64 km x 0.62137 = 39.76768 miles per hour
64.4 x 0.62137 = 40.016228 miles per hour
40.016228 - 39.76768 = 0.248548 miles per hour faster
1 mile =5280 feet
5280 * 0.248548 = 1312.33 feet per hour
3600 seconds per hour
1312.33 / 3600 = 0.37 feet per second faster
Answer:
the mean of 8 children = mean of 5 boys + mean of 3 girls / 2
10.5 + 9.5 / 2
20 / 2
= 10 kg
therefore mean of 8 children is 10 kg
It is a formula In ratio and proportion
Answer:
The overview of the specific issue is outlined in the following portion of the explanation.
Step-by-step explanation:
Give the percentage including its age of students taking Piano lessons while attending Ivy League schools would be:
= 2.1
So that Number of such students are:
= 
= 
No, but 25% of the students attending an Ivy League school were taking piano lessons whereas 25% of all students were taking piano lessons. The original comment above indicates that both occurrences are independent, and therefore no organization.