} } \times \sqrt{(2) } = 2 \times 5 \times \sqrt{2}\\ = 10 \sqrt {2}\\\implies \sqrt{200} = 10 \sqrt {2}[/tex]
Hence, √200 = 10√2
Answer:
B is the answer
Step-by-step explanation:
B for e2020
Greatest Common Factor (GCF)
1. 12a - 27
Answer:
3
Step-by-step explanation:
The factors of 12a are ...
2×2×3×a
The factors of 27 are ...
3×3×3
The only common factor is 3.
_____
12a -27 = 3(4a -9)
Final answer:
The Greatest Common Factor (GCF) of the expression 12a - 27 is 3, since 3 is the highest number that divides evenly into both 12 and 27 with no common variables present.
Explanation:
To find the Greatest Common Factor (GCF) of the expression 12a - 27, you look for the highest number and any variables that divide evenly into both terms. Note that 12 and 27 can both be divided by 3. Therefore, 3 is a common factor. Since there are no more common variables or higher factors, the GCF of 12a and 27 is simply 3.
To calculate the GCF, divide each term by 3:
12a ÷ 3 = 4a
27 ÷ 3 = 9
While the expression is factored as 3(4a - 9), the GCF is just the number 3.
Suppose y varies directly with x , if y =-14 when x = -7 , what is the value of x when y =22
Two vertices of a right triangle have coordinates (9, 1) and (6, -1).
Select each ordered pair that could be the coordinates of the third vertex.
(6,9)
(6, 1)
(1, -1)
(9, -1)
Answer:
(6,1), (9,-1)
Step-by-step explanation:
In points (6,1) and (9,-1) a right angle can be formed.
Two arcs of concentric circles are intercepted by the same central angle. The resulting arc length of the arc of the smaller circle is 36 ft and radius is 30 ft. The radius of thr larger circle is 45 ft. Find tye length of the corresponding arc of the larger circle.
The length of the corresponding arc of the larger circle = 54 ft.
Step-by-step explanation:
step 1 :
"Concentric circles" have same center but different radius.So, the angle formed by the arcs of the two circles with same center will also be same.step 2 :
Small circle :
Length of the arc = 36 ftRadius of the circle = 30 ftArc length = (∅/360)2πr
where,
∅ = arc angle
π = 3.14
r = radius of circle
step 3 :
Arc length = (∅/360)2[tex]\times[/tex]3.14[tex]\times[/tex]30
⇒ 36 = (∅/360)[tex]\times[/tex]188.4
⇒ ∅ = 36[tex]\times[/tex]360 / 188.4
∅ = 68.79
step 4 :
Large circle :
Radius of large circle = 45 ftThe arc angle, ∅ = 68.79Arc length = (∅/360)2πr
= (68.79/360) 2[tex]\times[/tex]3.14[tex]\times[/tex]45
Arc length = 54 ft
find the slope of the line that contains the points named A(3,2) B(7,8)
Answer:
Step-by-step explanation:
slope=y₂-y₁/x₂-x₁
[tex]\frac{8-2}{7-3}=\frac{6}{4}\\\\=\frac{3}{2}[/tex]
If you knew that two angles were complementary and were given the measure of one of those angles, would you be able to find the measure of the other angle? Explain your reasoning.
If we knew that two angles were complementary and were given the measure of one of those angles, then we can find the measure of the other angle by subtracting the given measure of one angle from 90
Solution:
Given that,
If you knew that two angles were complementary and were given the measure of one of those angles, would you be able to find the measure of the other angle
Yes we can find the measure of another angle
Complementary angles:
Complementary angles are two angles whose sum is 90 degrees
Therefore, if measure of one angle is given, then we can find the measure of another angle
Measure of another angle = 90 - measure of one angle
Example:
If x and y are complementary angles
Given that measure of angle x is 45 degrees
Then we can say,
According to complementary angles definition
x + y = 90
45 + y = 90
y = 90 - 45
y = 45
Thus measure of other angle y is found to be 45 degrees
Knowing the measure of one angle in a pair of complementary angles allows you to find the measure of the other angle because the sum of their measures is equal to 90 degrees.
Explanation:Yes, you would be able to find the measure of the other angle. This is because in geometry, two angles are said to be complementary if the sum of their measures is equal to 90 degrees. Thus, knowing the measure of one angle allows you to find the measure of the other angle by subtracting the known angle from 90.
For instance, if you were told one angle measures 35 degrees and you know the two angles are complementary, you could calculate the measure of the other angle as follows: 90 - 35 = 55 degrees. So, the other angle measures 55 degrees.
Learn more about Complementary Angles
#SPJ3
Round 227 to the nearest 100
.........................................................................................
Answer:
...................................../................................................................
Step-by-step explanation:
......................................................................................
Nancy opened a savings account 7 years ago. The account earns 5% interest, compounded quarterly. If the current balance is $1,000.00, how much did she deposit initially?
The amount deposited initially is $ 706.22
Solution:
The formula for amount using compound interest is given as:
[tex]A = p(1+\frac{r}{n})^{nt}[/tex]
Where,
A = the future value of the investment/loan, including interest
P = the principal investment amount (the initial deposit or loan amount)
r = the annual interest rate (decimal)
n = the number of times that interest is compounded per unit t
t = the time the money is invested or borrowed for
From given,
t = 7 years
A = 1000
P = ?
[tex]r = 5 \% = \frac{5}{100} = 0.05[/tex]
n = 4 (since compounded quarterly)
Substituting the values we get,
[tex]1000 = p(1+\frac{0.05}{4})^{4 \times 7}\\\\1000 = p(1+\frac{0.05}{4})^{28}\\\\1000 = p(1+0.0125)^{28}\\\\1000 = p(1.0125)^{28}\\\\1000 = p \times 1.4159923\\\\p = \frac{1000}{1.4159923}\\\\p = 706.2185 \approx 706.22[/tex]
Thus amount deposited initially is $ 706.22
a pilot is flying at 10,000 feet and wants to take the plane up to 20,000 feet over the next 50 miles. what should be his angle of elevation to the nearest
The angle of elevation is 2.17°
Step-by-step explanation:
First change value in miles to value in feet
1 mile =5280 ft
50 miles = 5280*50 =264000 ft
Apply the formula for tangent of an angle where the opposite side is 10,000 ft and the adjacent side is 264000 ft
Tan Ф = O/A
= 10,000/264000
=0.03787878787
Tan ⁻(0.03787878787) = 2.17°
Learn More
To find angle of elevation:https://brainly.com/question/9817377
Keywords : pilot, flying,plane,feet,elevation
#LearnwithBrainly
Analyze the following pattern
1, 2, 5, 10, 17,....
what's the 8th term of the pattern
Answer:
50
Step-by-step explanation:
Add the next odd number to get the next term
1
1+1=2
2+3 =5
5 + 5 = 10
10 + 7 = 17
17 + 9 = 26
26 + 11 = 37
37 + 13 = 50
3b+14 b=0
random stuff cuz need to reach limit
[tex]\text{Hey there!}[/tex]
[tex]\mathsf{If\ b = 0\ then\ replace\ b\ in\ the\ equation\ with\ 0\ to\ make\ it\ easier\ to\ solve}[/tex]
[tex]\mathsf{New\ equation: 3(0)+ 14}[/tex]
[tex]\mathsf{3(0) + 14=\ ?}\\\mathsf{3(0) = 0}\\\mathsf{0+14=?}\\\mathsf{0+14=14}\\\boxed{\boxed{\bf{Answer:\mathsf{14}}}}\checkmark[/tex]
[tex]\text{Good luck on your assignment and enjoy your day!}[/tex]
~[tex]\frak{LoveYourselfFirst:)}[/tex]
B = 0
You solved it thx for the points :v
12. Write an equation to solve for the following strip diagram:
421
158
628
Equation:
on:
Answer:
[tex]c + 421 + 158 = 628[/tex]
[tex]c + 579 = 628[/tex]
[tex]c = 49[/tex]
The area of a square garden is 98m squared. How long is the diagonal?
Answer:
diagonal is 14 m
Step-by-step explanation:
We are given;
The area of a square garden as 98 m²We are required to determine the diagonal of the square.
We know that;
Area of a square = s² , where s is the side of the square
Therefore;
s² = 98
Thus;
s = √98
To get the diagonal
s² + s² = diagonal squared
Hence;
Diagonal squared = (√98)² + (√98)²
= 98 + 98
= 196
Thus;
Diagonal = √196
= 14 m
Thus, the diagonal is 14 m
Sales Tax
nbsp Selling Price nbsp
nbsp Rate of Sales Tax nbsp
nbsp Sales Tax nbsp
$70.00
3%
?
The sales tax for an item priced at $70.00 with a tax rate of 3% is $2.10. This can be found by multiplying the selling price by the tax rate.
Explanation:To find the amount of sales tax, you can multiply the selling price by the rate of sales tax. In your case, the selling price is $70.00 and the rate of sales tax is 3%. So, your calculation will look like this: $70.00 * 0.03 (because 3% is the same as 0.03 when used in a calculation). The result of this multiplication will be the amount of sales tax. So, the sales tax for an item which costs $70.00 at a tax rate of 3% is $2.10.
Learn more about Sales Tax here:https://brainly.com/question/29442509
#SPJ12
How to find the solution to an f(x)=g(x) equation
1.) Set the equation equal to each other
2.) Solve for y by itself and simplify the equation
3.) Solve for when x=0 to find the x-value
4.) Plug that x-value back into one of the equation to find the y-value.
What is 8/12 as a whole number & unit fraction
Answer:
1/4
Step-by-step explanation:
The fraction 8/12 simplifies to 2/3. The whole number is 0, and the unit fraction is 2/3, which can be expressed as the sum of two unit fractions, 1/2 and 1/6.
Explanation:The fraction 8/12 can be simplified to a whole number and a unit fraction. First, divide both the numerator and denominator by their greatest common divisor, which is 4. This yields the simplified fraction 2/3. Thus, the whole number is '0' and the unit fraction is '2/3' as 2/3 is less than 1 and cannot be represented as a whole number. A unit fraction is a fraction where the numerator is '1'. Although 2/3 is not a unit fraction itself, it can be expressed as the sum of two unit fractions, '1/2 + 1/6'.
Learn more about Unit Fractions here:https://brainly.com/question/33576019
#SPJ2
write an equation of the line with a slope of 3 and a y-intercept of -3.
Answer:
solution is
y + 3 = 3(x - 0)
y + 3 = 3x - 0
y = 3x - 3
solve the following system of equations
-2x+y=1
-4x+y=-1
Answer:
x = 1
y =
Step-by-step explanation:
-2x + y=1
-4x + y=-1
-2 (2) x + (2) y = (2) 1 (multilply by 2)
-4x + y=- 1
-4x + 2y = 2
-4x + y = -1
minus side by
y = 3
x =
Answer:
(1, 3).
Step-by-step explanation:
-2x + y = 1
-4x + y = -1 Subtract :
-2x - (-4x) = 1 - (-1)
-2x + 4x = 2
2x = 2
x = 1.
Substitute x = 1 in the first equation:
-2(1) + y = 1
-2 + y = 1
y = 1 + 2
y = 3.
Is -8-2(3+2n)+7n equivalent to -30-13n. Explain why or why not.
No, -8 - 2(3 + 2n) + 7n is not equivalent to -30 - 13n
Step-by-step explanation:
Let us revise the operation of the negative and positive numbers
(-) + (-) = (-)(-) × (-) = (+)(-) + (+) = the sign of greatest [(-) if the greatest is (-) or (+) if the greatest is (+)](-) × (+) = (-)(-) - (+) = (-)(+) - (-) = (+)∵ The expression is -8 - 2(3 + 2n) + 7n
- Simplify it
∵ 2(3 + 2n) = 2(3) + 2(2n) = 6 + 4n
∴ -8 - 2(3 + 2n) + 7n = -8 - (6 + 4n) + 7n
- Multiply the bracket by (-)
∴ -8 - (6 + 4n) + 7n = -8 - 6 - 4n + 7n
- Add the like terms
∴ -8 - (6 + 4n) + 7n = (-8 - 6) - 4n + 7n
∴ -8 - (6 + 4n) + 7n = -14 + 3n
∴ -8 - 2(3 + 2n) + 7n is equivalent to -14 + 3n
∵ -14 + 3n ≠ -30 - 13n
∴ -8 - 2(3 + 2n) + 7n is not equivalent to -30 - 13n
No, -8 - 2(3 + 2n) + 7n is not equivalent to -30 - 13n
Learn more:
You can learn more about the directed numbers in brainly.com/question/10364988
#LearnwithBrainly