Answer:
the conversion factor
Step-by-step explanation:
if points x,y, and z are collinear, and the slope between ponys y and z is -4. What is the slope between points x and y
Answer:
-4
Step-by-step explanation:
If the points are collinear, then all the points are on the same line. Any two points will have the same slope.
x and y, x and z, y and z, all have the same slope, -4.
The average age of a class of 25 students is 10 years and the average age of another class of 30 students is 15 years. Find the average age of students of the two classes.
The average age of the two classes is 12.73 yrs.
How do we calculate average?Average This is the arithmetic mean, which is computed by adding a set of integers and then dividing by the number of numbers in the set.The average is just the sum of all the numbers divided by the total number of values. The mathematical average of a group of two or more data values is defined as a mean. Average is also known as mean or arithmetic mean. Mean is merely a way of describing the sample's average.Total age of 25 students =25×10=250years.
Total age of 30 students =30×15=450years
∴ Total age of 55 students =250+450=700years
∴ Required For 55 students = 700/55 = 12.73 yerars
∴ The average age of the two classes is 12.73 yrs.
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You help me and my mom we need you more
Answer:
Please give a question to answer. Nothing has been included to answer.
Step-by-step explanation:
(1 point) find the minimum sample size needed to be 99% confident that the sample variance is within 50% of the population variance.
The minimum sample size need for the given condition is 14
What is Confidence Level in Statistics?
The proportion of likelihood, or certainty, that the confidence interval will include the real population parameter when a random sample is drawn numerous times is referred to as the confidence level.
Solution:
The minimum sample sixe required when,
Confidence Level = 99%
Variance = 50%
Generally going through the table
Minimum sample size is
X = 14
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An online furniture store sells chairs for $200 each and tables for $600 each. Every day, the store can ship no more than 40 pieces of furniture and must sell no less than $12000 worth of chairs and tables. If xx represents the number of tables sold and yy represents the number of chairs sold, write and solve a system of inequalities graphically and determine one possible solution.
If the minimum 30 chairs were sold , then the minimum number of Tables sold is 10.
Given as :
The cost of each chair = $ 200
The cost of each table = $ 600
The total number of furniture sold per day = 40
The minimum amount of selling per day = $ 12000
Let the total number of chair = C
The total number of table = T
So , according to question
C + T = 40 .......1
200 C + 600 T = 12000 .......2
Solving eq 1 and 2
200 C + 600 T = 12000
200 × ( C + T ) = 40 × 200
i.e 200 C + 200 T = 8000
or, ( 200 C + 600 T ) - ( 200 C + 200 T ) = 12,000 - 8000
Or, 400 T = 4000
i.e T = 10
Put The value of T in eq 2
So, 200 C + 600 × 10 = 12000
or , 200 C + 6000 = 12,000
Or, 200 C = 12000 - 6000
Or, 200 C = 6000
i.e C = 30
The number of chair sold is 30
If the number of chair sold is 10 ,
Then the min number of table sold = 200 × 30 + 600 T = 12000
i.e 600 T = 12000 - 6000
or, 600 T = 6000
∴ T = 10
I.e T = 10
Hence, if the minimum 30 chairs were sold , then the minimum number of Tables sold is 10 .
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help meeeeeeeeeeee pleaseee rnnnnn!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
The total amount owed by Erica after 5 years is $10865
How to determine the total amount in five years?From the question, we have the following parameters:
Amount borrowed, P = $5300Interest rate on the loan, R = 8%Duration to repay the loan, t = 6 yearsNumber of times the loan is compounded in a year, n = 12, i.e. compounded monthlyAlso from the question, the formula to determine the compound interest formula to be represented as:
A = P(1 + r/n)^nt
Where the values of the variables have been stated above
Solving further, we replace the variables with their values in the above equation
So, we have the following representation
A = 5300 * (1 + (8%/12))^(6*12)
Evaluate the expression
A = 10865
Hence, the value of the amount after 6 years is $10865
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jenelle draws one card from a standard deck of 52 cards. determine the probability of drawing either a queen or a king? write your answer as a reduced fraction. answer
Answer:
18/7
Step-by-step explanation:
check this might work as I simply
In the given relation, what domain value corresponds to the range value 4?
{(-1,2), (-2,4), (2,5), (0,-2), (2,0)}
a. 0
b. 2
c. -2
d. 4
Guadalupe is scuba diving four minutes ago he was at -3 feet now is at -15 feet what is the difference between in the two depths
The difference between the depth at 3 minute ago and the depth now is 12 feet.
What is difference in mathematics?
Difference in mathematics is produced by one of the most important mathematical operations, which is obtained by deleting two numbers. It displays the difference between two numbers. The objective of finding the difference in math is to ascertain how many numbers there are between the two specified numbers. In terms of notation, there is a negative difference (-).
The depth 3 minute ago was -3 feet,
The depth now is -15 feet.
subtracting the depth now from the depth 3 minute ago,
-3 -(-15)
= 12 feet
Therefore, the difference is 12 feet.
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Senja earns $46,200 a year. Her exemptions total $2,900. This year she can deduct $5,000 for business expenses. She also has $2,500 in deductions for medical expenses. What is Senja's taxable income?
The amount that would be Senja's taxable income would be = $38,700
What is taxable income?This is the total income of an individual after the removal of discounts and exemptions from which such is expected to pay a certain percentage of tax.
The amount she earns a year = $46,200
Lat years total deductions = $2,900.
Deductions for business expenses = $5,000
Deductions for medical expenses = $2,500.
The total deductions for this year = $7,500
Therefore, the amount this year that is taxable income for Senja = $46,200 - $7,500 = $38,700
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u - 9.7 < -8.8 Solve the inequality for u.
Simplify your answer as much as possible.
The value of the inequality u - 9.7 < -8.8 is u < 0.9.
What is an inequality?Inequalities are created through the connection of two expressions. It should be noted that the expressions in an inequality aren't always equal. Inequalities implies that the expressions are not equal. They are denoted by the symbols ≥ < > ≤.
Here, the inequality is given as:
u - 9.7 < -8.8
Collect like terms
u < -8.8 + 9.7
u < 0.9
The value is u < 0.9.
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i need help pleaseee!!!
Answer: x = 57
Step-by-step explanation:
Since CD = AC, triangle ACD is isosceles, therefore
ADC = DAC
ADC + DAC + 112 = 180
ADC + DAC = 180 -112 = 68
ADC + DAC = 68/2 = 34
DEB = 180 - 34 - 23 = 123 (sum of interior angles of a triangle = 180)
Therefore, x = 180 - 123 = 57 (DEB and x are supplementary angles)
Determine the distance between the points (−6, −3) and (0, 5).
Answer: Total distance 2√10
Step-by-step explanation:
liter balloon that already contained 2.51 moles of argon. What
Sally adds 3.13 moles of argon to a 5.29
is the volume of the balloon after the addition of the extra gas?
The volume of the balloon after the addition of the extra gas is 11.87 liters
The initial volume of the balloon = 5.29 liters
Initial quantity of argon in the balloon = 2.51 mole
Here we have to use the unitary method
The volume of the 1 mole of argon = The initial weight of the balloon / Initial quantity of argon in the balloon
Substitute the values in the equation
The volume of the 1 mole of argon = 5.29 / 2.51
= 2.11 liters
Additional argon added = 2.51 mole
Total quantity of argon = 2.51 + 3.13
= 5.64 mole
The volume of the 5.64 mole of argon = 5.64 × 2.11
= 11.87 liters
Hence, the volume of the balloon after the addition of the extra gas is 11.87 liters
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how do i put SIF into standard form?
y=5/4x+3/4
The standard form of the given equation is 5x - 4y = -3.
What is a standard form of an equation?
The standard form for linear equations in two variables is Ax+By=C.
What is a slope intercept form?
The slope-intercept form is the way to write a line's equation so that the y-intercept (where the line crosses the vertical y-axis) and slope (steepness) are instantly visible. This form is frequently known as the y = mx + b form.
Here, we have
y = 5/4x+3/4
we have to convert this equation into standard form
y - 5/4x = 3/4
y - 5/4x - 3/4 = 0
4y - 5x - 3 = 0
4y - 5x = 3
5x - 4y = -3
Hence, the standard form of the given equation is 5x - 4y = -3.
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ANSWER FOR BRAINLIST DUE TODAY!
Answer:
a. Draw two lines which intersect each other somewhere on the graph.
b. Draw two parallel lines.
Rajiv wishes to make a cube without a lid with cardboard. the amount of cardboard available is 245 sq.cm. what should be the length of the side choosen in order to make the cardboard box?
The length of the side chosen in order to make the cardboard box is 7cm in the square.
What is square?
Having four equal sides, a square is a quadrilateral. There are numerous square-shaped objects in our immediate environment. Each square form may be recognised by its equal sides and 90° inner angles. A square is a closed form with four equal sides and interior angles that are both 90 degrees. Numerous different qualities can be found in a square.
We are given that rajiv wishes to make a cube without lid with cardboard.
5a² = 245 sq.cm
a² = 245/5 = 49
a = 7 cm
Hence the length of the side chosen in order to make the cardboard box is 7 cm.
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There are a total of 58 schools and 23,581 students attend those schools. Sarah only works in 23 of those schools, how many students has Sarah worked with?
If Sarah only works in 23 of those schools then Sarah worked with 9,351 students.
Given, There are a total of 58 schools and 23,581 students attend those schools. Sarah only works in 23 of those schools
now, as 58 schools = 23581 students
1 school = 23581/58 students
now,
23 schools = 23× 23581/58 students
23 schools = 9,351 students
So, Sarah worked with 9,351 students.
Hence, Sarah worked with 9,351 students.
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What is -3 1/3 ÷ 9? It would be nice to have the answer. Like really nice. I never even done this before.
Answer:
-0.37 or -37/100
Step-by-step explanation:
On a calculator, take the fraction, and divide the 1 by the 3:
1 divided by 3 = 0.33.
So, we have -3.33 divided by 9.
Let's use the calculator to find the final answer:
-0.37
To convert this to a fraction, we have to convert -0.37 to -37 and find the common 10. So, 1 is less than 37 in this term. Same with 10. But, 100 will work:
37/100
May I have Brainliest please? My next rank will be the highest one: A GENIUS! Please help me on this journey to become top of the ranks! I only need 12 more brainliest to become a genius! I would really appreciate it, and it would make my day! Thank you so much, and have a wonderful rest of your day!
Answer:
-10/27
Step-by-step explanation:
so to divide fractions first we turn them into improper fractioms
-3 1/3 ÷9
-10/3÷9/1
now we use skip flip mutliply to find the answer where we keep the first term the same then flip the second fraction and then mutliply
-10/3÷9/1
-10/3 × 1/9
-10/27
hopes this helps please mark brainliest
3-1/6-(-1 3/10) please help
Answer:
3-1/2 - (-1 3/10)
Convert the number
3- 1/6 - (-13/10)
Determine the sign
3- 1/6 + 13/10
Transform the expression
90-5+39
_______
30
Calculate
124/30
Simplify
62/15
Answer
62/15
What is the solution of the simultaneous equations 3x 2y 14 and 4x 3y 13?.
The solution of simultaneous equations is x=4 and y = -1.
What are Simultaneous equations?
Simultaneous equations are two or more algebraic equations with the same unknown variables and the same value of the variables satisfies all such equations.
We can solve simultaneous equations by various methods. here we will solve it by elimination method.
Here we have two simultaneous equations
3x -2y = 14 --- (i)
and 4x + 3y = 13---(ii)
Now multiplying (i) by 3 and (ii) by 2 we get
9x -6y = 42 and 8x + 6y = 26.
Now adding both we get
17x = 68 ⇒ x = 68/17 ⇒ x = 4.
Substituting the value of x in (i), we get
3*4 - 2y = 14 ⇒ -2y = 14-12 = 2 = -2/2 ⇒ y = -1.
Therefore, the values of x and y are 4 and -1 respectively .
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NOTE : The question given here is not complete. The complete question is given below.
Question: What is the solution of the simultaneous equations 3x- 2y= 14 and 4x+ 3y= 13?.
School rule permit no fewer than 2 teacher per 25 tudent. There are at leat 245 tudent enrolled in the chool. If x repreent teacher and y repreent tudent, which linear inequalitie can be ued to determine the poible number of teacher and tudent at the chool
The linear inequality is y≥ 245 and x ≥ 2y/25.
Linear Inequality:
Linear inequalities are defined as mathematical expressions in which two expressions are compared using the inequality symbol. The expression can be an algebraic expression or numerical expression or a combination of both.
Here it is given that x represents the teacher y represents the student.
It is given that no fewer than 2 teachers per 25 students.
x/y > 2/25
It is given that at least 245 students enrolled in the school.
As per the given condition,
The linear inequality for the students:
y≥ 245
Now the possible number of teachers (x).
As per the condition the required inequality for teachers will be:
x ≥ 2(y/25)
x≥ 2y /25.
Therefore the linear inequalities are y≥ 245 and x ≥ 2y /25.
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Lora' phone record data for creen time each week. Lat week, he ued 840 minute. Thi week, Lora ued 504 creen time minute on the phone. Calculate the percent decreae in creen time thi week. 17%
34%
40%
67%
The percent of decrease in screen time this week is 40%. correct option is (C).
given that
lora's screen time last week is 840 minutes
lora's screen time this week is 504 minutes
let's calculate the percentage decrease
decrease = 504-840
decrease = -336
percentage decrease = (-336/840) * 100
= -0.4*100
=-40
percentage of decrease is 40%
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The question was incomplete. Check below the complete question.
Lora' phone record data for creen time each week. Lat week, he ued 840 minute. Thi week, Lora ued 504 creen time minute on the phone. Calculate the percent decreae in creen time thi week.
a. 17%
b. 34%
c. 40%
d. 67%
Jay has a 50 gallon water tank. He fills the tank with a garden hose at a rate of 8. 2 gallons per minute. There are 9 gallons of water in the tank
What is the maximum amount of time Jay can add water without causing the tank to overflow?
The maximum amount of time Jay can add water without causing the tank to overflow is 5 minutes.
Given:
Jay has a 50 gallon water tank. He fills the tank with a garden hose at a rate of 8. 2 gallons per minute.
There are 9 gallons of water in the tank.
water tank to fill = water tank capacity - water in the tank.
= 50 - 9
= 41 gallons.
Time = 41 / 8.2
= 41 / 82/10
= 41*10 / 82
= 10/2
= 5 minutes.
Therefore the maximum amount of time Jay can add water without causing the tank to overflow is 5 minutes.
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What scale factor was used to enlarge uvw to klm
The scale factor that was used to enlarge the triangle uvw to klm is 4/3
How to determine the scale factor that was used to enlarge the triangles?The triangles that complete the question are added as an attachment
From the attached triangles, we have the following side lengths:
Triangle UVW
UV = 9 units
VW = 15 units
Also, we have
Triangle KLM
KL = 12 units
LM = 20 units
Because the triangle was enlarged from triangle UWV, it is expected that the side length of KLM will be greater than the corresponding side length of UVW
The scale factor of dilation is then calculated using the following scale factor formula
Scale factor = Side length of KLM divided by Side length of UWV
Mathematically, we have
Scale factor = KLM/UVW
Substitute the known values in the above equation, so, we have the following representation
Scale factor =20/15
Evaluate the quotient
Scale factor = 4/3
Hence, the scale factor is 4/3
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A regular polygon has 16 sides. If one of its angles measures (5h − 29)°, what is the value of h?
h = 56.5
h = 37.3
h = 33.6
h = 9
Answer:
(b) h = 37.3
Step-by-step explanation:
You want the value of h if an angle of a regular 16-gon is given as (5h-29)°.
AngleThe interior angle measure of a regular n-gon is given by ...
θ = 180° -360°/n
For n=16, the interior angle measure is ...
θ = 180° -360°/16 = 157.5°
Value of hThe value of h can be found by solving the equation ...
5h -29 = 157.5
5h = 186.5 . . . . . . add 29
h = 37.3 . . . . . . . divide by 5
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Each marble bag sold by Debra's Marble Company contains 6 orange marbles for every 5 red marbles. If a bag has 40 red marbles, how many orange marbles does it contain?
What does y and x stand for in an equation???
Answer: nothing it’s a variable
Y=x+3\x-2
Deg. Of numerator___
Deg. of denominator___
Optional?
Horizontal Asymptote ____
Vertical asymptote ____
The solution to the questions are
The degree of the numerator is 1The degree of the denominator is 1The horizontal asymptote is y = 1The vertical asymptote is x = 2The degree of the numeratorThe function is given as
y = (x + 3)/(x - 2)
The numerator of the function is
x + 3
The above expression is a linear expression
So, the degree is 1
The degree of the denominatorThe function is given as
y = (x + 3)/(x - 2)
The denominator of the function is
x - 2
The above expression is a linear expression
So, the degree is 1
The vertical asymptoteThe function is given as
y = (x + 3)/(x - 2)
Set the numerator to 0
x +3 = 0
Evaluate
x = -3
The horizontal asymptoteThe degree of the numerator is 1
So, the horizontal asymptote is y = 1
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Find the slope of the line graphed below.
Answer:
5/4
Step-by-step explanation:
Count up from the first point to the line where the second point lies, then write that number and count to the side till you reach the second point which would give you 5/4.
