The speed while walking is 0.2 kilometers per minute
Step-by-step explanation:
The speed is calculated as distance per unit time.
Given
Distance = d = 5 km
Time by walking = t = 25 minutes
The speed is given by:
Putting the values
The speed while walking is 0.2 kilometers per minute
Keywords: Speed, distance
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Hi, you've asked an incomplete question. Attached is the full question.
Answer:
<u>1. c and b</u>
<u>2. No. The definitions have opposite results.</u>
Step-by-step explanation:
1. Two different ways Analia could define this quantity is:
- <em>SAT range divided by budget per student</em>
- <em>SAT range divided by teachers per student.</em>
2. Indeed, whatever the definition selected, they both have opposite results.
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Answer:
2
Step-by-step explanation:
Write the equation
Add the variables
Multiply 3 x 5
Subtract the parentheses
Subtract the numerator
Reduce the fraction with 3
Reduce the fraction again with 2
And there's your answer of 2!
The leading coefficient is positive and the highest power is 3 so the right side will go up and the left side will go down.
Answer: 271
Step-by-step explanation:
The formula we use to find the sample size is given by :-
, where is the two-tailed z-value for significance level of
p = prior estimation of the proportion
E = Margin of error.
If prior estimation of the proportion is unknown, then we take p= 0.5 , the formula becomes
Given : Margin of error : E= 0.05
Confidence level = 90%
Significance level
Using z-value table , Two-tailed z-value for significance level of
Then, the required sample size would be :
Simplify,
Hence, the required minimum sample size =271