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
hjlf
3 years ago
11

Write each percent as a fraction in simplest form? 1. 75%

Mathematics
1 answer:
dem82 [27]3 years ago
5 0

Answer:

3/4

Step-by-step explanation:

As a decimal, 75% is 0.75, which is 3/4

You might be interested in
A newspaper poll asked respondents if they trusted "eco friendly" labels on cleaning products. Out of 1000 adults surveyed, 498
Paul [167]

Answer:

So the p value obtained was a very high value and using the significance level assumed \alpha=0.05 we have p_v>\alpha so we can conclude that we have enough evidence to FAIL to reject the null hypothesis, and we can said that at 5% of significance the proportion of respondents that trust these labels is not significanlty less than 0.5 or 50%.  

Step-by-step explanation:

1) Data given and notation

n=1000 represent the random sample taken

X=498 represent the adults that trust these labels

\hat p=\frac{498}{1000}=0.498 estimated proportion of respondents that trust these labels

p_o=0.5 is the value that we want to test

\alpha represent the significance level

z would represent the statistic (variable of interest)

p_v represent the p value (variable of interest)  

2) Concepts and formulas to use  

We need to conduct a hypothesis in order to test the claim that the proportion of respondents that trust these labels is at least 50%:  

Null hypothesis:p\geq 0.5  

Alternative hypothesis:p < 0.5  

When we conduct a proportion test we need to use the z statisitc, and the is given by:  

z=\frac{\hat p -p_o}{\sqrt{\frac{p_o (1-p_o)}{n}}} (1)  

The One-Sample Proportion Test is used to assess whether a population proportion \hat p is significantly different from a hypothesized value p_o.

3) Calculate the statistic  

Since we have all the info requires we can replace in formula (1) like this:  

z=\frac{0.498 -0.5}{\sqrt{\frac{0.5(1-0.5)}{1000}}}=-0.126  

4) Statistical decision  

It's important to refresh the p value method or p value approach . "This method is about determining "likely" or "unlikely" by determining the probability assuming the null hypothesis were true of observing a more extreme test statistic in the direction of the alternative hypothesis than the one observed". Or in other words is just a method to have an statistical decision to fail to reject or reject the null hypothesis.  

The significance level is not provided but we can assume it as \alpha=0.05. The next step would be calculate the p value for this test.  

Since is a left tailed test the p value would be:  

p_v =P(Z  

So the p value obtained was a very high value and using the significance level assumed \alpha=0.05 we have p_v>\alpha so we can conclude that we have enough evidence to FAIL to reject the null hypothesis, and we can said that at 5% of significance the proportion of respondents that trust these labels is not significanlty less than 0.5 or 50%.  

7 0
3 years ago
Ain.<br> 1.5 ft.<br> 0.5 it.<br><br> What is the surface area of the figure in square inches help
Aleonysh [2.5K]

<u>Answer:</u>

  • 17.5 ft.²

<u>Step-by-step explanation:</u>

  • Surface area: 2(4 x 0.5) + 2(4 x 1.5) + 2(0.5 x 1.5)
  • => 2(2) + 2(6) + 2(0.75)
  • => 4 + 12 + 1.5
  • => 17.5 ft.²

<u>Conclusion: </u>

Therefore, the surface area is 17.5 ft.².

Hoped this helped.

GeniusUser

3 0
2 years ago
Read 2 more answers
Factor out 1/4 out of 1/4x+11/4
cluponka [151]

\frac{1}{4} x+\frac{11}{4}

we can rewrite it as

\frac{1}{4}* x+\frac{1}{4}*11

we can see that 1/4 is in multiple in both terms

so, we can factor it out

so, we get

\frac{1}{4}( x+11)..............Answer

5 0
3 years ago
The total cost of attending a state university is $19,700 for the first year. • A student's grandparents will pay half of this c
Temka [501]

Answer:

The student will have to save $404.2 minimum monthly

Step-by-step explanation:

Given that the total cost for the first year= $19,700

The grandparents paid half the amount = 1/2(19700)= $9850

The remaining balance to be paid is

19,700 - 9850=$9850

If an athlete paid $5000

The the remaining balance to be paid = 9850-5000=$4850

For the student to clear this amount in 12 months he must save

monthly 4850/12= $404.166

Hence the minimum amount to be saved per month is $404.2

4 0
3 years ago
Read 2 more answers
How do I solve 4/7 of 28
Lelu [443]
I got 16, you may review the image I've attached to see how I got my answer.

7 0
3 years ago
Read 2 more answers
Other questions:
  • Suppose the radius of a circle is 8. What is its area?
    15·1 answer
  • *I thought of a number, added 18, then multiplied the result by 8. I got 16. What was my number?
    9·1 answer
  • Please answer this correctly
    7·2 answers
  • The scale on a map is 1 cm = 30 km. The map distance between two towns is 3.5 cm. What is the actual distance between the two to
    6·1 answer
  • How did the function move from the f(x)=|x| to f(x)=|x+2|
    12·1 answer
  • Applying Math<br> 8. Solve the equation to<br> show how/= becomes<br> R= Show your work.
    8·1 answer
  • Helpp plzzz pt.3 yeahh​
    12·1 answer
  • NEED HELP ASAP! WILL MARK BRAINLIEST!!!
    7·1 answer
  • Classify the following triangle. Check all that apply
    6·1 answer
  • I need the answers to these problems for my test corrections.
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!