We employ the following equation to get the normal monthly cost:
4m - 8 = 64
Regular monthly expenses amount to $18.
Irma paid for her cats' subscription in advance for a 4-month period.
She saved $8 overall when she utilized a one-time discount.
Irma totaled $64 in payment.
We must identify the equation that can be utilized to calculate m, the average monthly cost.
Let's use m to symbolize the normal monthly expenditure. She signed up for a subscription that would last for four months, thus the full price without the voucher is 4m.
When the coupon is used, the final price is (4m - $8), since she was given a $8 discount.
Irma paid a total of $64 according to the problem, thus we can create the following equation:
4m - $8 = $64
We must now solve for m in order to determine it. Isolating 4m on one side of the equation will be our first step.
4m = $64 + $8
4m = $72
Finally, divide both sides by 4 to solve for m:
m = $72 / 4
m = $18
So, the regular cost per month, m, is $18.
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PLZ HELP!!!! The school bus travels at an average speed of 30 miles an hour in the morning because of the traffic. Diego's Home is 3 miles away from the school. If he got picked up by the bus at his house at 7:12am, what time did he arrive at the school?
Answer:
he arrived at school at 7:18
Step-by-step explanation:
Time = distance/speed = 3mi/30mph
= 3/30
= 0.1 hour
= 6 minutes
= 00:06:00
Use the correct order of operations to solve the problem below.
14 - 8 + 6 - 10 ÷ 2
Answer: 7
Step-by-step explanation:
How Do You Solve 3 linear equations with 3 variables?
The standard way to solve 3 linear equations with 3 variables is to use elimination or substitution.
-Elimination: To solve the 3 equations using elimination, add or subtract equations together to eliminate one of the variables. Keep repeating this process until you are left with one equation with one variable. Solve the equation and then use the value of the variable to substitute back into the other equations to find the values of the other variables.
-Substitution: To solve the 3 equations using substitution, pick one of the equations and solve it for one of the variables. Then substitute the value of the variable into the other equations. Keep repeating this process with the other equations and variables until you have a system of equations with one variable that you can solve. Once you have the value of the variable, substitute it back into the other equations to find the value of the other variables.
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Find the values of x and y 2x+2y=x+13
How to multiply 20x67?
Answer:
do 20 times 67 and it will equal 1,340
Step-by-step explanation:
1
20
x 67
1 , 3 4 0
Answer:
Your answer is 1340
Step-by-step explanation:
2 0
× 6 7
--------------------------------------
+ 1 4 0 First you do 7 * 20
+ 1 2 0 0 Then you do 60 * 20
--------------------------------------
= 1 3 4 0 Then you add them together.
Let h(x)=[tex]\sqrt{x+3}[/tex] and k(x)=2x+7
Find the value of h(k(3))
need help on khan NOW! question is on picture. will report link and mark brainliest if right
hi quick whats 18 x 1.25
step by step !!
Answer:
22.5
Step-by-step explanation:
125
x 18
---------
1. first set up your problem
2 4
125
x 18
------
1000
2. next multiply the 8 by 5 getting 40, drop the 0 anf move the 4 to the top above 2.
3. multiply 8 by 2 getting 16, then add the 4 you have ontop of the 2 to the 16 getting 20. Drop the 0 and bring the 2 over and place it above the one.
4. multiply 8 by 1 getting 8 then add the 2 above the 1 to 8 getting 10. Then put the ten infront of the tw zeros. 1000
125
x 18
--------
1000
0
Next add a 0 as a place filler under the 0 at the end.
125
x 18
-------
1000
1250
Then multiply the 1 by 5, then 1 by 2, then finnaly 1 by 1, getting you 1250.
1000
+1250
add together
getting 2250
then move 2 decimal places over to get 22.5
How do you find the slope of a line example?
The easiest way to find the slope of a line is converting the line equation into the slope-intercept form.
There are 3 forms of line equations:
- slope intercept form, the equation is given by:
y = mx + b
Where:
m = slope
- point slope form, the equation is given by:
y − y₁ = m (x - x₁)
Where:
m = slope
- standard form: Ax + By = C
The easiest way to find the slope of a line is to convert it into a slope-intercept form.
Example:
Line equation in standard form:
2x + 4y = 6
We will convert it into slope-intercept form.
4y = -2x + 6
y = (-2/4) x + 6
y = (-1/2) x + 6
Hence, the slope is (-1/2)
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what is the equation of the line that is perpendicular to the line y=3/5x+10 and passes through the point (15,-5)?
Answer:
y = -5/3x + 20
Step-by-step explanation:
y = -5/3x + b
-5 = -5/3(15) + b
-5 = -25 + b
20 = b
y = -5/3x + 20
Answer:
In other words.. The fourth option D.
Step-by-step explanation:
EDGE2022
i like your cut g
Find the values of x and y
The values of x and y, given the angles in the diagram, can be found to be :
x = 11y = 17How to find the value of x and y ?The angles given above are called vertical angles and they are such that the two corresponding angles are equal to each other.
This means that ( 8 x + 7 ) ° is equal to ( 9 x - 4 )° and 5 y° is equal to ( 7y - 34 )°.
The value of x is :
8 x + 7 = 9 x - 4
9x - 8x = 7 + 4
x = 11
The value of y is :
5 y = 7y - 34
7y - 5y = 34
2 y = 34
y = 34 / 2
y = 17
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sum of two positive number is always
Rochelle deposits $5,000 in an IRA. What will be the value (in dollars) of her investment in 15 years if the investment is earning 7% per year and is compounded continuously? (Simplify your answer completely. Round your answer to the nearest cent.)
Answer:
$80.438.11
Step-by-step explanation:
the formula for calculating future value when there is continuous compounding is : A x e^r x N A= amount e = 2.7182818 N = number of years r = interest rate
$5,000 x (2.7182818 ^0.07) x 15 = $80.438.11
Hello please evaluate the expression ( 2x - y)
Write an explicit formula for a_na
n
, the n^{\text{th}}n
th
term of the sequence 27, 9, 3, ...27,9,3,....
The equation which correctly represents the explicit formula for the nth term of the given sequence is; a (n) = a (n - 1) × ( 1 / 3 ) and a (1) = 27.
Which equation represents the nth term of the given sequence?As evident in the task content; the given sequence is a geometric sequence and the common ratio of the sequence can be determined as;
r = 3 / 9 = 9 / 27 = 1 / 3.
On this note, since the common ratio of the consecutive terms of the sequence is; 1/3 it follows that the required explicit formula which represents the nth term , a (n) is;
a (n) = a (n - 1) × ( 1 / 3 ) and a (1) = 27.
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In its prime, Mr. Ford’s 2002 Focus would get 36
miles/gallon. Mr. Ford starts a road trip to San
Bernardino, Barstow, Kingman, Winona, and
Flagstaff, AZ. He starts with 13.2 gallons of gas in
his gas tank.
a) Write a slope-intercept equation that models how
much gas remains in his tank after each mile of of
travel(hint: g/mi)
Answer:
The fuel economy is 36 miles per gallon. For each mile 1/36 gallon will be used.
Initial volume is 13,2 gallons and x is the number of miles.
Our equation is:
y = 13.2 - 1/36xor
y = -1/36x + 13.2What is the slope of the mine that passes Through the point (4.5, 2.5) and (2, -10)?
Answer:
slope = 5
Step-by-step explanation:
slope of a line = y2 -y1 / x2 - x1
where x1 =4.5 x2 =2 y1= 2.5 y2 = -10
slope = -10 - 2.5 / 2 - 4.5
slope = -12.5 / -2.5
slope = 5
The first leg of a bike race is 6 km due east. For the second leg of the race, the riders turn northwest and ride 9 km. The final leg of the race runs at a 40° angle back to the second leg and brings the racers back to the starting point. To the nearest tenth, at what angle measure does the third leg of the race meet the first leg? Enter only a number.
Janine and Laura both took a standardized math test. The test scores were normally distributed with a mean of 75 and a standard deviation of 11. Janine earned a score of 76, whereas Laura earned a score of 89.
About what percentage of people had a score between Janine's and Laura's scores?
a) 30%
b) 43%
c) 80%
d) 36%
About what percentage of people had a score between Janine's and Laura's scores?
Answer:
Its D) 36%
How do you find the endpoint and midpoint?
To find the endpoint we have to calculate the distance between the known midpoint to the known endpoint. To calculate the midpoint we add two points and divide them by 2.
The formula for midpoint = (x1 + x2)/2, (y1 + y2)/2.
Substituting in the two x-coordinates and two y-coordinates from the endpoints.
Putting it together,
The endpoint formula is:
(x a ,ya)= ((2xm−xb),(2ym−yb))
( x a , y a ) = ( ( 2 x m − x b ) , ( 2 y m − y b ) ).
The end of a line at a point that is equally distant from both ends, a time interval between an event's beginning and end.
The point on a graph or figure where the figure stops might be referred to as the endpoint. It can be the point joining the sides of a polygon (the vertex), the common endpoint of two rays making an angle, the two extreme points of a line segment, the one end of a ray.
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Let Z be a standard normal random variable: i. E. , Z ∼ N(0, 1).
(a) Using the distribution method, find the pdf of U = Z 2. (We proved this in class by using the MGF method. )
(b) Using result from previous part, show that pdf of U follows a special case of Gamma distribution and also of χ 2 distribution. Write down the corresponding parameters for each
On using the distribution method the value could be [tex]e ^ {t^{2}[/tex]/ 2
What is the Gamma Distribution ?
A distribution which is described as two parameters – shape parameter and inverse scale parameter, having continuous probability distributions.
Given,
Z be a standard normal random variable: i. E. , Z ∼ N(0, 1).
Using the distribution method, find the pdf of U = Z 2.
And Using result from previous part, show that pdf of U follows a special case of Gamma distribution and also of χ 2 distribution.
Suppose e Z ∼ N (0, 1), then
mZ (t) = 1√2πetxe−x2/2dx
= et2/21/√2π
[tex]e ^ {-(x-t)^{2} /2[/tex] dx
= [tex]e ^ {t^{2}[/tex]/ 2
hence, on using the distribution method the value could be [tex]e ^ {t^{2}[/tex]/ 2
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Work out the length of x.
Give your answer rounded to 1 decimal place.
9 m
14.5 m
The diagram is not drawn accurately
Please help
Answer:
Calculate the value of x. Give your answer ... Hyp. 5.8 m. Opp. 1. Adi. Diagram NOT accurately drawn. POR is a triangle. Angle Q = 90° ... the value of x. Give your answer correct to 1 decimal place. ... a. Diagram NOT accumtely drawn. 9,6 cm. 6.4 cm. A. Hyp. To. Aaj. LMN is a right-angled triangle. MN = 9.6 cm. ... x = ton-14.5.
Step-by-step explanation:
please be right
Marla is four years less than twice as old as Darla. If the sum of their ages is 47, how old is Marla?
Marla is 30 years old.
Let marla age be x and Darla age be y
Given : Marla is four years less than twice as old as Darla
What is equation ?
In its simplest form in algebra, the definition of an equation is a mathematical statement that shows that two mathematical expressions are equal. For instance, 3x + 5 = 14 is an equation, in which 3x + 5 and 14 are two expressions separated by an 'equal' sign.
Marla is four years less than twice as old as Darla can be represented as : 2y - x = 4
sum of their ages is 47 can be represented as : x + y = 47
Solving both the equation using addition we got ,
3y = 51
y = 17
Substituting the value of y in x + y =47 , we get
x + 17 = 47
x = 47 -17
x = 30
Hence , Marla is 30 years old.
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Please complete the square, show your work.
x^2 - 19x +c
Answer:
Step-by-step explanation:
We need to transform the given x^2 - 19x + c into the form
(x - a)^2 + d
by completing the square:
1. Take half of the coefficient (-19) of x, obtaining -19/2.
2. Square this result, obtaining 361/4.
3. Add this to x^2 - 19x, and then immediately subtract it:
x^2 - 19x + c becomes x^2 - 19x + 361/4 - 361/4+ c
4. Replace the first three terms with (x - 19/2)^2:
x^2 - 19x + 361/4 - 361/4+ c => (x - 19/2)^2 - 361/4 + c
5. Put this into final form: (x - 19/2)^2 - (361/4 - c)
1 Total surface area = units?
Answer:
The answer is Thirty Six (36)
Answer:
36 g
Step-by-step explanation:
Evaluate the expression 5(x – 6 + 3x)2 – 6 where x = 2.
Answers:
1: 974
2: 14
3: -16
4: 26
So the expression evaluates to 14 when x = 2.
To evaluate the expression, we first substitute x = 2 into the expression:
5(2 - 6 + 3*2)^2 - 6
There are two methods for solving simultaneous linear equations: graphical methods and algebraic methods. The algebraic technique includes the substitution method as one of its categories.
The value of one variable from one equation is substituted in the second equation using the substitution method. In this manner, a pair of linear equations is reduced into a single linear equation with only one variable, which can then be solved quickly.
Next, we simplify the expression inside the parentheses:
=5(2 - 6 + 6)^2 - 6
=5(2)^2 - 6
=5*4 - 6
=20 - 6
=14
So the expression evaluates to 14 when x = 2.
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The graph of a function is line that passes through the points (1,4) (3,8) and (6,y) what is the value of y?
Step-by-step explanation:
First, find the slope from the first 2 points, then use the value of the slope and either one of the first 2 points to find y in the 3rd point.
m = (8 - 4)/(3 - 1) = 4/2 = 2
2 = (y - 4)/(6 - 1)
please help im giving 95 points
[tex]\\ \sf\longmapsto f(n)=2^n[/tex]
#a
[tex]\\ \sf\longmapsto f(1)=2(1)=2Amoebas[/tex]
#b
[tex]\\ \sf\longmapsto f(2)=2^2=4Amoebas[/tex]
#c
[tex]\\ \sf\longmapsto f(6)=2^6=64Amoebas[/tex]
#d
[tex]\\ \sf\longmapsto f(24)=2^24Amoebas[/tex]
Alice, Bob, Charles and Darwin are sharing an orange. Bob got twice as many slices as Charles,
Charles got 5 times less slices than Darwin, and Darwin got 8 slices more than Charles. Find the
number of slices in the orange given that Alice got only the peel.
(A) 10 (B) 12 (C) 14 (D) 15 (E) 16
Answer:
E
Step-by-step explanation:
Let
A = # of slices Alice got
B = # of slices Bob got
C = # of slices Charles got
D = # of slices Darwin got
First, write equations based on given information:
A = 0
B = 2C
5C = D
D = C + 8
5C = D -> D = 5C
Now that we have two equations for D, we can set them equal to each other:
5C = C + 8
4C = 8
C = 2
Now just plug in the rest:
A = 0
B = 2(2) = 4
C = 2
D = 2 + 8 = 10
Add all solutions together to get (E) 16 slices
2.
The table shows the number of absences at two middle schools over a period of two weeks.
Attendance Comparison
School Number of Absences by Date
2/12/2/2/3/2/4/2/5/2/8/2/9/2/10 2/11 2/12
Belmont 1612151018117 9 12 14
Tyler 13 10 12 10 20 13 8 6 6 11
Which statement best compares the means and medians of the data for the two schools?
Answer:
C.
Step-by-step explanation:
The mean at Belmont is 16.75, the median is 15.5, and the mode is 13.
The mean at Tyler is 10.9, the median is 10.5, and the mode is 13, 10, and 6.