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
Romashka [77]
3 years ago
5

A cyclist travels 20 km from home to the park.

Mathematics
1 answer:
yulyashka [42]3 years ago
3 0

Answer:

40 kph

Step-by-step explanation:

I'm not to familiar with km but if it took you 30 minutes to travel 20km you would have to be going 40kph. It's basic math too. If you went 20 kph for 20km it would take you an hour to get there, but since they made it in 30 minutes, you just double the speed.

You might be interested in
(1 point) A recent report for a regional airline reported that the mean number of hours of flying time for its pilots is 56 hour
Ray Of Light [21]

Answer:

(53.812 ; 58.188) ; 156

Step-by-step explanation:

Given that :

Sample size (n) = 51

Mean (m) = 56

Standard deviation (σ) = 9.5

α = 90%

Using the relation :

Confidence interval = mean ± Error

Error = Zcritical * (standard deviation / sqrt (n))

Zcritical at 90% = 1.645

Error = 1.645 * (9.5 / sqrt(51))

Error = 1.645 * 1.3302660

Error = 2.1882877

Hence,

Confidence interval :

Lower boundary = 56 - 2.1882877 = 53.8117123

Upper boundary = 56 + 2.1882877 = 58.1882877

Confidence interval = (53.812 ; 58.188)

2.)

Margin of Error (ME) = 1.25

α = 90%

Sample size = ((Zcritical * σ) / ME)^2

Zcritical at 90% = 1.645

Sample size = ((1.645 * 9.5) / 1.25)^2

Sample size = (15.6275 / 1.25)^2

Sample size = 12.502^2 = 156.3000

Sample size = 156

3 0
2 years ago
Pls Help asap
Alla [95]

Answer:

1. Q1=7 Q3=12 IQR=5

2. Q1=8 Q3=33 IQR=25

3. Q1=4.5 Q3=10 IQR=5.5

Step-by-step explanation:

hope this helps have a good day or night

3 0
2 years ago
Order the following numbers from least to greatest. √11, -0.4, (-4/3), 0.8, √2
agasfer [191]

Answer:

(-4/3), 0.4, 0.8, √2, √11

Step-by-step explanation:

√11=3.316624790355399849114932736670686683927088545589353597058

0.4

(-4/3) = -1.33333333333333333333333333333333333333333333333333333333

0.8

√2=1.414213562373095048801688724209698078569671875376948073176


Thus :

(-4/3)

0.4

0.8

√2

√11

8 0
3 years ago
Subtract.
notka56 [123]
-2 4/7 is your answer
6 0
3 years ago
Read 2 more answers
What’s 1+1 <br><br> 100 Points
Andrei [34K]
OH THANKS A LOT AND ITS 11
5 0
2 years ago
Read 2 more answers
Other questions:
  • |60| ___ |-60|<br><br> =<br> &lt;<br> &gt;
    7·2 answers
  • Samuel can type nearly 40 words per minute how many hours would take to type 2.5x10.5 words
    14·1 answer
  • Which value satisfies the inequality 5x + 7 ≤ 8x - 3 + 2x?
    5·1 answer
  • Please help I will mark brainly!!!
    7·1 answer
  • Find x no need for explanation I just need answer thanks
    8·1 answer
  • 12 is 40% of what number? (Hint: Divide) *<br> O<br> 24<br> 30<br> 36<br> O 48
    9·2 answers
  • Angle E and angle H are supplementary. If angle E has a measure of 156 degrees, find the measure of angle H
    5·1 answer
  • Solve for y:<br> 6=2(y+2)
    9·2 answers
  • HURRY WILL MARK BRAINLIEST!!!!!!!!!!!!!!!!!!!!!!
    13·1 answer
  • Help me please and thank you
    8·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!