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
a_sh-v [17]
2 years ago
8

What percentage of the mile times range from 7.25 to 9.375?

Mathematics
1 answer:
Ganezh [65]2 years ago
3 0

Answer:

0.6796875

Step-by-step explanation:

1. We assume, that the number 9.375 is 100% - because it's the output value of the task.

2. We assume, that x is the value we are looking for.

3. If 9.375 is 100%, so we can write it down as 9.375=100%.

4. We know, that x is 7.25% of the output value, so we can write it down as x=7.25%.

5. Now we have two simple equations:

1) 9.375=100%

2) x=7.25%

where the sides of both of them have the same units, and both right sides have the same units, so we can do something like that:

9.375/x=100%/7.25%

6. Now we just have to solve the simple equation, and we will get the solution we are looking for.

7. Solution for what is 7.25% of 9.375

9.375/x=100/7.25

(9.375/x)*x=(100/7.25)*x       - we multiply both sides of the equation by x

9.375=13.793103448276*x       - we divide both sides of the equation by (13.793103448276) to get x

9.375/13.793103448276=x

0.6796875=x

x=0.6796875

now we have:

7.25% of 9.375=0.6796875

You might be interested in
For Jack's birthday, his mom is taking him and 12 friends to the zoo. If she pays $11 for each ticket using her credit card, wha
Gemiola [76]
Jack's mom is purchasing thirteen tickets at a price of $11 each. This equals a total of $143 in total spent. If Jack's mom has a credit card limit of $500, then after purchasing $143 with the card, her available amount to purchase additional things is $357. This impact on her available credit is due to credit cards working on an available balance system. When Jack's mom first received her credit card, a set balance or total amount she could purchase with the card was set. In this example, her total amount she could purchase with the card was $500. After her purchase of the tickets for $143 was completed, she subtracted that amount from her total available of $500 and that is why her available amount to purchase is now $357.
4 0
3 years ago
Read 2 more answers
They’ve had to write five pages for a book report. How many hours would it take him to write it if he wrote 1/6 of the page each
Katyanochek1 [597]
1/6 page = 1 hour
1page= 6 hours
5 pages would be 30 hours
6 0
3 years ago
Read 2 more answers
A rectangular field measures 400m by 900m, what is the perimeter of the field:
Alina [70]

Answer:

a) 1790 b) 1.79

Step-by-step explanation:

a) you just add to get the perimiter 2(900) + 2(400) to get 1790

b) 1000 meters makes a kilometer so we divide by 1000 and get 1.79 for the kilometers

6 0
3 years ago
Read 2 more answers
which of the following terms best describes the graph of the exponential function given below f(x)=4*5^x
N76 [4]
If i did it right the anwser is 20
4 0
3 years ago
Researchers studying the effect of diet on growth would like to know if a vegetarian diet affects the height of a child. Twelve
Eva8 [605]

Answer:

a)  t_{0.035},11=\pm2.201

b)  t=-2.963

c)  Reject\ H_0\ when\ \alpha=0.05

d)   t

   -2.963

Step-by-step explanation:

From the question we are told that:

Sample size n=12

Mean \=x=42.5

Standard deviation \sigma=3.8

Population mean \mu=45.75

Significance \alpha=0.05

 

Generally the hypothesis given by

H_0;\mu=45.75\\H_1:\neq =45.75

Generally the equation for test statistics is mathematically given by

t=\frac{\=x-\mu}{\sigma/\sqrt{n} }

t=\frac{42.5-45.75}{3.8/\sqrt{12} }

t=-2.963

Generally the Critical value is mathematically given by

t_{\alpha/2},d_t

\alpha=0.05 \\\alpha/2=0.025\\d_t=n-1=11

t_{0.035},11

From table

t_{0.035},11=\pm2.201

Therefore

t

-2.963

Reject\ H_0\ when\ \alpha=0.05

4 0
3 years ago
Other questions:
  • a pizza is 16 inches in diameter. each square inch of pizza has 6 calories. if each slice contains about 144 calories, how many
    6·1 answer
  • Sam ate a total of 13 hotdogs. He ate 2 hotdogs every 4 minutes. How many minutes did it take for Sam to finish all 13 hotdogs?
    13·1 answer
  • Which represents a quadratic function?? Help
    14·2 answers
  • Whats the volume of the cylinder? Round your answer to the nearest hundred the top is B the left side of the cylinder is 13cm th
    14·1 answer
  • What is the y-intercept of the line?<br> 110<br> A<br> 2<br> B<br> 3<br> 000<br> -7<br> -6<br> D
    11·1 answer
  • Let A = {\bullet ,\square, \bigotimes} and B = {\square,\ominus, \bullet}.
    5·1 answer
  • ?? anyone know thank you
    11·2 answers
  • The coordinate grid represents a map of Yvon's town.
    7·2 answers
  • Just testing the app​
    5·1 answer
  • In calm water, the motorboat of Jana is moving at the speed of 16.5km/h. On a river, because of the current, the boat moves fast
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!