Answer:
t=d/v +0.25
Step-by-step explanation:
If the speed is v, distance is d and time is t then the equation that shows the total time taken by Alanna in run is t=d/v+0.25.
What is equation?Equation is relationship between two or more variables that are expressed in equal to form. Equation of two variables look like ax+by=c. It is of many types like linear equation, quadratic equation, cubic equation, etc.
How to form equation?We have been given distance d , speed v and time t that Alanna takes and we have to form an equation that shows the total time taken by Alanna in run. We know that,
Speed=Distance/time
We have to just put the values given to us:
v=d/t
t=d/v
But she cools down for 0.25 hours so the above equation will increase by 0.25.
t=d/v+0.25.
Hence the equation that shows the total time taken by Alanna in run is t=d/v+0.25.
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How do I solve this equation by using the quadratic formula 3x^2-12x-27=-6
Answer:
Move all terms to the left side of the equation and simplify.
3x²−12x−21=0
Use the quadratic formula to find the solutions.
(−b±√b²−4(ac))/2a
Substitute the values a=3, b=−12, and c=−21 into the quadratic formula and solve for x.
(12±√(−12)²−4⋅(3⋅−21)0/2⋅3 Simplify => x=2±√11
The result can be shown in multiple forms.
Exact Form: x=2±√11
Decimal Form: x=5.31662479…,−1.31662479…
Step-by-step explanation:
Step-by-step explanation:
The quadratic equation is
x=−b=−√b2−4ac2a
for a quadratic taking the form
ax2+bx+c=0
So for this equation it is
x=−(−12)±√(−12)2−4⋅3⋅112⋅3
x=12±√144−1326
x=12±√4⋅36
x=6±√33
Which graph represents y=1/2(x+4)^2 +1
Lenni has a rectangular garden with a length of 5x-7 and a width of x-2.
Write an expression for the total perimeter in terms of x.
_______
Lenni measured the perimeter to be 66 feet. What is the value of x? Enter a number only in the box below.
_____ feet
Answer:
ths for the points TEHEHEHEHE
Step-by-step explanation:
Answer:
P = 12x - 18, x = 7 feet
Step-by-step explanation:
We know that the formula for the perimeter of a rectangle is:
[tex]P=2l+2w[/tex]
Where l is the length and w is the width. So we just substitute in for variables:
P = 2 (5x - 7) + 2 (x - 2)
We distribute by foiling:
P = 10x - 14 + 2x - 4
Then combine like terms:
P = 12x - 18
This can be further factored to 6(2x - 3) if needed.
Since we know the expression for perimeter, we can just set it equal to 66 feet, like this:
6(2x - 3) = 66
Divide both sides by 6:
2x - 3 = 11
Add 3 to both sides:
2x = 14
Divide both sides by 2:
x = 7 feet
Which expression is equivalent to (144k^2r^14)1/2 for all positive values of k and r?
Answer:
12kr^7
Step-by-step explanation:
Find the value of x in the following figure
Answer:
A
Step-by-step explanation:
The sum of the 3 angles in a triangle = 180°
sum the 3 angles and equate to 180
5x - 6 + 89 + 57 = 180 , that is
5x + 140 = 180 ( subtract 140 from both sides )
5x = 40 ( divide both sides by 5 )
x = 8 → A
what is the perimeter of 6 and 2
Answer:
In order to calculate perimeter, you need to add together the lengths of all four sides of the square. You are given the length of one side. Remember, all sides of a square are equal, so really you already have the measures of each side. Then, you add them together, so 6 + 6 + 6 + 6 = 24 inches.
Step-by-step explanation:
To find the perimeter of a rectangle, add the lengths of the rectangle's four sides. If you have only the width and the height, then you can easily find all four sides (two sides are each equal to the height and the other two sides are equal to the width). Multiply both the height and width by two and add the results.
Answer:
16
Step-by-step explanation:
P=2(L+W)
=2(6+2)
=16
Kian is twice as old
as Xhendric. The sum
of their ages is 36. How
old are they?
(pls answer with solution)
Answer:
12 and 24
Step-by-step explanation:
Klan is 24 and Xhendric is 12
a rectangular lot measures 160 m by 240 m find the area in hectare
Given:
A rectangular lot measures 160 m by 240 m.
To find:
The area in hectare.
Solution:
We know that, the area of a rectangle is
[tex]Area=Length\times width[/tex]
Using this formula the area of the rectangular lot measures 160 m by 240 m is
[tex]Area=160\times 240[/tex]
[tex]Area=38400[/tex]
Therefore, the area of the rectangular lot is 38400 square units.
The author uses paragraph 1 to A) establish his credentials. B) show that science and fun are linked. C) explain how roller coaster carts work. D) tell which parks give the most thrills. Eliminate
The inference shows that the author uses paragraph 1 to B. show that science and fun are linked.
What is an inference?An inference simply means the conclusion that can be deduced from the information given on an excerpt.
In this case, the inference shows that the author uses paragraph 1 to show that science and fun are linked. This was illustrated in the story about roller coasters.
Learn more about inference on:
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Answer:
The correct answer is B
Step-by-step explanation:
I took this test
Anna wants to celebrate her birthday by eating pizza with her friends. For $42.50 total, they can buy p boxes of pizza. Each box of pizza costs $8.50.
Write an equation to match this situation.
Answer:
A.
Step-by-step explanation:
p=5
which letter would be the most meaningful variable for the problem situation the weight of a box increase by 5
2/5 * 2/5 * 2/5
I know it but I’m not sure
Answer:
0.064
Step-by-step explanation:
Use the digit cards only once to complete these multiplications
Answer:
1. 3*2/3=6/9
2. 2*3/2=6/4 I have no idea right now
Step-by-step explanation:
sorry about number 2 :(
PLEASE HELP!! ILL GIVE YOU BRAINLIEST!!
Answer:
because when x ing a positive to a negative it will give you a negative however if you x a negative and a negitive it will give a positive
Step-by-step explanation:
The figure is made up of a parallelogram and a triangle. Find
its area.
11 cm
7 cm
17 cm
I will mark Brainliest!!!!!
Answer:
600
Step-by-step explanation:
PLEASE HELP ME WITH THIS IT IS 12 AM
need help pls explain
Answer:
C. 93°Step-by-step explanation:
WY is the diameter.
WX and XY sum to 180° as half the circle.
Central angle is equal to intercepted arc:
mXY = m∠XVY = 87°mWX = 180° - mXY = 180° - 87° = 93°Correct choice is C
Answer:
option C.93° is your answer
Step-by-step explanation:
<WVX+87°=180 linear pair
arc WX=180-87=93°
HELP I NEED HELP ASAP
HELP I NEED HELP ASAP
HELP I NEED HELP ASAP
Answer:
c
Step-by-step explanation:
AND DONT DELETE MY ANSWERS THEY KEEP ON GETTING DELETED IM JUST HELPIING
Question in the picture
Answer:
y= (C-Ax)/B hence:y=(6x+9)/5
gradient (m)= 6/5
y-intercept:9/5
triangulo ablicuangulo a=26cmA=32∘B=18∘
Answer:
torn tornado if then brbdu do disney
didbdiddbhjfjfbbfbjfjfnfjfjfnfbgjdndjfjfrhdufbufifnfjfid didn't turn didbdiddbhjfjfbbfbjfjfnfjfjfnfbgjdndjfjfrhdufbufifnfj brindle dog dbdudbybdifbfj and get a phone number for you to come over and get me a new one for you to come over and get me a new to be a big boy and get a phone number for you to comethen bring hand Disney
Answer:
Step-by-step explanation:
if she were to average that same commission each week how much would she make in commissions in a year treating a year as having exactly 52 weeks
Kelly got a part time job and had to pay $150 worth of taxes, which was 10% of her monthly payment. How much money did she make before paying taxes?
Answer:
$1,500
Step-by-step explanation:
To find how much money she made before paying taxes, divide 150 by 0.1:
150/0.1
= 1500
So, Kelly made $1,500 before taxes
Answer:
$1,500
Step-by-step explanation:
Turn 10% into a decimal: To turn a percent into a decimal, you move the decimal twice to the left.
10%=.1
Divide: $150 divided by .1=1500
$1,500
Hope this helped!! :)
Stay safe and have a wonderful day/night!!!!!
Good luck!
Brainliest?!?!
Estimate the volume of a soccer ball that has a diameter of 8 inches
Answer:
269 in³
Step-by-step explanation:
The formula for the volume of a sphere is V = (4/3)πr³.
Here the ball (sphere) diameter is 8 in, meaning that the radius is 4 in.
Thus, the volume of this ball is:
V = (4/3)π(4 in)³
If an "estimate" is good enough, use 3.14 for π:
V = (4/3)(3.14)(4 in)³ = 269 in³
The manager of a store increases the price of a popular product by 5%. Let t be the original price of the product. The new price is t+0.05t.
In a class of 30 students, 9 have a brother and 17 have a sister. There are 7 students who have a brother and a sister. What is the probability that a student chosen randomly from the class has a brother and a sister?
Given are..
30
9
17
7
Operation to use..
Addition and Subtraction
Solution:
9 + 17 = 26
30 - 26 = 4
4 + 7 = 11
so in that case there are 11 student chosen randomly from the class has a brother and a sister.
The probability that a student chosen randomly from the class has a brother and a sister would be; 11/30
What is the probability?Probability refers to a possibility that deals with the occurrence of random events.
The probability of all the events occurring need to be 1.
The formula of probability is defined as the ratio of a number of favorable outcomes to the total number of outcomes.
We are given that class of 30 students, 9 have a brother and 17 have a sister. There are 7 students who have a brother and a sister.
Therefore, we have 9 + 17 = 26
Total students
30 - 26 = 4
4 + 7 = 11
As we can see that there are 11 student chosen randomly from the class has a brother and a sister;
Probabilty = 11/30
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i need help this is dude tomorrow
What is the value of (-7)
Answer:
i dont know maybe ha got you its
Step-by-step explanation:
i know maybe go find on the internet not brainly though
ill mark brainlist plss help
Answer:
2.32
Step-by-step explanation:
multiply 57.84 x 4 = 231.36
divide 231.36 / 100 = 2.31 but if you estimate then its 2.32
What information can you get from a bar graph?
the mean
the frequency of each category
the number of data points
the range
Answer:
the frequency of each category
Step-by-step explanation:
the frequency of each category