Kim surveyed 80 students at her school and found that 0.65 of the students she surveyed said their favorite class is math. Another 15% of the students she surveyed reported that their favorite class is science. How many more students in the survey prefer math over science?
Plz Help me I don't understand-ish
Answers
Answer:
22%
Step-by-step explanation:
Answer:40
Step-by-step explanation:0.65 to percent
0.65x100=65%
which is 65/100x80=52 students choose mat
and 15/100x80=12 students choose science
so 40 more students choose math over science
Related Questions
Fitness mania charges 20$ to join their gym and then 15$ per month.
1. Write an equation in slope intercept form.
2. How much will it cost to belong to Fitness Mania for one year?
3. If a different gym LVAC, charges 0$ to join and 20$ a month, which gym would be the cheaper choice for one year?
Answers
Fitness mania is cheaper as $200 < $240
in regression analysis, the independent variable is typically plotted on the _____.
Answers
In regression analysis, the independent variable is typically plotted on the x-axis.
The x-axis represents the independent variable or predictor variable, which is the variable that is believed to influence or have an impact on the dependent variable. This variable is typically plotted horizontally on the graph.
For example, let's say we are studying the relationship between the amount of study time and exam scores. In this case, the independent variable would be the amount of study time, which could be measured in hours.
By plotting the amount of study time on the x-axis, we can visually analyze how it relates to the dependent variable, which is the exam scores, typically plotted on the y-axis. This helps us understand the nature and strength of the relationship between the two variables.
So, in summary, the independent variable is plotted on the x-axis in regression analysis.
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the count in a bacteria culture was 800 after 20 minutes and 1700 after 40 minutes. assuming the count grows exponentially, what was the initial size of the culture?
Answers
The culture starts out with 39 members.
Given that;
After 20 minutes and 40 minutes, a bacteria culture had an 800 and 1700 count, respectively.
To get exponential growth;
We can get growth with an exponential function,
F(t) = A₀\(e^k^t\)
Here, k is the growth constant and A₀ is the initial amount of bacteria.
Let;
800 = A₀\(e^2^0^k\) → (I)
1700 = A₀\(e^4^0^k\) → (II)
From (I) and (II);
1700 / 800 = A₀\(e^4^0^k\) / A₀\(e^2^0^k\)
17/8 = \(e^2^0^k\)
For the above equation take the natural log on both sides;
ln(17/8) = ln \(e^2^0^k\)
ln(17/8) = 20k
k = ln(17/8) / 20
To get the initial size of the culture;
From (I),
800 = A₀\(e^2^0^k\)
800 = A₀e⁰°⁰³⁷⁶ ˣ ²⁰
A₀ = 800 / 20.76
A₀ = 38.53 ≅ 39
Therefore, the initial size of the culture is 39.
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PLEASE HELP PLEASEEEEE
Answers
Answer:
pi r^2 h/3, height =6, r=10, 100*6=600pi/3=200pi
Zeke bought a 1250 bobsled on the installment plan he made a 450down payment and has to make monthly payments of 48.25for 2.5 years what is the finance charge
Answers
The Finance charge for Zeke's bobsled purchase is $197.50.
To find the finance charge for Zeke's bobsled purchase, we need to calculate the total amount he will pay in monthly payments over the 2.5-year period and subtract the initial purchase price.
Given:
Purchase price (bobsled) = $1250
Down payment = $450
Monthly payment = $48.25
Duration of payments = 2.5 years
Step 1: Calculate the total amount paid in monthly payments.
First, we need to determine the total number of monthly payments Zeke will make over 2.5 years. Since there are 12 months in a year, the total number of payments will be 2.5 years * 12 months/year = 30 payments.
Next, we calculate the total amount paid in monthly payments by multiplying the monthly payment by the number of payments:
Total monthly payments = Monthly payment * Number of payments
Total monthly payments = $48.25 * 30 = $1447.50
Step 2: Calculate the finance charge.
The finance charge is the difference between the total amount paid in monthly payments and the purchase price:
Finance charge = Total monthly payments - Purchase price
Finance charge = $1447.50 - $1250 = $197.50
Therefore, the finance charge for Zeke's bobsled purchase is $197.50.
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Is 3/17 a rational number
Answers
Answer:
no
Step-by-step explanation:
Answer:
Yes
Step-by-step explanation:
A rational number is number that can be made by dividing two integers, like a fraction, or a ratio. Something that would not be a rational number would be like the square root of 2.
Write each statement as an algebraic expression.The quotient of the number that is 1 greater than a number b and the number that is twice as large as b.
Answers
(b+1)/2b
quotient = divided by
we're dividing a number that is 1 more than b (b + 1), with a number twice as large as b (2b).
Describe the rules for addition and multiplication of congruence classes in R[x]/(x2+1). In other words, if the sum [ax+b]+[cx+d] = [rx+s], describe how to find r and s from a,b,c,d. similaryoy if the product [ax+b][cx+d] = [ux+v], describe how to find u and v from a,b,c,d (for this product you will have to "FOIL" the ax+b and cx+d, and then mod the result by x2+1 to compute the remainder).
Answers
x2=-1, which simplifies the rule for addition and multiplication of congruence product to [ac - bd] + [ad+bc]x
In the given field R[x]/(x2+1), the rules for addition and multiplication of congruence classes are given below:
Rules for addition:
The addition of two congruence classes in R[x]/(x2+1) is done by adding their respective coefficients and then finding the remainder when divided by x2+1.
That is, if the sum [ax+b]+[cx+d] = [rx+s], then r = a+c, and s = b+d.
The addition of two congruence classes is done as follows:
[a,b]+[c,d] = [a+c, b+d] (mod x2+1) = [a+c-(b+d)x, b+d]
Rules for multiplication:
The multiplication of two congruence classes in R[x]/(x2+1) is done by FOIL method, then reduce the polynomial by x2+1.
That is, if the product [ax+b][cx+d] = [ux+v],
then
u = ac + bd, v = ad + bc.
The multiplication of two congruence classes is done as follows:
[a,b] [c,d] = [(ac+bd), (ad+bc)] (mod x2+1) = [(ac+bd)-(ad+bc)x, (ad+bc)]
The given product is [ax+b][cx+d] = [acx2 + (ad+bc)x + bd] (mod x2+1).
But x2+1=0,
hence x2=-1, which simplifies the above product to [ac - bd] + [ad+bc]x.
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Please give the right answer only.
The correct person will get 100 points, 5 Stars and Brainliest.
Incorrect person, will have there points taken back and nothing given.
Answers
Answer:
2a) \(3x^2 + 22x + 24\)
2b) \(504 \, \textrm{m}^2\)
3) \(4x^2 + 14x + 16\)
Step-by-step explanation:
See the attached image for the algebraic manipulation which these written explanations go along with:
2a) The two dimensions, which I labeled \(l\) for length and \(w\) for width, are simply multiplied together and the result is foiled out to get \(3x^2 + 22x + 24\).
2b) All that happens here is \(10 \, \textrm{m}\) being substituted for \(x\) in the expression which was the answer to problem 2a. The result should be \(504 \, \textrm{m}^2\).
3) The figure can be split into two rectangles, and the rectangles' areas, which I labeled \(R_1\) and \(R_2\), can be added to find the figure's total area, \(4x^2 + 14x + 16\).
a square base that covers an area of 25 ft squared what is the length of one side of the tent?
Answers
The scatter plot shows the number of strawbernes that have been picked on the farm during the month of February.
Part A Using computer software, a correlation coefficient of 0. 01 was calculated Based on the scatter plot, is that an accurate value for this data? Why or why not? (5 points)
Part B. Instead of comparing the number of strawberries picked and the day in February, write a scenario that would be a causal relationship for strawberries picked on the farm (5 points)
Answers
There is a relationship between the numbers of strawberries gathered and the amount of rainfall that can be found in a model (function).
What is a Scatter Plot?A scatter plot with a trendline along which the data points are situated can be used to demonstrate the relationship between correlated variables.
Indicating a positive correlation is when the trendline slopes higher from left to right, while the opposite is true.
Part A:
The correlation coefficient of r = 0.1 is valid based on the provided scatter plot.
Part B:
The independent variable (the explanatory variable) is the cause of the dependent variable in a causal connection.
As a result, you need to identify a plausible factor that can influence the number of strawberries collected.
The week before harvest, I could picture how much it would rain.
Hence, There is a relationship between the number of strawberries gathered and the amount of rainfall that can be found in a model (function).
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Your current salary is $32,000 per
year. If you get a 4% raise, how
much will you make now per year?
Answers
Answer:
$128,000 per yearStep-by-step explanation:
32,000
×. 4
Answer:
$33,280
Step-by-step explanation:
Since your salary is $32,000, you would take 4% from $32,000 and add it to the current salary. 4% can be shown as .04 in decimal form. If you multiply 32,000 by .04 you get 1280. Add 1,280 to 32,000 and you get 33,280.
jenelle is planting a circular vegetable garden with a fence around the border. If she can use up to 50 feet of fence, what is the largest whole number radius she can use for the garden?
Answers
The Length of the fence in the example doubles as the perimeter of the circular garden. Hence the largest whole number of the radius is 8 feet
Mensuration of Plain Shapes (Circle)Given Data
Length of Fence = 50 feet
Largest Whole number Radius = ??
In this exercise, the Length of the fence is the same as the perimeter of the circular vegetable garden.
We know that the expression for the perimeter of a circle is given as
Perimeter of Circle = 2πr
From here we can solve for the Radius r
50 = 2*3.142*r
50 = 6.284r
divide both sides by 6.284
r = 50/6.284
r = 7.956 feet
r = 8 feet
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There are two numbers between 30 and 40 that have just two factors.
What are they?
Answers
Answer:
31 and 37
Step-by-step explanation:
Those are the only two numbers
Answer:
The two numbers between 30 and 40 which have only 2 factors are -
31 and 37
Hope it helps you.
Jane works forty hours a week at $10 per hour and averages ten hours a week in overtime. She withholds 10% of her gross wages for a 401(k) plan and receives a 50% matching contribution by her employer. She pays $10 per week for group medical insurance coverage, pays FICA, and withholds 5% of her gross wages for Federal Income Tax. The month is February and she receives four paychecks.
Answers
Average gross pay per paycheck for the month of February is \($365.46\).The calculation of Jane's average gross pay per paycheck for the month of February is \($1,461.94\).
Here's how to calculate it:
1. Calculate the total number of hours Jane works in a week:
40 hours of regular pay + 10 hours of overtime = 50 hours
2. Calculate Jane's gross pay per week:
40 regular hours x \($10/hour = $400\) per week for regular pay
10 overtime hours x\($15/hour (1.5 x $10/hour) = $150\) per week for overtime
Total weekly gross pay = \($5503.\)
Calculate Jane's total gross pay for the month of February:
\($550 per week x 4 weeks = $2,200\)for the month
4. Calculate the total deductions for Jane's 401(k) plan and employer contribution:
10% of \($2,200 = $220\) for Jane's contribution
\($220 x 50% = $110\) for her employer's contribution
Total 401(k) plan contribution = \($3305.\)
Calculate the total amount Jane pays for medical insurance:
\($10 per week x 4 weeks = $40\) for the month
6. Calculate the total amount Jane withholds for Federal Income Tax:
5% of\($2,200 = $110\) for the month
7. Calculate the FICA taxes withheld from Jane's pay:
FICA taxes include Social Security and Medicare taxes.
For Social Security taxes, the current rate is 6.2% of gross pay up to a certain limit.
For Medicare taxes, the rate is 1.45% of all gross pay with no limit.
Jane's Social Security taxes are 6.2% of \($2,200 = $136.40\)for the month
Jane's Medicare taxes are 1.45% of\($2,200 = $31.90\) for the month
Total FICA taxes withheld = \($168.30\) for the month
8. Calculate Jane's net pay for the month:
Total gross pay - Total 401(k) contribution - Medical insurance cost - Federal Income Tax - FICA taxes withheld
\($2,200 - $330 - $40 - $110 - $168.30 = $1,551.70\) for the month
9. Calculate Jane's average gross pay per paycheck for the month of February:
\($2,200 / 4 paychecks = $550\) per paycheck
Average gross pay per paycheck - Total deductions / Number of paychecks per month
\($550 - ($220 + $40 + $110 + $168.30) / 4 = $365.46\)rounded to the nearest cent
Average gross pay per paycheck for the month of February is \($365.46.\)
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find the slope of the line please
Answers
3. Find the slope of the line that contains the
points (4, 5) and (7, 11).
Answers
Answer:
The slope is -2
Step-by-step explanation:
11-5 = -6, 7-4=3 -6/3 = -2
Factor the polynomial expression.
1+1
Answers
Answer:
molly
Step-by-step explanation:
Answer: only molly
Step-by-step explanation: i think not sure it its 100%
What are geometric solids with circular cross sections? What are they used for? How are they created?
Answers
Geometric solids with circular cross-sections include cylinders, cones, and spheres. Geometric solids with circular cross-sections include cylinders, cones, and spheres. And Cylinders, cones, and spheres can be created by rotating a two-dimensional shape about an axis.
1. Cylinder: A cylinder is a 3-dimensional solid that has two parallel circular bases connected by a curved surface. Cylinders are commonly found in everyday objects like soda cans and water bottles.
2. Cone: A cone is a 3-dimensional solid that has a circular base and a curved surface that tapers to a point. Cones are often used in architecture, like on the top of a church steeple.
3. Sphere: A sphere is a 3-dimensional solid that has a circular shape in all directions. Spheres are found in many natural objects like planets and fruit, as well as in man-made objects like Christmas ornaments.
What are they used for?Geometric solids with circular cross-sections are used in various fields, including architecture, engineering, and science. They are used for creating objects such as cans, pipes, towers, and buildings. These shapes are also used for modeling the natural world, such as the earth, planets, and the stars.
How are they created?Cylinders, cones, and spheres can be created by rotating a two-dimensional shape about an axis. For instance, a circle that is rotated around its center axis forms a cylinder. Similarly, a triangle that is rotated around one of its sides forms a cone, while a circle that is rotated around its center axis forms a sphere.
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I really need help!!!
if f(x)=x^2+4x-5, find f(-4)
Answers
Answer:
−5
Step-by-step explanation:
By substituting the value of x in f(x) with -4,
(-4)^2+4(-4)-5
=16+(−16)−5
=0−5
=-5
Your welcome :D
Please Answear Quickly
Answers
These waves were most wrongfully and barbarously abrupt, reflecting the historical influence of a time when ships were powered by
Thus, option D is correct.
According to the passage, which was written by Stephen Crane, regarding the open boat. The line where it was depicted is about the wrongful and the barbarous. Wave that was present. They suggested that in earlier times or in historic times, there weren't any technologies that would help them sail, but the waves were the ones who took them from one position to another.
Therefore, option D is the correct option.
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Which of the following are interior angles in the figure below?
O
A. 21, 22, and 26
B. 25 and 26
C. 23 only
D. 21, 22, and 23
Answers
Answer:
(A), 21, 22,and 26
Step-by-step explanation:
gakzbzkxvuxnsslvzixvdkdbdjxvshhzvskdvxy dgsjzvsks ysjdbdudvsk jdkdbdb
What is the product of and ?
Answers
Answer:
I dont understand the question
Step-by-step explanation:
Ummmmm product of what
(GIVING BRAINLIEST!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!)
A new piece of data was recorded and added to the line plot. The difference between the largest and smallest amounts of snow is now 3. What could the new values of the data be?
Answers
Part A )a painter leans a ladder up against a building. The base of the ladder is placed 7 feet from the building to reach a height of 24 feet. How long is the ladder
Part B) The painter uses the same ladder from part A, but now needs to reach a height of 19 feet.How far away does the base of the ladder need to be placed from the building?
Answers
Answer:
Part A). 25 feet
Part B). 16.25 feet
Step-by-step explanation:
Part A). By applying Pythagoras theorem in ΔABC,
AC² = AB² + BC²
AC² = (24)² + 7²
AC² = 576 + 49
AC = √625
= 25 feet
Part B). By applying Pythagoras theorem in ΔABC,
AC² = AB² + BC²
(25)² = (19)² + x²
625 = 361 + x²
x² = 625 - 361
x = √264
x = 16.25 feet
A pair of inequalities joined by "and" or "or" is called a
Answers
a sample of 153 ultimate tensile strength observations were considered. the sample mean was 135.39 and sample standard deviation was 4.59. calculate a 99% lower confidence bound for true average ultimate tensile strength.
Answers
The 99% lower confidence bound for the true average ultimate tensile strength is 134.09.
To calculate the 99% lower confidence bound for the true average ultimate tensile strength, we need to use the formula:
Lower confidence bound = sample mean - (critical value * (sample standard deviation / √(sample size)))
First, we need to determine the critical value for a 99% confidence level. Using a t-distribution table with 152 degrees of freedom (sample size - 1), we find a critical value of -2.602.
Plugging in the values, we get:
Lower confidence bound = 135.39 - (-2.602 * (4.59 / √(153)))
Lower confidence bound = 134.09
In simpler terms, we can say that we are 99% confident that the true average ultimate tensile strength is at least 134.09 or higher based on our sample data.
This means that if we were to take many different samples of the same size and calculate the lower confidence bound for each sample, we would expect 99% of them to contain the true average ultimate tensile strength value.
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If I worked 12 hours a day for 4 days and my job stacks overtime, how many hours of overtime
would I get paid for?!How many hours of overtime would I get paid for if they did not stack overtime hours?
Answers
Answer:
I think you should ask ur manager lol
Step-by-step explanation:
Convert 60 inches to feet. There are 12 inches in a foot
Answers
Answer:
60/12= 5
5 feet
Answer:
5 feet
Step-by-step explanation:
Divide the length value (inches) by 12.
The mean temperature for the first 7 days in January was 6 °C. The temperature on the 8th day was 10 °C. What is the mean temperature for the first 8 days in January?
Answers
Answer:
6.5
Step-by-step explanation:
In this question, we are tasked with calculating the mean temperature for the first 8 days.
since we we have the mean temperature for the first 7 days, the total temperature is thus 7 * 6 = 42
Now, on the 8th day, temperature is 10, this brings total temperature to 42 + 10 = 52
The mean temperature for the first 8 days ys therefore; 52/8 = 6.5