1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Effectus [21]
3 years ago
11

find the percent of change from June to September in the time to run a mile (the June time is 7:45 and the September time is 5:5

1)
Mathematics
1 answer:
Leviafan [203]3 years ago
7 0

Answer:

74% change

Step-by-step explanation:

Percentage is the fraction between two values usually the obtained value against the total obtainable value and multiply by 100.

% change = (value in September / value in july) * 100

% change = (5.51 / 7.45) * 100

% change = 0.7395 * 100

% change = 74%

You might be interested in
Use Newton's method to estimate the requested solution of the equation. Start with given value of X0 and then give x2 as the est
levacccp [35]

Answer:

<h2>-0.3913 </h2>

Step-by-step explanation:

Given the initial value of X0 = -1, we can determine the solution of the equation x³ + 5x +2 = 0 using the Newton's method. According to newton's approximation formula;

y = f(x_0) + f'(x_0)(x-x_0)

x_n = x_n_-_1  - \frac{f(x_n_-_1 )}{f'(x_n_-_1 )}

If x_0 = 1\\

We will iterate using the formula;

x_1 = x_0  - \frac{f(x_0 )}{f'(x_0 )}

Given f(x) = x³ + 5x +2

f(x0) = f(-1) = (-1)³ + 5(-1) +2

f(-1) = -1 -5 +2

f(-1) = -4

f'(x) = 3x²+5

f'(-1) = 3(-1)²+5

f'(-1) = 8

x_1 = -1+4/8\\x_1 = -1+0.5\\x_1 = -0.5\\\\x_2 = x_1 - \frac{f(x_1)}{f'(x_1)}\\x_2 = -0.5 - \frac{f(-0.5)}{f'(-0.5)}

f(-0.5) = (-0.5)³ + 5(-0.5) +2

f(-0.5) = -0.125-2.5+2

f(-0.5) = -0.625

f'(-0.5) = 3(-0.5)²+5

f'(-0.5) = 3(0.25)+5

f'(-0.5) = 0.75+5

f'(-0.5) = 5.75

x_2 = -0.5 - \frac{(-0.625)}{5.75}\\x_2 = -0.5 + \frac{(0.625)}{5.75}\\x_2 = -0.5 + 0.1086957\\x_2 = -0.3913

The estimated solution is -0.3913 (to 4dp)

6 0
2 years ago
A car salesperson’s monthly salary is calculated by a base salary of $1600 per month plus $500 for each car sold. Graph the line
katrin2010 [14]

Answer: Ok so when he starts with one month he has $1600 each month and add $500x for example for the second month add another $1600 and $500x and so on the x stands for however many cars he sold that day

6 0
2 years ago
Please help ASAP!
Misha Larkins [42]
The probability of pulling a boys name first is 8/13. Then the probably of pulling a girls second is 2/5.
6 0
3 years ago
What is the equation of this line?
astraxan [27]
Y=3/4x-3 because none of the others make sense
6 0
2 years ago
Read 2 more answers
Which is the highest 96 fl oz or 8 pt
VMariaS [17]
Didn't I just answer this?? Anyways 96=6 Pints. This means it's less than 8 Pints. Hope this helps! :)
7 0
3 years ago
Read 2 more answers
Other questions:
  • Obtain all the zeros of the polynomial f[x]=x^4-3x^2-x^2+9x-6 if two of its zeros are-√3 and√3
    13·1 answer
  • An industrial factory make 2 ¾ yards of chain every minute. The cost of each yard of chain is $4.56. What is the total cost for
    8·2 answers
  • Multiply and simplify the following complex numbers:<br> (3 – 4i) · (–3+ 2i)
    9·1 answer
  • Verdadero o falso a) al reducir a comun denominador las fracciones se sustituyen por otras equivalentes
    11·1 answer
  • HELPP
    9·2 answers
  • Please tell fast plzzzzzzz​
    13·1 answer
  • Given square WXYZ. If ZY = 20, find WV. Write your response in the form WV=_____.
    7·1 answer
  • Please help a girl out I'm so confused
    12·2 answers
  • I need an answer please
    5·2 answers
  • Solve the system<br> y=x2 +4x + 3<br> y= 4x + 12<br> Enter your answers in the boxes.
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!