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
rewona [7]
3 years ago
8

Yana took a 15-hour flight to Korea he slept for 1/3 of the flight how many minutes did he sleep

Mathematics
1 answer:
Triss [41]3 years ago
6 0
One third of 15 is 5 because 15/3=5. There are 60 minutes in an hour and Yana slept for 5, so 5*60= 300. Yana slept for 300 minutes. 
You might be interested in
PLS HELP I HAVE ALOT TO ANSWER AND TY IF YOU DO!!
Assoli18 [71]

Answer:

B: supplementary because they add up to 180 degrees

4 0
2 years ago
Calculate the value of each expression.<br><br><br><br><br> −18/−3<br><br> omg please helpp
Jet001 [13]

Answer:

6

Step-by-step explanation:

7 0
3 years ago
Solve the simultaneous equations 8 x + 5 y = 28 4 x + 5 y = 16
Nostrana [21]

Answer:

x=3, y=0.8

Step-by-step explanation:

8x+5y=28

4x+5y=16

Subtract the second simultaneous equation from the first.

You are left with: 4x=12

12/4=3

x=3

Substitute this back into one of the equations.

8(3)+5y=28

8*3=24

28-24=4

4=5y

4/5=0.8

y=0.8

5 0
3 years ago
Read 2 more answers
The U.S. and many other countries have recently tightened airport security. A sociologist is interested in estimating the propor
melisa1 [442]

Answer:

0.0073 < 0.05, which means that we reject the null hypothesis and conclude that the true proportion of interest is higher than 0.7.

Step-by-step explanation:

Conduct a test to determine whether the true proportion of interest is higher than 0.7.

This means that the null hypothesis is: H_{0}: p = 0.7

And the alternate hypothesis is: H_{a}: p > 0.7

The test statistic is:

z = \frac{X - \mu}{\frac{\sigma}{\sqrt{n}}}

In which X is the sample mean, \mu is the value tested at the null hypothesis, \sigma is the standard deviation and n is the size of the sample.

0.7 is tested at the null hypothesis:

This means that \mu = 0.7, \sigma = \sqrt{0.7*0.3}

The sociologist found that 375 of the 500 travelers randomly selected and interviewed indicated that the airports were safe.

This means that n = 500, X = \frac{375}{500} = 0.75

Value of the z-statistic:

z = \frac{X - \mu}{\frac{\sigma}{\sqrt{n}}}

z = \frac{0.75 - 0.7}{\frac{\sqrt{0.7*0.3}}{\sqrt{350}}}

z = 2.44

P-value of the test:

Probability of z being larger than 2.44, that is, a proportion larger than 0.75.

This is, looking at the z-table, 1 subtracted by the pvalue of Z = 2.44. S

Z = 2.44 has a pvalue of 0.9927

1 - 0.9927 = 0.0073

0.0073 < 0.05, which means that we reject the null hypothesis and conclude that the true proportion of interest is higher than 0.7.

8 0
3 years ago
Please help me answer Q9 in the photo!
padilas [110]

See the attached picture for explanation and steps:


4 0
3 years ago
Other questions:
  • What adds to negative 1 and multiplies to 12
    12·1 answer
  • Solve:<br><br>1/5c =15<br><br>c=__<br>solve what c equals
    12·1 answer
  • Anybody know how to solve this?
    9·2 answers
  • Attachment below. Please Help!!
    6·1 answer
  • mando collects baseball cards he currently has 24 cards and buys 5 new cards a week how many cards will ma do have in 20 weeks
    7·2 answers
  • PLEASE HELP ME!!!!!!!!!!! BRAINLEIST ANSWER WILL BE GIVEN :)
    5·1 answer
  • Please solve ASAP i need this for a quiz bc last day to complete
    11·1 answer
  • ~~~15 POINTS~~~<br> Please help me with this question.
    6·1 answer
  • 35 points !!!<br> Math test due very soon
    5·1 answer
  • (I WILL GIVE BRAINLIEST) PLEASE HELP!!
    15·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!