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
expeople1 [14]
3 years ago
10

Cynthia completed 2 thirds of the items on her to do list in the morning and finished 1 eighth of the item during her lunch brea

k. What fraction on her to do list is finished by the end of her lunch break?
Mathematics
1 answer:
yKpoI14uk [10]3 years ago
8 0

Answer:

19/24 is completed.

Step-by-step explanation:

2/3 + 1/8 =

16/24 + 3/24 = 19/24

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
X+y=2 8x+3y=-19 substitution
padilas [110]

Answer:

{x,y}={−5,−7}

Explain:

// Solve equation [2] for the variable  y [2]    3y = 7x + 14 [2]    y = 7x/3 + 14/3 // Plug this in for variable  y  in equation [1] [1]    8x - 3•(7x/3+14/3) = -19 [1]    x = -5 // Solve equation [1] for the variable  x [1]    x = - 5 // By now we know this much : x = -5 y = 7x/3+14/3 // Use the  x  value to solve for  y y = (7/3)(-5)+14/3 = -7 Solution : {x,y} = {-5,-7}

Hoped I helped

4 0
3 years ago
Read 2 more answers
Help me please help me
ziro4ka [17]
Yes it’s a function
7 0
3 years ago
Read 2 more answers
Plz help ive been stuck on this question for so long
luda_lava [24]

Multiply each exponent inside the parentheses by the exponent on the outside:

8^(-5 x -4) / 2^(-2 x -4)

8^20 / 2^8

The answer is C

4 0
3 years ago
Is there anything bigger than a ton
egoroff_w [7]

Answer:

No

Step-by-step explanation:

Well like how the ounce is the smallest a ton is the biggest.For example, it makes more sense to describe the weight of a human being in pounds rather than tons.

8 0
3 years ago
Other questions:
  • What is the slope of the line passing through the points (4,-2) and (-5,4)
    8·1 answer
  • Solve for 2:<br> 8x - 41°<br> 4x + 35°
    13·1 answer
  • What is 3456 divide by 5
    6·2 answers
  • 18x-16y=-312 <br> 78x-16y=408
    7·1 answer
  • Someone please help me
    6·1 answer
  • Choose the best decimal to represent 53/7​
    5·2 answers
  • Identifying Relationships between Lines
    5·2 answers
  • Help plssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssss
    5·1 answer
  • Your teacher is giving you a test tomorrow with 2- and 4-point questions for a total of 100 points. The number of 4 points quest
    12·2 answers
  • What is 200 percent of (0.020(5/4) + 3 ((1/5) – (1/4)))
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!