It takes Tom 90 minutes to reach at the work.
Given,
Total time taken by paul = 45 minutes
Time taken by tom = x
According to the question,
the equation will be -
45 = (1/3)x + 15
On solving,
45 - 15 = (1/3)x
30 = (1/3)x
x = 90 minutes
So, it takes, tom 90 minutes to reach
What is a linear equation?An algebraic equation of the form y=mx+b is referred to as a linear equation. m is the slope, and b is the y-intercept, and all that is involved is a constant and a first-order (linear) term. The variables in the preceding equation are y and x, and it is occasionally referred to as a "linear equation of two variables."
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Describe in words where cube root of 70 would be plotted on a number line.
A Between 3 and 4, but closer to 3
B Between 3 and 4, but closer to 4
C Between 4 and 5, but closer to 4
D Between 4 and 5, but closer to 5
Answer:
C Between 4 and 5, but closer to 4
Step-by-step explanation:
cube root of 70 is 4.1212
An angle measures 84.2° less than the measure of its supplementary angle. What is the measure of each angle?
The measure of the supplementary angles are 48° and 132°.
Let the measure angle be x.
Its supplementary angle will be x + 84
We know that the sum of supplementary angles is 180°.
So, we get the equation as:
x + x + 84 = 180
Combining the like terms, we get that:
2 x + 84 = 180
Subtract 84 from both sides, we get that:
2 x = 180 - 84
2 x = 96
Divide both sides by 2, we get that:
x = 96 / 2
x = 48°
x + 84 = 48+ 84 = 132°
Therefore, we get that, the measure of the supplementary angles are 48° and 132°.
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Which expression is equivalent to (9^-2x3^5)-2?
Answer:
1
Step-by-step explanation:
3^-4 x 3^5
3 - 2
=1
MP Reason Abstractly If y varies directly with x-
direct variation. Then find each value.
9. If y = 14 when x = 8, find y when x = 12.
(-125) power -1/3
Evaluate this with step by step
to determine whether or not number of complaints influences accidents occurring in an area, charles has designed a survey. what is the explanatory variable?
In the survey study, the explanatory variable is: number of complaints .
What is an Explanatory Variable?An explanatory variable can be described as a type of independent variable that is manipulated by the researcher which explains the or predict the differences that occurs in a response variable.
For example, number of complaints is the independent variable that the dependent variable, "accidents that occurs in an area" depends on. That is, it explains or predicts the accidents that occurs in an area.
Therefore, we can conclude that, in the survey study, the explanatory variable is: number of complaints .
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(-7,10) perpendicular to 2x - 3y= -3 using slope-intercept form
y = -3/2x - 20.5 is the line crossing through (-7,10) perpendicular to 2x - 3y= -3
In an equation, parallel lines have the opposite reciprocal slope. In other words, if a line's slope is a positive fraction, its reciprocal slope is negative.
Here given that 2x - 3y= -3
can also be written as
y = 2/3x + 1
Here 2/3 is the slope and 1 is the y-intercept
To find a parallel line to the following equation, use the opposite reciprocal slope and point, then solve using the point-slope formula.
y - y₁ = m(x - x₁)
We have, m = -3/2, x₁ = -7 and y₁ = 10
y - 10 = -3/2(x - (-7))
y - 10 = -3/2(x + 7)
y - 10 = -3/2x - 21/2
y = -3/2x - 21/2 + 10
y = -3/2x - 20.5
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Solve for the value of x in the diagram below.
5) 2(n + 5) = 20
what is the answer need immediately
What is 7+7?
Easy Brainly and points if 2 ppl answer :)
The answer to this question is 14
PLSS HELP :((
will mark brianlist if its the correct answer ty
A leather recliner with a regular price of $795.00 is on sale for 15% off. What is the sale price of the recliner?
Answer:
$675.75
Step-by-step explanation:
To find the sale price of the recliner, we can multiply 15% by the regular price.
15% = 0.15
(0.15)(795.00) = $119.25
This gives us the amount that the sale takes off from the regular price. We can subtract that from the regular price to find the sale price.
795.00 - 119.25 = $675.75
A bonus shortcut way to get our answer would be to subtract 15% from 100%.
100% = 1.00
1.00 - 0.15 = 0.85
This tells us that the sale price is 85% of the regular price. Using this information, we can multiply 85% by the regular price to also get our sale price.
85% = 0.85
(0.85)(795.00) = $675.75
Im doing geometry, I forgot how to do this.
Answer:
12
Step-by-step explanation:
You have a right triangle, so use the Pythagorean theorem.
a² + b² = c²
5² + b² = 13²
25 + b² = 169
b² = 144
b = 12
how can i solve literal equations?
Literal equations are equations containing two or more variables. Our goal is to solve for just one variable with respect to others. If it is known to us that how to solve regular equations, then literal equations are very easy to solve.
Literal equation is also termed as simultaneous equation ,
where more than 1 variable is present and can be solved by inputting value entirely into 1 variable form
For example,
x+ y=6
x-y=2
now putting x=y+2 from the second equation,
y+2+y=6
2y+2=6
y+1=3
y=2
x=y+2=2+2=4
To solve a literal equation means to express one variable with respect to the other variables in the equation.
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Equations that have two or more variables are considered literal equations. Our aim is to solve for a single variable in relation to other variables. Literal equations are fairly simple to solve if we know how to solve regular equations.
Simultaneous equation is another name for a literal equation.
where a problem with more than one variable can be handled by entering all of the values into a single variable form.
For Example :
x + y = 6
x - y = 2
Now putting x = y + 2 from the equation
y + 2 +y = 6
2y + 2 = 6
2y = 6-2
2y = 4
y = 2
Hence,
x = y + 2 = 2 + 2 = 4
To express one variable in relation to the other variables in an equation is to solve it literally.
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Hello I will AWard Brainlist !!! Help its A Math Question Please Help I will AWard Brainlist thanls so much !!!
The lengths 9, 9 / 2 and 9√3 are not part of a 30 - 60 - 90 right triangles. (Correct choice: A)
What set of measures are associated with a 30 - 60 - 90 right triangles?
Herein we must find what set of lengths are part of a 30 - 60 - 90 right triangle. In accordance with the Euclidean geometry, there are the following relationships for the sides of the 30 - 60 - 90 right triangle:
The longest leg is √3 times the length of the shortest leg.The hypotenuse is 2 times the length of the shortest leg.The hypotenuse is 2√3 / 3 times the length of the longest leg.Now we proceed to check if each set of sides belongs to a 30 - 60 - 90 right triangle:
Case 1
The length of the shortest leg of the triangle is 9 / 2, then the lengths of the longest leg and the hypotenuse are 9√3 / 2 and 9, respectively. (False)
Case 2
The length of the shortest leg of the triangle is 4, then the lengths of the longest leg and the hypotenuse are 4√3 and 8, respectively. (True)
Case 3
The length of the shortest leg of the triangle is 7, then the lengths of the longest leg and the hypotenuse are 7√3 and 14, respectively. (True)
Case 4
The length of the shortest leg of the triangle is 5 / 3, then the lengths of the longest leg and the hypotenuse are 5√3 / 3 and 10 / 3, respectively. (True)
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The cost of one pound of grapes, g, is 15 cents more than one pound of apples, a. The cost of one pound of
bananas, b, is twice as much as one pound of grapes. Write an equation that represents the cost of one pound of bananas in terms of the cost of one pound of apples
An equation that represents the cost of one pound of bananas in terms of the cost of one pound of apples is,
⇒ b = 2a + 30
What is Multiplication?
To multiply means to add a number to itself a particular number of times. Multiplication can be viewed as a process of repeated addition.
Given that;
Cost of one pound of grapes = g
Cost of one pound of apples = a
Cost of one pound of banana = b
Since, The cost of one pound of grapes is 15 cents more than one pound of apples.
It can be written as;
g = a + 15 .... (i)
And, The cost of one pound of bananas is twice as much as one pound of grapes.
It can be written as;
b = 2g ..... (ii)
To find an equation that represents the cost of one pound of bananas in terms of the cost of one pound of apples as,
Put the value of g from (i) in (ii) we get,
b = 2 ( a + 15 )
b = 2a + 30
Hence, An equation that represents the cost of one pound of bananas in terms of the cost of one pound of apples is,
⇒ b = 2a + 30
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HELP PLEASE I DON'T UNDERSTAND :[
Answer: the first option i believe
Step-by-step explanation:
Error Analysis A worker in a silver mine descends 78 feet. Use an integer to represent the change in the worker's position.
An integer to represent the change in the worker position is -78
If the worker is descending, he is going down.The change in his position could be marked on a graph by translating the original point down by 60 units. Integers are a set of numbers that include the positive whole numbers (1,2,3,4,5,....), their opposites (-1,-2,-3,-4,-5,...) are zero. This number line shows the integers from -5 to 5 .You can use integers to help represent many real - world situations, such as:Increase and decreases in temperature.Profits and losses of moneyLocations above and below sea level.Hence, An integer to represent the change in the worker position is -78
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a rectangle has perimeter 24 m. express the area a of the rectangle as a function of the length, l, of one of its sides.
The Expression for the Area a of the rectangle as a function of length L is given by A(L) = 12L - L^2 .
Let,
length, L, and the width, W, are components that help determine the area, A, and the perimeter, P of the rectangle. These are given by the following equations
A=LW
P=2L+2W
Given,
Perimeter of the Rectangle = 24m.
We are asked to express the perimeter of the rectangle as a function of the length, L, of one of its sides.
We will first set up the equation of the Perimeter of the rectangle. We can let the width of the rectangle be W.
P = 2L+2W
24 = 2L+2W
12 = L+W
W = 12-L
Since we want to express the Area as a function of L, we have to find the value of W in terms of L. This is so we can eliminate the width in the equation for the Area. The Area as a function of L is as follows.
A(L, W) = LW
A(L) = L(12-L)
A(L) = 12L-L^2
Therefore, the Area as a function of L is given by A(L) = 12L-L^2.
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How can u determine whether a relation represented as an equation is a function
It can be determined that a relation represented as an equation is a function if and only if for each value on x-axis, there is a corresponding value on Y-axis.
which also signifies that for each value of x , there is a value of y which exists and is real.
A function is a mapping from one set to another such that nothing in the first set is mapped to more than one thing in the second set.
Or in simple words if there is no corresponding value of y for any x, then that is not a function.
For example,
[tex]x^{2} +y^{2}[/tex]=1
when the value of x is 0 , then value of y is 1 or -1, Thus, it will not be a function.
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the domain of consists of numbers x for which not equals equals not equals 0 that are in the domains of both f and g. both f and g. either f or g.
The statement is true that the domain of f(x)/g(x) consists of numbers "x" that are in the domains of both f(x) and g(x) for which g(x) is not equal to 0.
A function's area is the set of its available inputs, or the set of enter values for which the characteristic is described. The area is the collection of objects that the system will take delivery of as inputs within the characteristic machine paradigm.For the function f(x)/g(x) to be defined, g(x) must now not be equal to 0.hence, the domain of the characteristic f(x)/g(x) consists of all of the numbers "x" which can be inside the domain names of each the functions f(x) and g(x) for which g(x) is not 0.To learn more about functions, visit :
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The altitude a (in feet) of a plain t minutes after liftoff is given by a= 3400t + 600. How many minutes after liftoff is the plane at an altitude of 21,000 feet?
The number of minutes after liftoff of the plane at an altitude of 21,000 feet is 6 minutes
What is a function?A function can be defined as an expression or law that shows the relationship between a dependent and independent variable.
Given the function;
a= 3400 t + 600
Where;
a is the altitude in feett is the time in minutesIf the altitude is 21000 feet, let's determine the time
Substitute the value into the function
21000 = 3400t + 600
collect like terms
21000 - 600 = 3400t
20400 = 3400t
Make 't' the subject
t = 20400/ 3400
t = 6 minutes
Thus, the number of minutes after liftoff of the plane at an altitude of 21,000 feet is 6 minutes
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place these number from least to greatest
-3
6
3.1
-2.5
1/4 -3/4
water main construction a water main is to be constructed with a 20% grade in the north direction and a 10% grade in the east direction. determine the angle θ required in the water main for the turn from north to east.
The value of the angle θ required in the water main for the turn from north to east is 87.40°.
According to the statement
We have to find that the value of the angle.
So, For this purpose, we know that the
An angle is created when two straight lines or rays meet at a standard endpoint.
From the given information:
a main is to be constructed with a 20% grade within the north direction and a tenth grade within the east direction.
Then
Let n = North
and e = east
Then
using vectors,
n = j + 0.20 k
e = i + 0.25 k
And the
n · e = 1x0 + 0x1 + 0.20×0.25 = 0.05
Now take magnitude then
|n|·|e| = i(1² + 0.20²)·i(1²+0.25²) = 1.105
Now,
E° = arccos((n · e)/|n|·|e|)
E° = arccos(0.05/1.105)
E° = arccos (0.0452)
E° = 87.40°
So, The value of the angle θ required in the water main for the turn from north to east is 87.40°.
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50 points mathamatics please help
Answer:
Option B: 6342
Step-by-step explanation:
Answer: 6342
Step-by-step explanation:
906 x 7 = 6342
Use the Distributive Property to rewrite each expression.
4(x + 2y - 3)
Answer:4x + 8 y -12
Step-by-step explanation:
There were approximately 3.3 * 10 8 people in the united states of america in 2010 the average person ate 1.5 * 10 2 lb of sugar that year approximately how many pounds of sugar were eaten in the us in 2010
Amount of sugar eaten in the US in 2010 = 4.95 x 10¹⁰ lb
Approximate number of people in the United States of America in 2010 = 3.3 x 10⁸
Amount of sugar ate by an average person in US = 1.5 x 10² lb
We have to find an approximate amount of sugar eaten in US in 2010.
It will be the product of the number of people in US and the sugar ate by a person in US.
So, Amount of sugar eaten in the US in 2010 approximately = 3.3 x 10⁸ x1.5 x 10²
= 4.95 x 10¹⁰ lb
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please help me with this Qestion
Answer: 5.5 inches
Step-by-step explanation:
Using the formula for the area of a square, we can plug the known values in and solve.
a = x²
30 = x²
[tex]\sqrt{30 } =\sqrt{x^2}[/tex]
[tex]\sqrt{30 }[/tex] = x
5.477 ≈ x
Now, we will round to the nearest tenth.
5.477 ≈ 5.5 inches
At the end of 1994 Walters Was half as old as his grandmother. The sum of the years in which they were born in 3838. How old will Walter be at the end of 1999?
The age of Walter at the end of year 1999 will be equal to 55 years.
What is algebra ?
Algebra is a branch of mathematics that deals with various symbols and the arithmetic operations such as addition , subtraction , etc.
Let's assume respective age of Walter and Walter's grandmother is x and y years respectively.
In 1994 , age of Walter was :
x = y / 2
or y = 2x
It is also given that the sum of years they were born is 3838.
The year Walter was born = (1994 - x)
The year Walter's grandmother was born :
= (1994 - y)
= 1994 - 2x (∵ y = 2x)
So , we can write an equation to find out Walter's age which is :
1994 - x + 1994 - 2x = 3838
3988 - 3x = 3838
3x = 3988 - 3838
x = 150 / 3
x = 50 years
or the age of Walter in 1994 is 50 years.
At end of 1999 Walter's age will be:
= 50 + 5.
= 55 years
Therefore , the age of Walter at the end of year 1999 will be equal to 55 years.
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an equilateral triangle has three congruent sides that measure 1.5 inches on each side. what is the perimeter of the triangle?
The perimeter of the triangle is 4.5inches.
Equilateral Triangle : can be defined as a triangle having all three sides equal.
Perimeter of triangle is defined as the sum of the lengths of the three side.
Perimeter of triangle is denoted by 3x(side).
Given that the side of the triangle is 1.5 inches
Perimeter = 3x(1.5)
Perimeter=4.5 inches
Therefore , The Perimeter of the triangle is 4.5 inches .
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