two buses leave towns miles apart at the same time and travel toward each other. then the Rate of first bus = 72 mph and Rate of second bus = 62 mph
let first bust travels at x mph
then, 2nd but will travel at ( x - 10) mph
distance travelled by first bus in 2 hours = 2x
distance travelled by 2nd but in 2 hours = 2( x- 10) = 2x - 20
distance between the two is 268 miles
so we can write
2x + 2x - 20 = 268
4x = 288
x = 288 / 4 = 72 mph
rate of first bus = 72 mph
and second bus = 72 - 10 = 62 mph
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PLS HELP WITH THIS ASSIGNMENT OMG ITS SO HARD FOR ME
The new coordinates of each of the triangle coordinates are;
1) A'(-12, 6), B'(3, 9), C'(-9, 18)
2) A'(-2, 1), B'(1/2, 3/2), C'(-3/2, 3)
3) X'(-8, 2), Y'(2, 14), Z'(8, 8)
4) X'(-1, 1/4), Y'(1/4, 7/4), Z'(1, 1)
5) A'(-8, 4), B'(2, 6), C'(-6, 12)
6) X'(-4/3, 1/3), Y'(1/3, 7/3), Z'(4/3, 4/3)
7) X'(-20, 5), Y'(5, 35), Z'(20, 20)
8) A'(-1, 1/2), B'(1/4, 3/4), C'(-3/4, 3/2)
How to carry out dilation in transformation?Dilation is a transformation whereby an image size could increase or even decrease but will retain the same shape as the original one. Therefore, we will simply multiply each coordinate by the scale factor;
The coordinates of both triangles are given as;
Triangle ABC = A(-4, 2), B(1, 3), C(-3, 6)
Triangle XYZ = X(-4, 1), Y(1, 7), Z(4, 4)
1) The dilation transformation of triangle ABC by a scale factor of 3 means we multiply each ABC coordinate by 3 to get;
A'(-12, 6), B'(3, 9), C'(-9, 18)
2) The dilation transformation of triangle ABC by a scale factor of 1/2 means we multiply each ABC coordinate by 1/2 to get;
A'(-2, 1), B'(1/2, 3/2), C'(-3/2, 3)
3) The dilation transformation of triangle XYZ by a scale factor of 2 means we multiply each XYZ coordinate by 2 to get;
X'(-8, 2), Y'(2, 14), Z'(8, 8)
4) The dilation transformation of triangle XYZ by a scale factor of 1/4 means we multiply each XYZ coordinate by 1/4 to get;
X'(-1, 1/4), Y'(1/4, 7/4), Z'(1, 1)
5) The dilation transformation of triangle ABC by a scale factor of 2 means we multiply each ABC coordinate by 2 to get;
A'(-8, 4), B'(2, 6), C'(-6, 12)
6) The dilation transformation of triangle XYZ by a scale factor of 1/3 means we multiply each XYZ coordinate by 1/3 to get;
X'(-4/3, 1/3), Y'(1/3, 7/3), Z'(4/3, 4/3)
7) The dilation transformation of triangle XYZ by a scale factor of 5 means we multiply each XYZ coordinate by 5 to get;
X'(-20, 5), Y'(5, 35), Z'(20, 20)
8) The dilation transformation of triangle ABC by a scale factor of 1/4 means we multiply each ABC coordinate by 1/4 to get;
A'(-1, 1/2), B'(1/4, 3/4), C'(-3/4, 3/2)
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Don has a box of colored pencils . He uses 53 Pencils and has 118 Left in the box. Write an equation showing How many pencils left in the box before he starts drawing.
Answer:
He has 171 colored pencils before drawing
53+118 = c
Step-by-step explanation:
To write the equation:
53+118 = c
171=c
Answer:
x = 53 + 118
Step-by-step explanation:
Now we have to,
→ find and write an equation.
Let's assume that,
→ Total pencils = x
Forming the equation,
→ x = Used pencils + Left pencils
Then the equation will be,
→ x = 53 + 118
→ [ x = 171 ]
Hence, total pencils are 171.
In a group of 42 people, 30 people speak Spanish and 20 people speak French. Who speaks neither of these languages?
The number of people who speaks neither of these languages is 8.
How many people speaks neither of these languages?Set theory is a branch of mathematical logic that studies sets, which can be described informally as collections of objects. Although any object can be collected into a set, set theory as a branch of mathematics is primarily concerned with those that are relevant to mathematics as a whole.
Sets are well-defined collections that are entirely defined by their elements. In this case, in the group of 42 people, 30 people speak Spanish and 20 people speak French, those who speak neither of these languages will be:
= 20 + 30 - 42
= 8
Therefore, 8 people neither speaks the languages.
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The foot of the perpendicular drawn from the point (2, 3) to a line is (3, -1). Find
the equation of the line. Also find the equation of the line parallel to the line and
passing through the origin.
Answer: y=4x-5 y=4x
Step-by-step explanation:
first we find the slope by using
(y2-y1)/(x2-x1)
(-1-3)/(3-2)
-4/1
-4
so we know the slope is -4
y=4x+b
now we can use either point but ill use (2,3)
we substitute to find b
3=4(2)+b
3=8+b
-5=b
so now we know that the y intercept is -5
so put it together
y=4x-5
if it passes through the origin
it would have the y-intercept of 0
so that equation just be
y=4x
and it keeps the same slope
because they are parallel
hope this helped
These five frames show a shape's different positions. Describe how the shape moves to get from its position in each frame to the next.
The motion of the shape in each frame are:
Frame 1 - Initial position of the shapeFrame 2 - Horizontal Translation towards the rightFrame 3 - 90 degree Rotation about its baseFrame 4 - Vertical Translation downwardsFrame 5 - Reflection of the shapeWhat is Rigid transformation?Rigid transformation is a method in which the orientation, size or position of a given object is changed.
Rigid transformation implies either increasing, decreasing or changing the orientation of a given shape. Some types of rigid transformation are: reflection, rotation, translation, and dilation.
i. Reflection is a method in which a given object is flipped about a reference point or line.
ii. Rotation is the process in which a given object is turned about a certain angle in degrees.
iii. Translation involves moving a given object a definite units horizontally or vertically.
iv. Dilation is a process in which the dimensions of a given object is either increased or decreased as required.
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Choose the equation of a line parallel to the given equation and passing through a point P. x + 2 y =5 ; ( 2,-5)
A.) Y = 2 x -4
B.) Y = -1/2x -1
C.) Y = -1/2x -4
D.) Y = -2 x -1
Answer:
The correct answer is C: Y = -1/2x - 4.The slope of the given line is -1/2, so any line that is parallel to it will have the same slope. In order to find the equation of a line with the same slope that passes through the point (2, -5), we can use the point-slope form of the equation of a line.The point-slope form of the equation of a line is:y - y1 = m(x - x1)where m is the slope of the line, and (x1, y1) is a point on the line.In this case, we can plug in the values m = -1/2, x1 = 2, and y1 = -5 to get:y + 5 = -1/2(x - 2)Solving for y, we get:y = -1/2x - 4Therefore, the equation of the line that is parallel to the given line and passes through the point (2, -5) is Y = -1/2x - 4.
Last year a community had 32 incidents of vandalism.
This year they only had 23 incidents of vandalism.
Answer: 22%
Step-by-step explanation:
find an equation of the tangent line to the curve at the given point. y = x3 − 2x + 2, (4, 58)
Answer:Y=10X-16
Step-by-step explanation:
y = x3- 2x 2,( 2, 4)( Given)
Find the first outgrowth, calculate the pitch and find the equation.
We should first know the pitch of the wind at(,4)
pitch at any point on the wind is written by its first outgrowth as
dy/ dx = 3x2- 2
pitch at x = 2
m = 3( 2) 2- 2 = 12- 2 = 10
Equation of a digression is given as
c mx = y
Where m is the pitch
Substituting the values
c 10 × 2 = 4
On farther computation
c 20 = 4
c = 16
The equation of the digression is y = 10 x- 16
Thus, the equation of the digression line to the wind is y = 10x-16
Franklin want to create nack bag for a trip he i going on. He ha 10 granola bar and 6 piece of dried fruit. If the nack bag hould be identical without any food left over, what i the greatet number of nack bag Franklin can make?
Franklin has 10 granola bars and 6 pieces of dried fruit. The greatest number of snack bags Franklin can make is 2 bags.
The factor shared by at least two numbers is known as the common factor. Each of the given numbers is divided exactly by two or more numbers.
Here given granola bar = 10 and dried fruit = 6.
Then, the common factors of 10 and 6 are
1, 2, 3, and 6 are used to represent factors of 6.
1, 2, 5, and 10 are used to represent factors of 10.
2 is discovered to be the biggest common factor between 6 and 10.
Then, the greatest number of snack bags Franklin can make is 2 bags.
The complete question -
Franklin wants to create a snack bag for a trip he is going on. He has 10 granola bars and 6 pieces of dried fruit. If the snack bag should be identical without any food left over, what is the greatest number of snack bags Franklin can make?
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what does your work show about the behavior of the standard deviation of a binomial distribution as the probability of a success gets closer to zero?
The probability of a success gets closer to zero is 15.
What is behavior of the standard deviation ?
The average squared difference between data points and their mean value is called variance, and it is the variance's square root that is used to calculate standard deviation. The symbol for standard deviation can be seen below.
Both the standard deviation and the variance are indicators of dispersion, but the standard deviation is more explicitly the typical distance between a data point and the mean. The majority of the data will be within one standard deviation of the mean. While the variance is not measured in the same units as the actual data, the standard deviation is
If mean deviation is 12, what is its standard deviation?
Lets look the problem .
Given ,
Mean deviation (MD) =12
Here is the inequality to calculate the standard deviation.
6QD=5MD=4SD ,
Where ,QD stands for the Quartile deviation.
SD stands for the standard deviation.
So,
Standard deviation =(5/4)*MD
=(5/4)*12
=15
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a child of a parent with a mutation in collagen and displaying oi will have what probability of also having oi? 25% 50% 75% 100%
A child of a parent with a mutation in collagen and displaying OI will have 50% probability of also having OI.
What is Osteogenesis Imperfecta (OI)?Osteogenesis imperfecta (OI) is an inherited or genetic bone disorder which is present at birth. It is also known as brittle bone disease. A child born with OI may have soft bones which fracture easily, bones which are not formed normally, and other problems. Signs and symptoms may range from mild to severe.
Life expectancy for OI babies vary greatly depending on OI type. Babies with Type II generally die soon after birth. Children with Type III may live longer, but mostly only until around age 10.
About 90% of OI cases are caused by autosomal dominant mutations in the type I collagen genes. Mutations in one or the other of these genes cause the body to make either abnormally formed collagen or too little collagen. Mutations in these genes cause OI Types I through IV.
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Find the percent of sugar in the concentration:
A syrup made of 10kg of water and 2kg of sugar
Answer: 2/12= 16.67% four sig fig
Step-by-step explanation:
Using (mass of sugar)/(total mass)
and total mass equals (mass of sugar) + (mass of water)
get a total mass of 12kg
Therefore percentage is 2/12=1/6=16.666666%
Answer:
The percentage of sugar in the syrup is 16.66...%
Step-by-step explanation:
lmk
Find the x- and y-intercepts of the graph of
x + 2y = 28.
Answer:
(0,14) This is the y intercept.
(28,0) This is the x intercept.
Step-by-step explanation:
Let x = 0
x + 2y = 28
0 + 2y = 28
2y = 28 Divide both sides by 2
x = 14
(0,14) This is the y intercept.
Let y = 0
x + 2y = 28
x + 2(0) = 28
x + 28
(28,0) This is the x intercept.
Which of the following statement is NOT true?
a. Congruent triangles are triangles with corresponding congruent sides.
b. Two triangles with corresponding congruent angles are congruent.
c. Triangles with corresponding congruent sides and an included angle are congruent.
d. Triangles with corresponding congruent angles and an included side are congruentâ
Mr. Kenny teache a ceramic cla. She find that he ha 7/8 pound of clay for a project. The project require 1/6 of a pound. How many project can Mr. Kenny complete without running out of clay?
Mr. Kenny can complete five projects without running out of clay.
The number of projects that can be completed will be calculated using division.
1/6 of a pound of clay is required for number of project = 1
7/8 pounds of clay will be required for number of project = 7/8 ÷ 1/6
Rewriting the fraction with numerator and denominator
Number of projects = (7×6)÷(8×1)
Performing multiplication in numerator and denominator
Number of projects = 42/8
Performing division
Number of projects = 5.25
Rounding off, we get number of projects = 5
Mr. Kenny can complete 5 projects.
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the points in the table lie on a line. find the slope of the line (X. -2, -1, 0, 1) (Y. -10, -6, -2, 2)
Answer: the slope of the line is 4
Step-by-step explanation:
We only need two ordered pairs to find the slope
(-2,-10), (-1,-6)
the slope formula is y2-y1/x2-x1
-6-(-10)/-1-(-2)
-6+10/-1+2
4/1
4
the slope of the line is 4
Answer:
4
Step-by-step explanation:
Knowledge Needed
The slope is the amount the y-value changes on a line when the x-value changes by 1.
Slope Formula: [tex]\frac{y_2-y_1}{x_2-x_1}[/tex]
Question:
We have the points:
(-2,-10)
(-1,-6)
(0,-2)
(1,2)
We only need 2 points to plug into the slope formula. I'll use the first 2.
(-2,-10) ; (-1,-6)
[tex]\frac{-6--10}{-1--2}[/tex]
[tex]\frac{4}{1}[/tex]
4
The restaurant bill you and your friend received was not itemized. You ordered 2 drink refills and the egg breakfast, for a total of $8.40. Your friend ordered 3 refills and the egg breakfast for $9.35.
Write a system of equations for the situation. Use r for the amount charged for a refill and b for the amount charged for the egg breakfast.
Graph the equations in the system.
Use your graph to estimate how much each item cost.
The equations are 2r + b = 8.40 and 3r + b = 9.35. Then the cost of refill and egg breakfast will be $0.95 and $6.50, respectively.
What is a linear equation?A connection between a number of variables results in a linear model when a graph is displayed. The variable will have a degree of one.
The eatery charge you and your companion got was not organized. You requested 2 beverage tops off and the egg breakfast, for a sum of $8.40. Your companion requested 3 tops off and the egg breakfast for $9.35.
Let 'r' be the cost of refill and 'b' be the cost of egg breakfast. Then the equations are given as,
2r + b = 8.40 ...1
3r + b = 9.35 ...2
From equations 1 and 2, then we have
3r - 2r = 9.35 - 8.4
r = $0.95
Then the cost of the egg breakfast will be given as,
2 (0.95) + b = 8.40
b = $6.50
The equations are 2r + b = 8.40 and 3r + b = 9.35. Then the cost of refill and egg breakfast will be $0.95 and $6.50, respectively.
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Find the square root of each number.
√81
√169
Answer:
9, 13
Step-by-step explanation:
√81 = √9 x 9 = 9
√169 = √13 x 13 = 13
Need help Asap 25 points
Graph the solution to this inequality on the number line.
−8+x<−3
Answer:
x< 5
Step-by-step explanation:
See the graph below
6. A car takes 5 hours to cover a distance if it is moving with a
speed of 40 km/hr. Find the time taken by the car if it is
movig with a speed of 50 km/hr.
Answer:
It will take 4 Hours
Step-by-step explanation:
5 x 40 equals 200 (So 200 is the total distance needed to be made)
We can now divde the total distance by how fast the car is moving to get the time.
200 / 50 = 4
So the answer is 4 hours
7. A carpenter has a plank of wood that is 121.92 centimeters
long. The carpenter cuts the plank into 4 equal pieces. About
how long is each piece?
about
centimeters
The length of each wooden plank will be 30.48 cm
What is the length of each wooden plank?A fraction is a portion of a larger whole. The number is expressed in arithmetic as a quotient, which is the numerator divided by the denominator. Both are integers in a simple fraction. A complex fraction contains a fraction in either the numerator or the denominator. A proper fraction has a numerator that is less than the denominator.There are three kinds of fractions. Proper fractions, improper fractions, and mixed fractions are the three types. Fractions are terms that have a numerator and a denominator.Here given,
The total length of the wooden plank is 121.92 centimeters.
Also given that ,
A carpenter cuts the plank into 4 equal parts
=> 121.92 / 4
=> 30.48
Therefore the length of each piece will be 30.48 cm
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Let S be the part of the plane 1x+3y+z=3 which lies in the first octant, oriented upwards. Find the flux of the vector field F=3i+2j+3k across the surface S.
Answer:
Refer to the photo taken.
Step-by-step explanation:
20
Select the correct answer.
What is this expression in simplified form?
2√2-7√18
O A. 84√2
OB. 18√5
O c. 14sqrt6
O D.
D. 84
The Question is based on concept of Simplification and answer to this question is -19√2
What is Simplification?
Simplification is the process of making a task, problem, or system easier to understand and manage. It involves breaking down a concept or problem into simpler parts in order to better understand the whole. Simplification can help streamline a process, making it more efficient and easier to complete. It can also help to make complex topics more accessible to a wider audience. Simplification can also be used to make a difficult problem more manageable, allowing for easier solutions.
Here we are given question 2√2 - 7√8 we can do some simplifications like:
but we know we can write √8 = 3√2
hence putting back in original eqn
2√2 - 7(3√2)
2√2 - 21√2
-19√2
Hence required answer is -19√2 by simplification
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Determine the sign of the solution of
ax+b=cx+d in each situation. Justify your
reasoning with a graph.
a. 0
b. d
Answer:
ax+b=cx+d
Step-by-step explanation:
At a conference, there are 90 math teachers and 75 science teachers. write the ratio of math teachers to science teachers in simplest form.
Answer:
6:5 or [tex]\frac{6}{5}[/tex]
Step-by-step explanation:
[tex]\frac{90}{75}[/tex] Divide by [tex]\frac{15}{15}[/tex]
[tex]\frac{6}{5}[/tex] or 6:5
HELP ME PLEASEEEEEEEE
Answer: Look in the attachment:
Step-by-step explanation: If it was random sampling, it would all be done randomly, barley without doing anything, and NOT doing anything particular, the 4 that are circled (in the attachment) are the ones that I am talking about; they ARE NOT examples of random sampling. If you look at the attachment, you might understand a little more :P
Angles 1 and 7 are what type of angles?
A. Same side interior angles
B. Alternate exterior angles
C. Alternate interior
D. Corresponding angles
Answer:
B. Alternate exterior angles
Step-by-step explanation:
Alternate exterior angles are pairs of angles on the outer side of the two parallel lines but on the opposite side of the transversal. They also have the same degree. So, the answer is B.
12 less than 4 times a number is equal to 64
Answer: x = 19
Step-by-step explanation:
Let's start with what we have, we'll let x = the number:
4x - 12 = 64
Then we add 12 to both sides:
4x = 76
Divide by 4 from both sides:
x = 19
a square has an area of 121 feet square feet. what is the length of each side
Answer: 11 feet
Step-by-step explanation:
The equation for area of square is
area = s^2
So we just need to take the square root of 121, and we will get the answer is 11 ft!
Answer:
11 ft
Step-by-step explanation:
Since the area of the square is 121 (and squares have all four sides the same length), the sides must be 11 feet. Because
11 × 11 = 121
You could show work by using an equation.
Area = s^2
121 = s^2
Square root both sides.
sqrt121 = sqrt(s^2)
11 = s
The side length is 11 feet.
SOMEONE PLEASE HELP I HAVE NO CLUE HOW TO DO THIS!!!!!!!!
Each of 36 students at a school play bought either a cup of orange juice or a sandwich. A cup of orange juice costs $1 and a sandwich costs $3. The total amount collected was $76. How many students bought orange juice, and how many bought a sandwich?
Let x represent the number of students who bought a cup of orange juice and y represent the number of students who bought a sandwich. Then the problem can be represented by this system of equations:
x + 3y = 76
x + y = 36
Answer the questions to solve the problem.
1. Explain what you should do with the two equations to eliminate one of the variables.
2. Find the value of y.
3. Find the value of x.
4. Interpret the solution and check the values in the system.