The speed of an athlete or a car or bicycle is given by the time it takes the athlete or car to complete a unit distance.
The time it would take runner J to complete 1 mile is 12 minutesReasons:
The time it takes athlete J to run 2/3 miles = 8 minutes
The time it takes athlete H to run [tex]2\frac{3}{4}[/tex] miles = [tex]\frac{1}{2}[/tex] hour
Required:
The time it would take athlete J to run one mile
Solution:
[tex]\displaystyle \frac{2}{3} \ mile \ takes \ runner \ J \ 8 \ minutes[/tex]
Therefore;
[tex]\displaystyle \frac{\frac{2}{3} \ mile}{\frac{2}{3} } \ takes \ runner \ J \ \frac{8 \ minutes}{\frac{2}{3} }[/tex]
[tex]\displaystyle \frac{\left(\frac{2}{3} \ mile \right)}{\left(\frac{2}{3} \right) } = 1 \ mile \ takes \ \frac{8 \ minutes}{\frac{2}{3} } = 8 \ minutes \times \frac{3}{2} = 12 \ minutes[/tex]
1 mile takes 12 minutes
It would take runner J 12 minutes to run 1 mile.
Learn more here:
https://brainly.com/question/16975251
https://brainly.com/question/24835470
Which of the following is the correct equation for this function?
A. v=2x² + x - 2
B. v= 2x^2 - 4x
C. 1= (x+1)(x-2)
D. V+1=2(x - 3)^2
Answer:
B. y = 2x^2 - 4x
Step-by-step explanation:
The point (0, 0) lies on the graph, so the equation has no constant term (the constant is zero). Only one answer choice has this characteristic:
y = 2x^2 -4x
There is a sale on a gallon of milk at the grocery store. The original price was $2.99 and the new price is $2.49. What is the percentage of decrease on the gallon of milk? Round your answer to the nearest whole percent
A) 17%
B) 50%
C) 23%
D) 20%
anwer this question.
no link or u are at risk
Answer:
where's the question? can you post a screenshot
What is the equation of the line in slope intercept form? Help 30 points!
Answer:
y = 2/3x - 7
Step-by-step explanation:
(3, -5) (-3, -9)
and y = -7 when x = 0 from graph
so c = -7
m = -9 - (-5) / -3 - 3
= -4 / -6
= 2/3
line equation is y = mx + c
y = 2/3 x + (-7)
y = 2/3x - 7
[tex]\\ \sf\longmapsto m=\dfrac{-9+5}{-3-3}[/tex]
[tex]\\ \sf\longmapsto m=\dfrac{4}{6}[/tex]
[tex]\\ \sf\longmapsto m=2/3[/tex]
b=-7Now
Equation of line
[tex]\\ \sf\longmapsto y=mx+b[/tex]
[tex]\\ \sf\longmapsto y=\dfrac{2}{3}x-7[/tex]
What is your rate of change if you travel 350 miles in 6 hours
Answer:
58.33 miles per hour
Step-by-step explanation:
[tex]\frac{350Miles}{6Hours} =58.33mph[/tex]
I hope this help you
Please explain step by step.
(Good answers with good explanation only please.)
Answer:
A
Step-by-step explanation:
x= total number of sets bought
y= total cost
Since each set costs 3 dollars, we can represent that with the equation y=3x, and the teacher also had a 2 dollar coupon, so we can subtract 2 from the equation, giving us y=3x-2
So, by looking at the charts, plug in x (the input), and see if the y (output) is the same as the equation represents.
So, the answer is A. To test, plug in the x and see if it gives the right y.
For example, 3 sets bought (x), so it will be represented as,
y=3x-2
y=3(3)-2
y=7
So when 3 is x, y is 7. Which is what answer choice A shows.
What is (8/9)divided by (6/7) and simplified
Answer:
(28/27)
Step-by-step explanation:
Answer:
Exact Form:
28/27
Decimal Form:
1.037
Mixed Number Form:
1 1/27
Step-by-step explanation:
In a large resturanat an average of 2 out of every 5 customers ask for chilies with their meals. A random sample of 15 customers is selected. Find the probability that i. Exactly 7 customers ask for chilies with their meal ii. Less than 3 customers ask for chilies with their meals.
Answer: plz mark me as a brainliest
Step-by-step explanation:
plz mark me as a brainiiest
4.
Which of the following describes the parabola with the equation y = −x2 − 3x + 6?
A. The axis of symmetry is x = −1.5 and the vertex is (−1.5, 8.25).
B. The axis of symmetry is x = 1.5 and the vertex is (1.5, 12.75).
C. The axis of symmetry is x = −1 and the vertex is (−1, −3).
D. The axis of symmetry is x = 0 and the vertex is (0, 6).
Answer:
B. The axis of symmetry is x = 1.5 and the vertex is (1.5, 12.75).
Step-by-step explanation:
I will solve the problem by applying the perfect square trinomial. In this way we obtain the canonical form. Another way would be to derive the function, but I don't know if you're familiar with it.
First: let us take out the common factor: , since we remember that the canonical form is characterized as follows:
Then, it remains:
Then: the coefficient of the variable We divided it between , And we square it (they will be one positive and one negative). In our case:
Let's accommodate terms to make it easier:
Can be written as :
Now, what is underlined is our perfect square trinomial, let us recall its form:
Applying the same principle we are left:
Applying distributive property we get:
Therefore it will have its vertex in:
The axis of symmetry is a straight line that makes the function to be projected being , for this you need some reference point, for the parabola you need the coordinate in of the vertex.
For which the axis of symmetry is .
-1.5
...............................................................................................................................................
Answer:
b
Step-by-step explanation:
−6×(−1)=?minus, 6, times, left parenthesis, minus, 1, right parenthesis, equals, question mark
Answer:
6
Step-by-step explanation:
When you multiply two negative numbers, the result becomes posititve
PLSS HELP ILL GIVE POINTS!!!!
The fee for a cleaning service is described in the table below.
Write an equation to represent the data in the table.
Answer:
y=16x+36
Step-by-step explanation:
cleaning services start at $36 for one hour and add $16 to total price per hour.
16(1)+36=52
16(2)+36=68
16(3)+36=84
16(4)+36=100
I need helpppp ahhhh
Answer:
x=-4
Step-by-step explanation:
[tex]\frac{1}{2}[/tex](4x-6)+x-3=2(x-5)
2x-3+x-3=2x-10
3x-6=2x-10
3x-2x=-10+6
x=-4
How does the equation of a quadratic function in vertex form highlight key features of the function’s graph?
9514 1404 393
Explanation:
Vertex form of a quadratic can be written as ...
a(x -h)² +k = 0 . . . . . . vertex (h, k); scale factor 'a'
First of all, it highlights the vertex (x, y) = (h, k), which is the extreme maximum or minimum of the function. That also tells you the axis of symmetry, (x = h).
Vertex form also shows you the vertical scale factor. The sign of that tells you whether the graph opens upward (positive) or downward (negative). The numerical value of it tells you the vertical distance from the vertex to points ±1 unit either side of the vertex.
The roots of the quadratic will be ...
x = h ±√(-k/a)
These will be complex if the graph does not intersect the x-axis.
Answer:
From the vertex form ()=(−)+ , you can find the vertex (,) and see whether the parabola opens upward (if > ) or downward (if < ). From a graph, you can read the coordinates of the vertex and substitute into the vertex form. With the coordinates of one other point, you can solve the equation to find a and write the equation of the quadratic function in vertex form.
Can someone please scallion or show me what I could do to get this answer?
Answer:
six hundred and five thousand
Step-by-step explanation:
Please help me with this, it’s due today!
Answer:
hello i am new to brainly. i am new to this app im just trynna figure this app
Step-by-step explanation:
HELP IMMA NEED YALLS HELP
Answer:
Discount: $2.10
Final Cost: $11.90
Step-by-step explanation:
14 times 15% is 2.10.
So, you would take that $2.10 and subtract it from $14.00 to get your answer of $11.90
Graph AFGH with vertices F(-2,2), G(-2,-4), and H(-4,-4) and its image after the similarity transformation.
Rotation: 180° about the origin
Dilation: center (2,-2) and k = 2
Answer:
i think its 5
Step-by-step explanation:
im not sure if its 5 or not but im guessing
Which list of ordered pairs represents a function?
A.(0,4), (1, 2), (1,3), (2, 4)
B.(0,4), (0, 2), (1,3), (2, 4)
C.(1,4), (2, 2), (4,3), (3, 4)
D.(2, 2), (0, 2), (1,3), (2, 4)
bearing in mind that a function never has X-repeats, or namely the 1st value of each coordinate is never repeated, let's check these ones, who has an X-repeat and doesn't, Check the picture below.
Are fractions reversible? why or why not
Answer:
Yes
Step-by-step explanation:
if you think of a slope equation, for example y= 3x + 2, if you do the opposite reciprocal, you would get-1/3 because you flip it around, and you flip the sign.
if g= 57 and f= 54 find h
Answer:
It's D
Step-by-step explanation:
3. Which expression is equivalent to
5x – 30?
Answer:
5x-30=5(x-6)
Step-by-step explanation:
Write an Integer for the situation,
300 feet below sea level
A -300
B 600
C -600
D 300
Answer: A. -300
Step-by-step explanation: I hope this helps!
A bank teller has 54 dollar bills totaling $780 in her cash drawer. Her drawer has 5 and 20 dollar bills. How many 5 dollar bills are there?
Answer:
156 5 dollar bills
Step-by-step explanation:
1. Describe the difference between a relation and a function.
Answer:
The difference between a relation and a function is that a relationship can have many outputs for a single input, but a function has a single input for a single output. This is the basic factor to differentiate between relation and function. Relations are used, so those model concepts are formed.
An isolates right triangle has a hypotenuse of 6. Find the
length of the leg. Round to the nearest tenth.
Check the picture below.
[tex] {x}^{2} + {x}^{2} = {6}^{2} \: \: \: (by \: \: pythagoras \: \: \: theorem) \\ = > {2x}^{2} = 36 \\ = > {x}^{2} = \frac{36}{2} \\ = > {x}^{2} = 18 \\ = > x = \sqrt{18} \\ = > x = \sqrt{2 \times 3 \times 3} \\ = > x = 3 \sqrt{2 } \\ = > x = 4 .2[/tex]
Answer:
Answer:The length of the leg is 4.2 units.
Hope you could get an idea from it.
Doubt clarification - use comment section.
RS = 2x + 10
ST = x - 4
RT = 21
Answer:
x = 5
Step-by-step explanation:
RS +ST = RT
2x + 10 + x - 4 = 21
2x + x + 10 - 4 = 21 {Combine like terms}
3x + 6 = 21
Subtract 6 from both sides
3x = 21 - 6
3x = 15
Divide both sides by 3
x = 15/3
x = 5
Which statement about the two triangles is this correct
Answer:
option 1 is correct .. triangle ABC is congruent to DEF..
Identify the slope (m) y-intercept (b) of the table below. Then, construct the linear equation for the table below in the form f(x)=mx+bf(x)=mx+b
Answer:
m= -1
y intercept= 1
y= - x + 1
Step-by-step explanation:
b. Convert kilograms to grams.
18.2 kilograms = __*(
X
x-
X
grams
Answer:
18.2 kilograms =
18,200 grams
An arts academy requires there to be 5 teachers for every 95 students and 6 tutors for every 48 students. How many students does the academy have per teacher? Per tutor? How many tutors does the academy need if it has 78 students?
(no link)
Answer:
10 tutors
Step-by-step explanation:
48/6 = 8 student/tutor
78/8 = 9.75 tutors
10 tutors
