Answer:
28 km per hour
Step-by-step explanation:
First determine the amount of time that the trip took
17:55 - 17:40 = :15 or 15 minutes
We need the time in hours
15 minutes * 1 hour/ 60 minutes = 15/60 hours = 1/4 hours
To determine speed, take distance and divide by time
7 km ÷( 1/4 hours)
Copy dot flip
7 * 4/1
28 km per hour
Sub the value of x into it
Answer:
I strongly believe that the question requires us to calculate the cost of one 500ml bottle of shower gel based on this special offer of buy 2 bottles get another for just $2.
The correct answer is $5.33
Step-by-step explanation:
From a buyer's point of view,a 500ml bottle of shower gel cost is the $7 multiplied by 2 bottles plus $2 multiplied by 1 bottle all divided by 3 bottles.
The rationale for the denominator is that the total number of bottles bought would then equal 3 bottles .
Cost per bottle =($7*2)+($2*1)/3=$16/3=$5.33
Instead of a bottle costing $7,under the special arrangement a bottle would simply cost $5.33
This is the correct answer is
Answer:
The speed of 65 mph is an outlier in the distribution of the player's serve speeds
Step-by-step explanation:
We are given the following information in the question:
Mean, μ = 100 mph
Standard Deviation, σ = 10 mph
Formula:
Outlier on basis of z-score:
- Any z-score greater than 3 or less than -3 is considered to be an outlier.
- This rule of thumb is based on the empirical rule.
Calculation of z-score:
Thus, the speed of 65 mph is an outlier in the distribution of the player's serve speeds as the corresponding z-score is less than -3.
