The solution to the equation (2x - 20)/3 = 2x of temperature change gives x = -5.
What is defined as the temperature change?Temperature change - a change in the degree of hotness of the a body (or medium). Advection is the horizontal transmission of heat or even other atmospheric properties in meteorology.Temperature change definitions. a procedure for changing the degree of heat of a body (as well as medium).The given equation is;
(2x - 20)/3 = 2x
Simplify the equation;
2x - 20 = 6x
Bring variables together;
6x - 2x = -20
4x = -20
Divide by 4
x = -5
Therefore, the solution to the equation (2x - 20)/3 = 2x of temperature change gives x = -5.
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help me understand the linear equation
Answer:
y = 4x - 4
Step-by-step explanation:
Slope intercept follows the form y = mx + b
m represents the slope
b represents the y intercept
To find the slope of a table you can find the constant change in y over the constant change in x. The y values 0, 4, 8, 12 are increasing by 4 every point meaning the change in y is 4. The x values 1, 2, 3, 4 are increasing by 1 every point meaning the change in x is 1. Making the slope 4/1 or just 4.
Now use what you know: y = 4x + b to find b, we can use any of the coordinate points to substitute. I'm going to use point (1,0) where 1 is the x value and 0 is the y value.
y = 4x + b
0 = 4(1) + b
Solve for b
b = -4
:)
Supergym is a natural chain of gyms. it's employees sold 5,190 gym memberships last year. this year, they sold 70% more memberships than that. how many memberships did they sell this year?
Super Gym employees sold 8,823 gym memberships this year, 70% more than the 5,190 gym memberships last year.
In mathematics, a percentage, usually denoted by %, is a number or ratio that represents a fraction of 100.
If the problem states that the gym's employees sold 70% (70 percent) more memberships than last year, and it's employees sold 5,190 gym memberships last year, then
memberships this year = 70% more than last year
memberships this year = 70%(5,190) + 5,190
memberships this year = 3,633 + 5,190
memberships this year = 8,823
Hence, the gym's employees sold 8,823 memberships this year.
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Determine the slope of the line that contains the given points.
T(-6,-11), V(-12,-10)
The slope of the line containing (-6,-11) and (-12,-10) is (-1/6).
The slope of a straight line can be written as follows,
m = [tex](y_{2} - y_{1} )/(x_{2} - x_{1} )[/tex] equation1
The line is containing the points (-3,3) and (4,3). So, we can write
[tex]y_{2}[/tex] = -10 , [tex]y_{1}[/tex] = -11 , [tex]x_{2}[/tex] = -12 , and [tex]x_{1}[/tex] = -6 .
On substituting the values of variables in equation1, we will get
m = ( (-10)-(-11) ) / ( (-12)-(-6) ) = (1/(-6)) = (-1/6).
As the slope of a line is (-1/6), so we can conclude that the given line is a straight line.
Here:
m = the slope of the line
( [tex]x_{1}[/tex] , [tex]y_{1}[/tex] ) are the first coordinates.
( [tex]x_{2}[/tex] , [tex]y_{2}[/tex] )are the second coordinates.
The slope of the line containing (-6,-11) and (-12,-10) is (-1/6).
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find the value of x if RS bisects AB and RS = 36
The value of the variable 'x' shown in th the geometrical figure is equal to 2cm
What is line bisector?
A line bisector divides the line into two equal parts. For a line of length ' L ', the bisector divides the line into two equal parts of length L/2 each.
Given is a geometrical figure in which RS is bisector of AB at point T and RS = 36.
RS bisects AB at point T. Therefore, we can say that T is the mid-point of AB. So, we can write -
AT = TB
25 - 3x = 2y - 5
- 3x - 2y = - 5 - 25
-(3x + 2y) = - 30
3x + 2y = 30 ...[1]
RS = 36
RT + TS = 36
2y - 6 + 18 = 36
2y + 12 = 36
2y = 24
y = 12
Substitute y = 12 in [1], we get -
3x + 2 x 12 = 30
3x + 24 = 30
3x = 6
x = 2
Therefore, the value of x = 2
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Each of these sequence or series formulas involves four quantities that are represented by a variable. For each fomula, describe the four quantities.
c. a n = a₁ rⁿ⁻¹
The four Quantities are a1 , r, n , [tex]S_{n}[/tex]
What is a Series:
A series can be highly generalized as the sum of all the terms in a sequence. However, there has to be a definite relationship between all the terms of the sequence.
Arithmetic progression
an = a1 + ( n-1) d
a1 is the first term
d =common difference
an is the nth term
an can be found out if we know the a1 , d and n
b) Arithmetic progression
a1 is the first term
an is the nth term
sn is the sum of the n terms of the series
Sn = n/2 ( a1 + an)
we can calculate sn if we know a1 , an and n
c)Geometric progression
an = a1rn-1
a1 is the first term
an is the nth term
r is the common ratio
we can calculate an if we know a1 , r and n
d)Geometric progression
Sn = a1( 1- rn) / 1 - r
a1 is the first term
r is the common ratio
sn is the sum of the n terms of the series
If we know a1 , r and n we can calculate [tex]S_{n}[/tex].
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You are driving to a vacation spot with your family that is 1500 miles away. Including rest stops, you take 42 hours to get the the vacation spot. You drove on an average speed of 42 miles per hour. How many hours were you NOT driving? Please include an algebraic equation.
Answer:
Below in bold.
Step-by-step explanation:
The time you were driving = distance / average speed
= 1500/42
= 35.714 hours.
Required equation is
t = 42 - d/s where t = time not driving, d = distance and s = average speed
Time not driving :
t = 42 - 35.714
= 6.286 hours
That is about 6 hours 17 minutes.
What’s the answers to b,c and d for 20 points.
The expression can be simplified as follows:
a. (-4)(-2) -6(2 - 5) = 26
b. 12.7 - 18.5 + 15 + 6.3 - 1 + 28.5 = 43
c. 23 - (17 - 3.4)² + 6 = -155.96
How to solve an expression using PEMDAS rule?The expressions can be solved using PEMDAS rule,
P = Parenthesis
E = Exponential
M = Multiplication
D = division
A = addition
S = Subtraction
Hence,
a.
(-4)(-2) -6(2 - 5) = (-4)(-2) - 6(-3) = 8 + 18 = 26
b.
12.7 - 18.5 + 15 + 6.3 - 1 + 28.5 = -5.8 + 15 + 6.3 - 1 + 28.5 = 9.2 + 6.3 - 1 + 28.5 = 15.5 - 1 + 28.5 = 14.5 + 28.5 = 43
c.
23 - (17 - 3.4)² + 6 = 23 - (13.6)² + 6 = 23 - 184.96 + 6 = -161.96 + 6 = -155.96
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Find the sum of each finite series. Σ⁹ n=1 (-1)ⁿ . . . . 2
The sum of the given finite series is -1
The given series is:
[tex]\sum\limits^9_{n=1} {(-1)^{n}}[/tex]
The summation notation tell us that we need to add each term (-1)ⁿ as n moves from 1 to 9.
Let us expand this summation notation:
n = 1 ⇒ a(1) = (-1)¹ = -1
n = 2 ⇒ a(2) = (-1)² = 1
n = 3 ⇒ a(3) = (-1)³ = -1
We can continue to expand until n = 9, but we can see the pattern. The series can be written as:
[tex]\sum\limits^9_{n=1} {(-1)^{n}}=-1+1-1+1...-1[/tex]
We can see that a(1) and a(2) are cancelled out to each other. This applies to each pair of consecutive odd and even terms. Each term is cancelled out except a(9). Therefore:
[tex]\sum\limits^9_{n=1} {(-1)^{n}}=-1+1-1+1...-1=-1[/tex]
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Which describes myra’s distance as time increases? increasing decreasing zero constant
Myra's distance is increasing as time increases.
Given table showing the time (in minutes) and distance (in miles) :
Time (in minutes) Distance (in miles)
0 0.0
2 0.4
4 0.8
6 1.2
8 1.6
As we can see from the table, when there is an increase of 2 minutes in time, the distance is increasing by 0.4 miles.
So the distance covered by Myra is increasing with increase in time.
The question is incomplete. Find the complete question below:
The table shows the total distance that Myra runs over different time periods. A 2-column table with 5 rows titled Time and Distance Ran by Myra. The first column is labeled Time (minutes) with entries 0, 2, 4, 6, 8. The second column is labeled Distance (miles) with entries 0. 0, 0. 4, 0. 8, 1. 2, 1. 6. Which describes Myra's distance as time increases? increasing decreasing zero constant.
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Position and label each triangle on the coordinate plane. (Lesson 4-8)
Right ΔXYZ with hypotenuse XZ, Z Y is twice X Y , and XY is b units long.
Insert the triangle into the first quadrant. Z's y-coordinate is 0 because it is on the x-axis. Because the leg is 3b units long, its x-coordinate is 3b. Y's X-coordinate is 0 because it is on the y-axis. Because the leg is b units long, its y-coordinate is b.
What is a triangle with coordinates?
The term triangular coordinates can refer to at least three related systems of coordinates in the Euclidean plane: a special case of barycentric coordinates for a triangle, also known as a ternary plot or areal coordinates, among other things.
Because this is a right triangle, two of its sides can be found on the axes. Placing the triangle's right angle at the origin will allow the two legs to be parallel to the x- and y-axis.
Insert the triangle into the first quadrant. Z's y-coordinate is 0 because it is on the x-axis. Because the leg is 3b units long, its x-coordinate is 3b. Y's X-coordinate is 0 because it is on the y-axis. Because the leg is b units long, its y-coordinate is b.
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HELP How do i calculate the surface area
Answer:
384, 576
Step-by-step explanation:
The surface area is
[tex]2(12 \cdot 6+12 \cdot 6+6\cdot 8)=384[/tex]
The volume is
[tex](12)(8)(6)=576[/tex]
Write an algebraic expression that models each word phrase.
the quotient of the sum of 2 and a number b , and 3
The algebraic expression of the word phrase "The quotient of the sum of 2 and a number b and 3" is [tex]\frac{2+b}{3}[/tex]
Given
The word phrase
"The quotient of the sum of 2 and a number b and 3"
Sum off 2 and a number b = 2+b
Then the quotient of the sum of 2 and a number b and 3 = [tex]\frac{2+b}{3}[/tex]
Hence ,the algebraic expression of the word phrase "The quotient of the sum of 2 and a number b and 3" is [tex]\frac{2+b}{3}[/tex]
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osslyn is thinking of a number, n and she wants her sister to guess the number. Her first clue is that eight less than two times her number is between two and six (inclusive). Write a compound inequality that shows the range of numbers that Josslyn might be thinking of.
The required number that is guessed is 2x - 8 where inequality 2 < x < 6.
Given that,
Osslyn is thinking of a number, n.
Her first clue is that eight less than two times her number is between two and six (inclusive).
To write a compound inequality that shows the range of numbers that Josslyn might be thinking of.
Inequality can be defined as the relation of the equation containing the symbol of ( ≤, ≥, <, >) instead of the equal sign in an equation.
Here,
Let the number be x,
According to the question,
Gusset number = 2x - 8, where x is between 2 and 8 implies
2 < x < 6
Thus, the required number that is guessed is 2x - 8 where inequality 2 < x < 6.
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Suppose a is a 57 matrix. How many pivot columns must a have if its columns span ? why?.
There must be pivot columns in the matrix. "A has a pivot place in every row" and "A's columns span an R5" seem to be logically equivalent.
What is defined as pivot columns?When a matrix has been in row-echelon form, the first nonzero entry in each row is referred to as a pivot, as well as the columns wherein pivots appear are referred to as pivot columns.
If two matrices in row-echelon form seem to be row-equivalent, their pivots are in the exact same locations.In the question asked, if the column of the 5x7 matrix is equal to R5, and the A span is equal to R5, and the value of A has a pivot for each row, then the position of each pivot in the separate columns of A has the 5 pivot columns.The matrix must contain pivot columns. "A has a pivot position in each row" & "A's columns span an R5" appear rationally equivalent.
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The correct question is-
Suppose A is a 5x7 matrix. How many pivot columns must A have if its columns span R⁵? Why?
Identify what you need to know. Then use the information in the problem to solve.
Which triangles are not necessarily similar?
F. two right triangles with one angle measuring 30°
G. two right triangles with one angle measuring 45°
H. two isosceles triangles
J. two equilateral triangles
Two isosceles triangles are not necessarily similar triangles.
Similar triangles are triangles that have congruent corresponding angles and proportional corresponding sides.
Analyzing each statements:
F. two right triangles with one angle measuring 30°
- these two triangles have angles measuring 90°, 30°, and 60°
- they both have equal angle measurements
∴ they are similar triangles
G. two right triangles with one angle measuring 45°
- these two triangles have angles measuring 90°, 45°, and 45°
- they both have equal angle measurements
∴ they are similar triangles
H. two isosceles triangles
- isosceles triangles are triangles that have two sides of equal lengths
- two isosceles triangles are similar if the angle of one is congruent to the corresponding angle of the other
∴ they are not necessarily similar, unless stated that their corresponding angles are equal
J. two equilateral triangles
- all equilateral triangles of any side lengths are considered similar triangles as each of its corresponding sides are proportional
∴ they are similar triangles
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3m / 6 > 3; m = 8 I know the answer is no but can someone explain why???
Answer:
Statement is true
Step-by-step explanation:
3m
---------- > 3; m = 8
6
3(8)
---------- > 3
6
24
---------- > 3
6
24 ÷ 6 = 4
4 > 3
or
3m
---------- > 3; m = 8
6
3m
---------- > 3 (6)
6 (6)
3m > 18
÷3 ÷3
m > 6
8 > 6
Either way, the statement is true. I have no idea why it would be no. I'm sorry if I wasn't of any help.
the number in this sequence increase by 40 each time
the sequence is continued with the same rule.
which number in the sequence will be closest to 300
The 8th term of the sequence 310 is closest to the term 300.
What is referred as the arithmetic progression?An arithmetic progression is a series of numbers that have a set common difference in between two consecutive numbers (A.P.).
Each term in an arithmetic sequence increases or decreases by adding or subtracting a constant term.
a = 30 for the first term
d = 40, common difference
We solve in what term is closest to 300 in this manner;
300 / 40 = 7.5
Thus, find the 7th and 8th term.
7th is solved by verifying for;
a₇ = a + ( n - 1 ) d
a₇ = 30 + ( 7 - 1 ) 40
a₇ = 30 + 240
a₇ = 270
The 8th term to certify the closest;
a₈ = T7 + d
a₈ = T7 + 40
a₈ = 270 + 40
a₈ = 310
As a result, the 8th term is the closest, with a value of 310.
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The complete question is-
The numbers in this sequence increase by 40 each time 30, 70, 110,The sequence is continued with the same rule. Which number in the sequence will be closest to 300?
V=4πct + 2πc squared solve for t
Step-by-step explanation:
Hope the pictures will help you
find the volume of the cylinder
Area of base:
3 * 9 = 27
27*9 = 243So, 243 is the answer.
Pleaseeee Helppp
mx=n+p for x
Answer:
n – p
x= –––––
m
Hope that helps! Have a good day :)
x+3y-z=2
x+y-z=0
3x+2y-3z=-1
Answer:
add the like terms if there's no like the answer will be 3x+2y-3z=-1
Simplify by combining like terms. 0.5 g+g
The simplification by combining like terms of 0.5g + g is 1.5g.
According to the given question.
We have an expression 0.5g + g .
As we know that, like terms are terms whose variables (and their exponents such as the 2 in x2) are the same. when we combine like terms, such as 2x and 3x, we add or subtract their coefficients.
Since, we have to combine the like terms of the given expression 0.5g + g.
Here 0.5g, and g both are the like terms.
So, we add coeffcients of g to simplify the given expression.
Therefore, the simplification of 0.5g + g is given by
0.5g + g
= 1.5g
Hence, the simplification by combining like terms of 0.5g + g is 1.5g.
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Solve: 212x +41 = 32
I need help plssss
Zahraa is calculating the quotient of 54,379÷289. She set up the long division with the numbers in the correct places. Zahraa says the first division to perform is determining how many whole times 289 divides into 5,437. Is this correct? Explain.
It should be noted that Zahraa saying that the first division to perform is determining how many whole times 289 divides into 5,437 is incorrect.
How to calculate the value?It should be noted that based on the information, Zahraa is calculating the quotient of 54,379÷289 and she set up the long division with the numbers in the correct places.
She said that first division to perform is determining how many whole times 289 divides into 5,437. This is incorrect.
It should be noted that the first thing to do is to find the number of times that 28 will go in 54 and then bring the remainder down and solve till she gets the final value.
In this case, 54,379÷289 will be 188 47/289
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can you please help me? i also need to know how you got the answer pls and thabk u
Answer:
7 degrees
Step-by-step explanation:
Start with the temperature of -7 deg at 6:00 a.m.
The temperature increases 14 degrees in the next 6 hours.
6 hours after 6:00 a.m. is noon.
We are asked the temperature at noon.
At noon, the temperature is 14 degrees higher than -7 deg.
We add the increase, 14 deg, to the starting temperature, -7 deg.
-7 deg + 14 deg = 7 deg
Answer: 7 degrees
Fireworks are shot from a barge in a river There is an explosion circle inside which all n the fireworks will explode. Spectators sit outside â safety circle 800 feet from the center of the fireworks display.
a. Find the approximate circumference of the safety circle.
The approximate circumference of the safety circle is 5026.54825 meters.
What do we mean by a circle?A circle is a shape formed by all points in a plane that are at a given distance from the center. It is the curve traced out by a point moving in a plane so that its distance from a given point remains constant. The radius is the distance between any two points on a circle and the center. Typically, the radius must be a positive number. A degenerate case is a circle with r = 0. Except where otherwise noted, this article is about circles in Euclidean geometry, specifically the Euclidean plane.To find the circumference:
Formula: 2πrRadius = 800 metersSo,
C = 2πrC = 2π800C = 5026.54825Therefore, the approximate circumference of the safety circle is 5026.54825 meters.
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< Exit
1-4: MathXL for School: Additional Practice
Assignment is past due (09/13/22 11:59pm)
A 150-pound person uses 5.6 calories per minute when walking at a speed of 4 mph. How long must a person walk at this speed to use at least 180 calories?
CH
Answer:
32,14 minutes
Step-by-step explanation:
5.6 calories per hour = 5.6 x 60 = 336 calories per hour
So in 1 hour, that person will lose 336 calories
To lose only 180 calories time he should walk = 180/336 hour = 180/336 x 60 = 32,14 minutes
We can figure out our answer is in the ballpark by noting that 336/2 = 168
So to lose 168 calories, the person should walk for 1/2 hour so since 180 is slightly greater than 168, the person should walk for slightly more than half-hour
help please i’ll name you brainliest
Answer: 6 and 27
Step-by-step explanation:
Answer:
Step-by-step explanation:
4x+8= 4(x+2) and that should be the answer if not then i don't know what to do
if p=the mounttain bike's orginal price in dollars, which algebraic expression represents the reduced price ?
Algebraic expression (C) p - 125 represents the reduced price.
What do we mean by algebraic expressions?In mathematics, an algebraic expression is an expression made up of variables and constants as well as algebraic operations (addition, subtraction, etc.). Expressions are made up of terms. Algebraic expressions have at least one variable and at least one operation (addition, subtraction, multiplication, division). For example, 2(x + 8y) is an algebraic expression.So, if p is the mountain bike's original price.
Then, the reduced price will be p - 125.Therefore, algebraic expression (C) p - 125 represents the reduced price.
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Determine whether each infinite geometric series converges or diverges. If the series converges, state the sum. 150+30+6+ . . .
The given infinite geometric series 150+30+6+ . . . is convergent and the sum is 187.5
The given geometric series is:
150 + 30 + 6 + . . .
The common ratio (r) of a geometric series is given by:
r = a(n) / a(n - 1)
Notice that in the given series:
a(1) = 150
a(2) = 30
a(3) = 6
Hence, the common ratio is
r = a(2) / a(1) = 30/150 = 1/5
An infinite geometric series is convergent if 0 < | r | < 1.
Since r = 1/5, then the series is convergent and the sum exists.
Use the sum formula:
S = a(1) / (1 - r)
Substitute a(1) = 150 and r = 1/5 into the formula:
S = 150 / (1 - 1/5)
= 150 / (4/5)
= 187.5
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