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
Ulleksa [173]
3 years ago
10

How do I write 56 1/4% as a fraction in simplest form

Mathematics
2 answers:
Scilla [17]3 years ago
4 0
The answer is 9/16 because 56 1/4% = 56.25% and any percent is out of 100 so into a fraction it's 56.25/100. Because it's now a decimal over a fraction you divide 56.25 by 100 to get .5625 but every number is over 1 so now you have .5625/1 now that you have this fraction you have to make the decimal whole so you would multiply .5625/1 by 10000/10000 and get 5625/10000. You simplify 5625/10000 and get 9/16.
meriva3 years ago
3 0
56 1/4% = 9/16
Hope this helps!
You might be interested in
A phone manufacturer wants to compete in the touch screen phone market. Management understands that the leading product has a le
frutty [35]

Answer:

a) Null hypothesis:\mu_{1} - \mu_{2} \leq 120

Alternative hypothesis:\mu_{1} - \mu_{2}>120

b) Calculate the statistic

We can replace in formula (1) the info given like this:

t=\frac{(485-340)-120}{\sqrt{\frac{55^2}{100}+\frac{30^2}{120}}}}=4.0689  

c) Critical value

The first step is calculate the degrees of freedom, on this case:

df=n_{1}+n_{2}-2=100+120-2=218

The significance level on this case is 0.05 or 5% so we need to find a quantile on the t distribution with 218 degrees of freedom that accumulates 0.95 of the area on the left and 0.05 of the area on the right tail and this value can be founded with the following excel code: "=T.INV(1-0.05,218)" and we got:

t_{crit}= 1.652

Conclusion

Since our calculated value is higher than the critical value we have enough evidence to reject the null hypothesis at 5% of significance and then we can conclude that the new product has a battery life more than two hours (120 minutes) longer than the leading product

Step-by-step explanation:

Data given and notation

\bar X_{1}= 8*60 +5 =485 represent the mean for the new sample

\bar X_{2}=5*60+40=340 represent the mean for the old sample

s_{1}=55 represent the sample standard deviation for the new sample

s_{2}=30 represent the sample standard deviation for the old sample

n_{1}=100 sample size selected for the new sample

n_{2}=120 sample size selected for the old sample

\alpha=0.05 represent the significance level for the hypothesis test.

t would represent the statistic (variable of interest)

p_v represent the p value for the test (variable of interest)

a) State the null and alternative hypotheses.

We need to conduct a hypothesis in order to check if the new product has a battery life more than two hours longer than the leading product., the system of hypothesis would be:

Null hypothesis:\mu_{1} - \mu_{2} \leq 120

Alternative hypothesis:\mu_{1} - \mu_{2}>120

If we analyze the size for the samples both are higher than 30 but we don't know the population deviations so for this case is better apply a t test to compare means, and the statistic is given by:

t=\frac{(\bar X_{1}-\bar X_{2})- \Delta}{\sqrt{\frac{s^2_{1}}{n_{1}}+\frac{s^2_{2}}{n_{2}}}} (1)

t-test: "Is used to compare group means. Is one of the most common tests and is used to determine whether the means of two groups are equal to each other".

b) Calculate the statistic

We can replace in formula (1) the info given like this:

t=\frac{(485-340)-120}{\sqrt{\frac{55^2}{100}+\frac{30^2}{120}}}}=4.0689  

c) Critical value

The first step is calculate the degrees of freedom, on this case:

df=n_{1}+n_{2}-2=100+120-2=218

The significance level on this case is 0.05 or 5% so we need to find a quantile on the t distribution with 218 degrees of freedom that accumulates 0.95 of the area on the left and 0.05 of the area on the right tail and this value can be founded with the following excel code: "=T.INV(1-0.05,218)" and we got:

t_{crit}= 1.652

Conclusion

Since our calculated value is higher than the critical value we have enough evidence to reject the null hypothesis at 5% of significance and then we can conclude that the new product has a battery life more than two hours (120 minutes) longer than the leading product

7 0
3 years ago
Please help with my math assignment
Umnica [9.8K]

Answer:

you mean prostitution

Step-by-step explanation:

3 0
3 years ago
What is the volume of a cube with edge 5cm
Varvara68 [4.7K]

125cm {}^{3}
5 0
4 years ago
In a word processing document or on a separate piece of paper, use the guide to construct a two column proof proving that lines
lorasvet [3.4K]

Hello

just a second

people reading this please complete because you will help me a lot.

I am an Indian girl my name is Lamer and am 13 years old.

I Just got this new device after working at a farm for 2 years.

I used to use brainly at my friend device she had money to buy brainly plus.

I cant please help me get points so I can get good marks and my dad let me complete my education instead of getting married.  

8 0
3 years ago
Another real estate agent sold a house for $315,000 last week. If her commission is 1.25% of the selling price of the home, find
Rus_ich [418]

Answer:

$3937.50

Step-by-step explanation:

315,000 * 1.25% = 315,000 * 1.25/100 = 3,150*1.25 = 3937.5

7 0
3 years ago
Other questions:
  • Hey can you please help me posted picture of question
    8·1 answer
  • The volume of the triangular prism is 54 cubic units.
    8·2 answers
  • fill in the missing number in this newspaper report: houses cost 150.000 a year ago.they now cost is ?. this is a 25% increase w
    10·2 answers
  • A particular plant root grows 3.5 inches per month. How many centimeters is the plant root growing per month? (1 inch = 2.54 cen
    11·2 answers
  • Which values are solutions to the inequality below?check all that apply x^2 >49 A. 6 B.20 C.-7 D.-5 E.-16 F. 7
    6·1 answer
  • Which transformation gives the same result as a rotation of 180° around the origin
    14·2 answers
  • -11x + 7y = 5 and 5x – 2y = – 7<br> PLEASE HURRY
    7·1 answer
  • Need help don't know this
    12·2 answers
  • How is subtracting integers related to the addition of integers?
    11·1 answer
  • What is the slope of the line in this graph?
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!