Answer:
Rick: 2 miles
Tina: 1,5
Step-by-step explanation:
60mn=1h
reck: 1/2x60÷15=2
tina: 1/4x60÷10=1,5
The distance each hiked in 1 hour is for Tina 3/2 miles and for rick 1/2 miles.
What is distance?The distance of an object can be defined as the complete path travelled by an object .Distance is a scalar quantity that refers to "how much ground an object has covered" during its motion.
Given:
Rick hiked 1/2 mile every 15 minutes or 1/4 hour.
Tina 10 minutes to hike 1/4 mile.
We have to find the distance each hiked in 1 hour.
According to given question we have
Rick:
1/2 miles= 15 minutes or 1/4 hour
1 miles= 1/4*2=2 hour
2 hour =1 miles
1 hour=1/2 miles
Tina:
1/4 miles = 10 minutes or 10/60=1/6 hour
1 miles= =1/6*4=2/3 hour
2/3 hour=1 miles
1 hour = 1*3/2=3/2 miles
Therefore, the distance each hiked in 1 hour is for Tina 3/2 miles and for rick 1/2 miles.
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Jameson is leading a fundraiser to raise money for a river cleanup event. So far, he has collected $34.16 towards his goal of $220. Jameson uses the
progress bar to chart the money collected for the fundraiser.
River Cleanup Fundraiser Progress Bar
$34.16
$0
$20
$40
$60
$80 $100 $120 $140 $160 $180 $200 $220
What value represents the midpoint of the amount of money that Jameson has not yet collected?
$92.92
$110.00
O $127.08
O $144.16
A father is ten times as old as his daughter. In 5 years he will be just five times as old as she will be. How old are they now?
Answer:
The daughter is 4, the father is 40
Step-by-step explanation:
If the daughter is 4 then the father is 40, 10 *4 = 40
in five years the daughter will be 9, 9 * 5 = 45
Answer:
The daughter is 4, the father is 40
Step-by-step explanation:
If the daughter is 4 then the father is 40, 10 *4 = 40
in five years the daughter will be 9, 9 * 5 = 45
An investment that you bought for________ and sold for________ made a profit.
A. $700; $600
B. $600; $500
C. $700; $500
D. $600; $700
Answer:
D: $600;$700
Step-by-step explanation:
If you made a profit by selling it then you got more money in return.
Could I please have BRAINLIEST.
A cup of coffee at 93 degrees Celsius is placed in a room at 23 degrees Celsius. Suppose that the coffee cools at a rate of 1 degrees Celsius per minute when the temperature of the coffee is 70 degrees. The differential equation describing this has the form dTdt=k(T−A), where A= 23 , and k= -1 . Either from drawing the direction field (try Maple or by hand) or other intuitive means, the limiting value of T should be:__________
Answer:
Step-by-step explanation:
The rate of change of temperature of the coffee with respect to time is expressed by the differential equation
dT/dt=k(T−A) when k = -1 and A = 23. The equation will become:
dT/dt = -(T-23)
If the coffee cools at the rate of 1°C per minute, then dT/dt = -1 and T = 70
Substituting into the equation:
-1 = k(70-23)
-1 = 47k
k = -1/47
k = -0.0213
Substituting k = -0.0213 into the original equation, the differential equation will be:
dT/dt=k(T−A)
dT/dt = -0.0213(T-23)
dT/dt = -0.0213T+0.489
To get the value of T, we will use variable separable method
dt = dT/-0.0213T+0.489
Integrate both sides
t = -0.0213ln(-0.0213T+0.489)
At t = 1 minute
1 = -0.0213ln(-0.0213T+0.489)
1/-0.0213 = ln(-0.0213T+0.489)
-46.95 = ln(-0.0213T+0.489)
Apply exp to both sides
e^-46.95 = e^ln(-0.0213T+0.489)
4.073×10^-21= -0.0213T+0.489
-0.0213T = 4.073×10^-21-0.489
-0.0213T = -0.489
T = 0.489/0.0213
T = 22.96°C
Question
If y varies directly as w and y = 8, when w =
2
find the equation that relates v and w.
Provide your answer below:
FEEDBACK
MORE INSTRUCTION
Content attribution
Given parameters:
y varies directly as w;
This interpreted implies that as y increases, we increases by a certain factor or amount;
So, y ∝ w
y = kw
where k is the constant of proportionality
Now, given that y = 8 and w = 2
Input in the equation to solve for k;
8 = k x 2
Solving k gives, k = 4
Now to the second part,
if v is directly proportional to w;
v = k w
So v = 4w
The equation that relates v to w is v = 4w
Find mGJI
A. 15
B. 75
C. 100
D. 105
Answer: B
Step-by-step explanation:
simplify the following y^-1z^5×y^3z^2
Answer:=y^3z^7y
Step-by-step explanation:
Elijah walked 10 miles in 8 hours what was his walking rate
Answer:
1.25 miles per hour
Step-by-step explanation:
For this problem, we simply need to understand what a rate is. A rate is an expression of a relation between two quantities. In this case, our rate will be miles per hour, since we are given a distance, 10 miles, and a duration, 8 hours. Let's use this formulate
Rate = Distance / Time
Now let's find Elijah's walking rate by plugging in our values into the formula above.
Rate = Distance / Time
Rate = 10 miles / 8 hours
Rate = 5 miles / 4 hours
Rate = (5 / 4) miles per hour (mph)
So, Elijah's walking rate is 5/4 mph. Let's convert this fraction into a decimal. 5/4 is equal to 1.25.
Hence, we can say Elijah's walking rate is either 5/4 mph or 1.25 mph.
Cheers.
What is the constant of proportionality in the equation y=x/9?
0
1/9
8/9
1
Answer: B 1/9
Step-by-step explanation:
What is h2=0.36
I will give 20 points
Answer: Take the root of both sides and solve.
h= 0.6, − 0.6
A questionnaire was sent to 34,000 randomly chosen individuals living in USA asking about their current and past smoking habits. For those who answered the questionnaire, they are tracked in the next 10 year for the death rate. Their data was pulled from the health record database so that if they died, the death is recorded with the diagnosis of the cause of the death. The death rates due to heart disease among the smokers and nonsmokers are then compared to see if smoking causes heart disease. What is the targeted population
Answer: The targeted population is the population of the human being from which the sampling will be done.
Step-by-step explanation:
The target population is the group of individuals where a particular sample will be drawn. It should be noted that sample simply means the people who are going to take part in a particular investigation.
The targeted population is the population of the human being from which the sampling will be done. Since the objective of the experiment is to link effect of smoking and heart disease, human being will be the targeted population.
Write 2/5 and 3/7 so that they have a common denominator
Answer:
14/35 and 15/35
Step-by-step explanation:
Tammy has planted a small, young tree in her yard. To allow for the tree’s growth, she needs 15 feet in all directions around the base of the tree to remain open and unplanted. Which best describes the section of ground surrounding the base of the tree that should remain unplanted?
Answer:
First, remember that a circle of radius R centered in the point (a, b) can be written as:
(x - a)^2 + (y - b)^2 = R^2
Suppose that we can model the yard as a rectangular coordinate axis.
And the tree is planted in the point (a, b)
If we want to have 15 feet in all directions around the base of the tree (15 ft around the point (a, b))
The section that must remain unplanted is:
(x - a)^2 + (y - b)^2 ≤ R^2
Where the ≤ symbol is used because all the interior of the circle must remain unplanted (border included)
The equation that best describes the situation is [tex](x -a)^2 + (y - b)^2 \le 225[/tex]
15 feet in all direction around the base of the tree means that, the radius across the circumference is 15.
So, we have:
[tex]r = 15[/tex]
The situation can then be modeled by the following equation of circle
[tex](x -a)^2 + (y - b)^2 = r^2[/tex]
From the question, we understand that the section remains open and unplanted.
So, the above equation becomes
[tex](x -a)^2 + (y - b)^2 \le r^2[/tex]
Substitute 15 for r
[tex](x -a)^2 + (y - b)^2 \le 15^2[/tex]
Evaluate the exponent
[tex](x -a)^2 + (y - b)^2 \le 225[/tex]
Hence, the equation that best describes the situation is [tex](x -a)^2 + (y - b)^2 \le 225[/tex]
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2x + y = 5
4x - 2y = 6
Answer:
Assuming you want to solve for x,
x = 2
Step-by-step explanation:
2x + y = 5
Solve for y
y = 5 - 2x
4x - 2y = 6
Solve for y
y = -3 + 2x
Since both these equations equal y, they must equal each other.
Make an equation for these to equal each other.
Then solve for x
5 - 2x = -3 + 2x
+ 2x + 2x Add
5 = - 3 + 4x
+ 3 +3 Add
8 = 4x
/4 /4 Divide
2 = x
Can anyone help solve this, please?
Answer:
7822.2222222
Step-by-step explanation:
4400 divied by 4.5% times 8=7822.22222222
1. -3=
IN
2. 27 - 5.0 = -13
3. 4x - 5 = 27
4. ; +5=12
5.3(2x + 3) + 3 = -2 (2-6)
6. 102- 4 (1+4x) = -4(2-3)
Answer:
3. 4x-5=27
4x=27+5
4x=32
x=8
5. 3(2x+3)+3=-2(2-6)
(6x+9)+3=-4+12
6x+9+3=8
6x+12=8
6x=8-12
6x=-4
x=-4/6
x=-2/3
6. 102-4(1+4x)=-4(2-3)
102-4-16x=-8+12
98-16x=4
-16x=4-98
-16x=94
x=94/-16
x=6
Sam decided to lose weight and went on a diet. The figure below depicts a graph, showing how his weight changed during the year. Using this graph, answer the following questions: During which time of the year was Sam losing weight the fastest?
11 - 12 months
Answer:
^
Step-by-step explanation:
It shows on the graph that the lowest slope is at 11 - 12 months.
A heptagon has all equal side lengths.
Which statements are true about the reflectional symmetry of a regular heptagon? Select two options.
It has only 1 line of reflectional symmetry.
A line of symmetry will connect 2 vertices.
A line of symmetry will connect a vertex and a midpoint of an opposite side.
It has 7-fold symmetry.
A line of symmetry will connect the midpoints of 2 opposite sides.
Answer:
answers 3 and 4 ^0^
Step-by-step explanation:
have a good day <3
The correct options are:
It has only 1 line of reflectional symmetry.
A line of symmetry will connect a vertex and a midpoint of an opposite side.
What is a reflection?A reflection is a type of transformation that involves flipping a shape, known as the preimage, over a line, known as the line of reflection, to produce a new shape (called the image). You can picture what would happen if you flipped the form over the line in order to graph a reflection.
A regular heptagon has one line of reflectional symmetry, which passes through the midpoint of one side and the opposite vertex.
This line divides the heptagon into two congruent halves.
Additionally, there are six lines of symmetry that connect a vertex and the midpoint of the opposite side.
Each of these lines bisects the angle at the vertex and divides the heptagon into two congruent parts.
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5. What is the different forms of 5.39?
2 less than the square of a number.
Answer:
n²-2
Step-by-step explanation:
Let's let n stand for a number. 2 less than a square of a number, that means, the result of n²-2 is two less than n². I hope this makes sense!
7∣x−2∣+7=−2∣x−2∣+2
Pls answer
find the sum of first 12 terms of the series 5,9,13,17 ?
(See pic) identify wheather the relation is a function and the correct domain
Answer:
good question
Step-by-step explanation:
Ivanna drove 696 miles in 12 hours. At the same rate, how many miles would she drive in 7 hours?
Answer:
406
Step-by-step explanation:
We need to find the unit rate or how many miles can they drive in 1 hour. So we do 696/12 which is 58. So we have 58 miles in 1 hour. Now we multiply the number of desired hours, 7 and multiply it by 696. Which is 406
A survey of magazine subscribers showed that rented a car during the past months for business reasons, rented a car during the past months for personal reasons, and rented a car during the past months for both business and personal reasons. Round your answers to three decimal places. a. What is the probability that a subscriber rented a car during the past months for business or personal reasons? b. What is the probability that a subscriber did not rent a car during the past months for either business or personal reasons?
Answer:
[tex]P(business\ or\ personal) = 69.8\%[/tex]
[tex]P(Not(business\ or\ personal)) = 30.2\%[/tex]
Step-by-step explanation:
The question has missing details; however, the giving parameters are:
[tex]P(business) = 45.8\%[/tex]
[tex]P(personal) = 54\%[/tex]
[tex]P(both) = 30\%[/tex]
Solving (a): Business or Personal
This is calculated as follows:
[tex]P(business\ or\ personal) = P(business) + P(personal) - P(both)[/tex]
[tex]P(business\ or\ personal) = 45.8\% + 54\% - 30\%[/tex]
[tex]P(business\ or\ personal) = 69.8\%[/tex]
Solving (b): Not business or personal
This is calculated using complements of probability;
[tex]P(Not(business\ or\ personal)) = 1 - P(business\ or\ personal)[/tex]
[tex]P(Not(business\ or\ personal)) = 1 - 69.8\%[/tex]
[tex]P(Not(business\ or\ personal)) = 30.2\%[/tex]
Find the inverse for the relation.{ (-5,7), (-6, -8), (1, -2), (10, 3) }
Answer:
{(7, -5), (-8, -6), (-2, 1), (3, 10)}Step-by-step explanation:
The inverse for the relation (a, b) is (b, a).
Therefore the inverse for the relation
{(-5, 7), (-6, -8), (1, -2), (10, 3)}is
{(7, -5), (-8, -6), (-2, 1), (3, 10)}{(7, -5), (-8, -6), (-2, 1), (3, 10)} is the inverse for the relation { (-5,7), (-6, -8), (1, -2), (10, 3) }.
What are coordinates?A pair of numbers called coordinates are used to locate a point or a form in a two-dimensional plane. The x-coordinate and the y-coordinate are two numbers that define a point's location on a 2D plane.
Given, few coordinates { (-5,7), (-6, -8), (1, -2), (10, 3) }
We need to find inverse relation of these coordinates.
Since, The inverse of a relation is a relation obtained by interchanging or swapping the elements or coordinates of each ordered pair in the relation.
Inverse relation in sets can be defined using the ordered pairs. The domain and range of an inverse relation can be written by swapping the domain and range of that relation. That means the domain of relation will be the range of its inverse, and the range of relation will be the domain of its inverse.
The inverse for the relation (a, b) is (b, a).
Therefore, the inverse for the relation { (-5,7), (-6, -8), (1, -2), (10, 3) } is:
{(7, -5), (-8, -6), (-2, 1), (3, 10)}
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The function h (x) = StartFraction 1 Over x squared + 1 EndFraction is the result of the composition f(g(x)). If g(x) = x2 + 1, what is f(x)
Answer:
B f(x)=1/x
Step-by-step explanation:
edge
help pleaseeeeeeeeeeeeeeeeeeeee
Answer:
Only 2 people out of each class Has overdue books so it will be 14 So it was to high :/
Step-by-step explanation:
Answer: I presume Jasmine is
Step-by-step explanation: if there are 24 due books that means there are 84 student, which isn’t that many
What makes a graph proportional
Answer:
When the graph of the linear relationship contains the origin, the relationship is proportional. A linear equation is an equation whose solutions are ordered pairs that form a line when graphed on a coordinate plane. A relationship may be linear but not proportional and the graph does not pass through the origin.
Step-by-step explanation:
The characteristics of a graph that represents a proportional relationship:
1. Straight Line
2. Passing Through the Origin
3. Constant Ratio
4. Linear Equation
A graph is proportional when it represents a proportional relationship between two variables.
In a proportional relationship, as one variable increases or decreases, the other variable changes in a consistent and predictable manner.
The key characteristics of a graph that represents a proportional relationship:
1. Straight Line: The graph of a proportional relationship is a straight line. This means that the points on the graph fall in a straight line, indicating a constant rate of change between the two variables.
2. Passing Through the Origin: In a proportional relationship, the graph passes through the origin (0, 0). This means that when both variables are zero, they are directly proportional to each other.
3. Constant Ratio: The ratio between the values of the two variables remains constant along the entire line. This ratio is often referred to as the "constant of proportionality."
4. Linear Equation: The equation of a graph representing a proportional relationship is in the form y = kx, where "k" is the constant of proportionality.
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Evaluate the function:
f(p) = p2 + 3p + 1 for p = -2.
Answer:
f(-2) = -1
Step-by-step explanation:
f(p) = p^2 + 3p + 1
Let p = -2
f(-2) = (-2)^2 + 3*-2 + 1
= 4 -6 +1
-1
