Answer:
Step-by-step explanation:
for 182 miles you need 14 gallons
??????? 8 gallons
8/14=x/182
x=182*8/14
x miles=104 miles
Bill started west on road u. S. 50, riding a bicycle at an average rate of 9 mph. Four hours later charles started after bill on a motor cycle and overtook him in 2 hours. What was charles' rate? which equation could be used to solve for charles' rate if it is represented by x? 6 x = 54 2 x = 54 2 x = 36.
The equation could be used to solve for charles' rate if it is represented by x is 2x=54.
In the given question wehave to find the equation could be used to solve for charles' rate if it is represented by x.
Bill riding a bicycle at an average rate of 9 mph.
Charles' rate is x.
So the relative rate = x−9 mph
Distance traveled by Bill in 4 hours = 9*4 =36 mph
Charles' overtook Bill in 2 hours. So
Relative Rate = Distance/Time
x−9=36/2
Multiply by 2 on both side. We get
2(x−9)=36
Simplifying
2x−18=36
Add 18 on both side, we get
2x=36+18
2x=54
Hence, the equation could be used to solve for charles' rate if it is represented by x is 2x=54.
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Find the slope of a line that passes through the points (-2,6) and (8, 4)
In order to calculate the slope of a line that passes through the points (-2, 6) and (8, 4), we can use the formula:
\(m=\frac{y_2-y_1}{x_2-x_1}\)Where (x1, y1) and (x2, y2) are the points coordinates. So we have:
\(\begin{gathered} m=\frac{4-6}{8-(-2)} \\ m=\frac{-2}{8+2} \\ m=\frac{-2}{10} \\ m=-\frac{1}{5} \end{gathered}\)So the slope of the line is -1/5.
Megan is collecting cans for a food drive. The number of cans she has collected so far is shown in the table. Which number of cans collected on day 6 will give Megan’s data a mean absolute deviation of 8.3?
A) 50
B) 56
C) 60
D) 66
Answer:
Step-by-step explanation:
c
For this question it would have helped to have a graph but, the answer is 50. Hope this helps
please help this is for a grade so this is very important
PLS HELP! If Cyrus knows that △ABC∼△EDC and AB¯¯¯¯¯¯¯¯∥ED¯¯¯¯¯¯¯¯, how can he prove that line m passing through AB¯¯¯¯¯¯¯¯ has the same slope as line l passing through ED¯¯¯¯¯¯¯¯?
Answer:
AB and DE are parallel because they have the same slope.
Step-by-step explanation:
Slope of the line AB :
\(=\frac{\text{rise} }{\text{run} } =\frac{CA}{-BC} =\frac{12}{-8} =-\frac{3}{2}\)
Slope of the line DE :
\(=\frac{\text{rise} }{\text{run} } =\frac{CE}{-DC} =\frac{9}{-6} =-\frac{3}{2}\)
Based on this picture, can you help solve the drop down
Given:
A graph of bell peper patch is given as below
Find:
we have to find the Maximum possible area of bell peper patch represented by the function p corresponding to the length of the tomato patch x.
Explanation:
From the given graph of function p(x), it is observed that the function has maximum value at x = 6.
Therefore, when x = 6, we get
\(\begin{gathered} p(6)=-0.5(6)^2+6(6) \\ p(6)=-0.5\times36+36 \\ p(6)=-18+36 \\ p(6)=18 \end{gathered}\)as the function p represents the area of the bell peper patch,
Therefore, Maximum possible area of the bell peper patch is p = 18 square feet, when the length of the zomato patch is x = 6 feet.
A stack of 30 bills consists of 1 dollar bills and 5 dollar bills. If the value is $74, how many 1 dollar bills are there?
Answer:
19 1-dollar bills
Step-by-step explanation:
We will call the number of 1 dollar bills "a"
We will call the number of 5 dollar bills "b"
a + b = 30 (the number of 1 dollar bills + the number of 5 dollar bills = 30 bills in total)
1a + 5b = 74 ("a" 1 dollar bills are worth 1a dollars, and "b" 5 dollar bills are worth 5b dollars. In total they are worth 74 dollars)
Next, you can "solve for a variable" in the first equation to plug into the second equation
b = 30 - a (move "a" to the other side, now "b" is equal to 30 - a)
1a + 5(30-a) = 74 (substitute "b" in the second equation for the new value of "b" you found in the previous step)
1a + 150 - 5a = 74 (distribute out 5(30-a) to get 150 - 5a)
-4a = 74 - 150 (combine like terms)
-4a = -76 --> a = 19 (simplify the right side, and divide both sides by -4 to get answer)
Refer back to the first sentence of the explanation where we said the variable "a" equals the number of $1 bills there are. Therefore, there are 19 $1 bills.
what is a multiplication equation that has a solution of 12
Answer:
4 x 3 = 12
Step-by-step explanation:
12 x 1 = 12
6 x 2 = 12
Write an algebraic equation and solve. Lisa needed to make a fruit salad. She bought 5 oranges for x dollars and 2 packs of strawberries for $5.00 each. She spent a total of $20.25. What is the price of 1 orange?
Answer:
The cost of 1 orange is $2.05.
Step-by-step explanation:
Lisa needed to make a fruit salad. She bought 5 oranges for x dollars and 2 packs of strawberries for $5.00 each. She spent a total of $20.25.
Cost of 5 oranges = $5x
Cost of 2 packs of strawberries = 2×5 = $10
ATQ,
5x + 10 = 20.25
Subtract 10 both sides
5x + 10 -10 = 20.25-10
5x = 10.25
x = 2.05
So, the cost of 1 orange is $2.05.
If a circle has a radius of 10 how do u find the area
Answer:
A = 628.32
Step-by-step explanation:
Area of a circle = 2\(\pi\)\(r^{2}\)
A = 2 x \(\pi\) x \(10^{2}\)
A = 628.32
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can you help me with this, please?
help please I need help
Answer:
a is 16 yards hope this helps
Step-by-step explanation:
A 170-foot tall antenna has 4 guy-wires connected to the top of the antenna, and each guy-wire is anchored to the ground. A side-view of this scenario is shown.One of the guy-wires forms an angle of α=0.33 radians with the antenna and the opposing guy-wire forms an angle of β=0.43 radians with the antenna.What is the horizontal distance between anchor 1 and the base of the antenna? ____feet What is the horizontal distance between anchor 2 and the base of the antenna?_____ feet What is the distance between anchor 1 and anchor 2? ____feet
Let's label the diagram with the information provided. The diagram would look like:
What is the horizontal distance between anchor 1 and the base of the antenna?This is labeled as x.
With respect to angle alpha, the side x is opposite and the antenna is the side adjacent.
Thus, we need the trig ratio tan to solve for "x". Shown below:
\(\begin{gathered} \tan \alpha=\frac{x}{170} \\ \tan (0.33)=\frac{x}{170} \\ x=170\times\tan (0.33) \\ x=58.23 \end{gathered}\)Answer: 58.23 feet
What is the horizontal distance between anchor 2 and the base of the antenna?
This is labeled as y.
With respect to angle beta, the side y is opposite and the antenna is the side adjacent.
Thus, we need the trig ratio tan to solve for "y". Shown below:
\(\begin{gathered} \tan \beta=\frac{y}{170} \\ \tan (0.43)=\frac{y}{170} \\ y=170\times\tan (0.43) \\ y=77.97 \end{gathered}\)Answer: 77.97 feet
What is the distance between anchor 1 and anchor 2?
The distance between Anchor 1 and Anchor 2 is "x + y". We already found x and y. Let's do the sum:
\(\begin{gathered} x+y \\ =58.23+77.97 \\ =136.2 \end{gathered}\)Answer: 136.2 feet
3. An ELA test is worth 100 points. There are a total of 26 questions. They are spelling word questions that are worth 2 points each and vocabulary word questions worth 5 points each. How many of each type of question are there? *
Answer:
There are 10 two point questions and 16 five point questions.
Step-by-step explanation:
x = the number of 2 points questionsy = the number of 5 points questionsx + y = 262x + 5y = 100x = 10 two points questionsy = 16 five points questions1. State 3 importance of studying mathematics in economics. 2. List 5 mathematical tools used in economics
The means to study and analyze economic phenomena, formulate economic models, make predictions, and derive policy recommendations.
1. Importance of studying mathematics in economics:
a. Modeling and Analysis: Mathematics provides the tools and techniques for constructing models that represent economic phenomena.
These models help economists analyze and understand complex economic systems, predict outcomes, and make informed decisions.
b. Quantitative Analysis: Economics involves analyzing numerical data and making quantitative assessments. Mathematics equips economists with the necessary skills to handle and manipulate data, perform statistical analysis, and draw meaningful conclusions from empirical evidence.
c. Logical Reasoning and Problem Solving: Mathematics trains students to think critically, logically, and abstractly. These skills are essential in economics, where students need to formulate and solve economic problems, derive solutions, and interpret results.
2. Mathematical tools used in economics:
a. Calculus: Calculus plays a crucial role in economics by providing techniques for analyzing and optimizing economic functions and models. Concepts such as derivatives and integrals are used to study economic relationships, marginal analysis, and optimization problems.
b. Linear Algebra: Linear algebra is employed in various economic applications, such as solving systems of linear equations, representing and manipulating matrices, and analyzing input-output models.
c. Statistics and Probability: Statistics is used to analyze economic data, estimate parameters, test hypotheses, and make inferences. Probability theory is essential in modeling uncertainty and risk in economic decision-making.
d. Optimization Theory: Optimization theory, including linear programming and nonlinear optimization, is used to find optimal solutions in various economic problems, such as resource allocation, production planning, and utility maximization.
e. Game Theory: Game theory is a mathematical framework used to analyze strategic interactions and decision-making among multiple agents. It is widely applied in fields such as industrial organization, microeconomics, and international trade.
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√3x2+2x-√3
how can we solve
Answer:
\(x = \sqrt{3 \frac{ - 1}{3} } \)
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So, what i got was 24 and I'm not very sure if its correct. I'm very sorry if I'm wrong.
This was how I got 24:
Perimeter= 12+2+8+2= 24
height up to 35,000 millimeters convert it's height in meters
Answer:
35000/1000 = 35m height
Answer: 35m
Step-by-step explanation: 35000mm -m
1m = 1000mm
therefore, 35000/1000
= 35m
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PLEASE ANSWER THIS ASAP, 15 POINTS!
Answer:
The second one the amount of monthly sales
Step-by-step explanation:
The 2000 is the total
What are complex integers ?
Answer:
In mathematics, a complex number is a number that can be expressed in the form a + bi, where a and b are real numbers, and i is a symbol, called the imaginary unit, that satisfies the equation i² = −1. Because no real number satisfies this equation, i was called an imaginary number by René Descartes.
Step-by-step explanation:
Complex Integer
(or Gaussian integer), a number of the form a + bi, where a and b are integers. An example is 4 – 7i. Geometrically, complex integers are represented by the points of the complex plane that have integral coordinates.
Complex integers were introduced by K. Gauss in 1831 in his investigation of the theory of biquadratic residues. The advances made in such areas of number theory as the theory of higher-degree residues and Fermat’s theorem through the use of complex integers helped clarify the role of complex numbers in mathematics. The further development of the theory of complex integers led to the creation of the theory of algebraic integers.
The arithmetic of complex integers is similar to that of integers. The sum, difference, and product of complex integers are complex integers; in other words, the complex integers form a ring.
Answer:
An immediate consequence of the definition of arithmetical operations on complex numbers is that the sum, the difference, and the product of two or more complex numbers.
Step-by-step explanation:
The formula for the volume of a cylinder is V = srh.
Solve v = rn for h, the height of the cylinder.
Answer:
A
Step-by-step explanation:
Have a great summer :)
Which describes the cross section of a square prism that passes through vertices A, B, and C?
The cross-section from any side in a square prism is always square.
What is cross-section?A cross-section is the non-empty intersection of a solid body in three-dimensional space with a plane, or the analog in higher-dimensional spaces. Cutting an object into slices creates many parallel cross-sections.
Cross-section of a square prism :-
The cross-section of a square prism is a square. Since a square prism has its faces shaped in square and all the edges of the square prism are equal in length.
Therefore, when we cut the cube by a plane, we get a square shape.
Hence, the cross-section from any side in a square prism is always square.
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Determine the vector equation of each of the following planes.
b) the plane containing the two intersecting lines r= (4,7,3) + t(2,4,3) and r= (-1,-4,6) + s(-1,-1,3)
To find the vector equation of the plane containing the two intersecting lines, we can first find the normal vector of the plane by taking the cross product of the direction vectors of the two lines. The normal vector will be orthogonal to both direction vectors and thus will be parallel to the plane.
Direction vector of the first line: (2, 4, 3)
Direction vector of the second line: (-1, -1, 3)
Taking the cross product of these two vectors, we get:
(2, 4, 3) x (-1, -1, 3) = (9, -3, -6)
This vector is orthogonal to both direction vectors and thus is parallel to the plane. To find the vector equation of the plane, we can use the point-normal form of the equation, which is:
N · (r - P) = 0
where N is the normal vector, r is a point on the plane, and P is a known point on the plane. We can choose either of the two given points on the intersecting lines as the point P.
Let's use the point (4, 7, 3) on the first line as the point P. Then the vector equation of the plane is:
(9, -3, -6) · (r - (4, 7, 3)) = 0
Expanding and simplifying, we get:
9(x - 4) - 3(y - 7) - 6(z - 3) = 0
Simplifying further, we get:
9x - 3y - 6z = 0
Dividing by 3, we get:
3x - y - 2z = 0
Therefore, the vector equation of the plane containing the two intersecting lines is:
(3, -1, -2) · (r - (4, 7, 3)) = 0
or equivalently,
3x - y - 2z = 0.
Write two numbers that multiply to the value on top and add to the value on bottom. -60−60 -4−4 \times× ++
Answer:
The two numbers are 6 and -10
Step-by-step explanation:
Given
\(Product = -60\)
\(Sum =-4\)
Required
Two numbers that satisfy the above
Let the two numbers be x and y.
So:
\(x * y = -60\)
\(x + y = -4\)
Make x the subject
\(x = -4 - y\)
Substitute \(x = -4 - y\) in \(x * y = -60\)
\((-4 -y) * y = -60\)
Open bracket
\(-4y -y^2 = -60\)
Rewrite as:
\(y^2 + 4y - 60 = 0\)
Split
\(y^2 + 10y - 6y - 60 = 0\)
Factorize
\(y(y + 10) - 6(y + 10) = 0\)
Factor out y + 10
\((y - 6) (y + 10) = 0\)
Solve for y
\(y -6=0\ or\ y+10=0\)
\(y =6\ or\ y=-10\)
Recall that:
\(x = -4 - y\)
So:
\(x = -4-6= -10\)
or
\(x = -4--10= 6\)
So:
\(y =6\ or\ y=-10\)
\(x = -10\ or\ x =6\)
The two numbers are 6 and -10
There are several different kinds of vehicles on a used car lot, so the owner makes a list of how many of each vehicle he has.
motor scooters
8
minivans
24
station wagons 17
SUVs
1
motorcycles
1
What is the probability that a randomly selected vehicle will be a minivan?
Write your answer as a fraction or whole number.
P(minivan) =
write
Step-by-step explanation:
Write the difference between hardware and software
Type an equation for the
following pattern.
X
1
2
3
4
S
Y
3
4
5
6
7
y=[? ]x+[ ]
Answer:
y = x + 2
Step-by-step explanation:
change in y is 1
change in x is 1
ratio of change in y to change in x is 1
y = mx + c, where m = 1, y = 1x + c
substituting x = 1 and y = 3
in the equation y = x + c, we have c = 2.
therefore y = x + 2
3 9/12 + (4 7/12 + 5/12) = 3 9/12 + ____?
Answer:
5
Step-by-step explanation:
4 7/12 + 5/12 = 4 12/12 which equals 5
Answer:
3 9/12 + (4 7/12 + 5/12) = 3 9/12 + 5
Step-by-step explanation:
pls help me TwT than u very much
Answer:
The answer is C
Step-by-step explanation:
Discrete is where its a whole number and does not continue.
There can only be a whole number of people. there cannot be half a person.
I hope this helped and if it did I would appreciate it if you marked me Brainliest. Thank you and have a nice day!
Rich also has £400 pounds invest 3% compound interest . How many years does he need to invest the money to get at least £475
Answer: 6 years
Step-by-step explanation:
Formula to calculate compound amount: \(A=P(1+r)^t\), where P= Principal , r=rate of interest, t= time
Given: P = £400, r = 3% = 0.03 , A= 475
Required equation: \(400(1+0.03)^t\geq475\)
\(400(1.03)^t\geq475\\\\\Rightarrow\ (1.03)^t\geq\dfrac{475}{400}\\\\\Rightarrow\ (1.03)^t\geq1.1875\)
Taking log on both sides , we get
\(t \log 1.03\geq\log1.1875\\\\\Rightarrow\ t(0.0128372)\geq(0.0746336)\\\\\Rightarrow\ t\geq\dfrac{0.0746336}{0.0128372}=5.81385\approx6\)
Hence, he needs to invest the money for 6 years to get atleast £475.
Please help me ima give Brainly and a like thank you
Answer:
29%
Step-by-step explanation:
There are 4+6+2+2 = 14 male students
P( freshman given that they are male) = freshman/ male students
= 4/14
=.285714286
28.5714286
To the nearest whole percent = 29%