Got Homework?
Connect with other students for help. It's a free community.
Here's the question you clicked on:
 0 viewing
babybats
Group Title
Suppose that the chain could go all the way around the planet. Then the chain's length would be equal to the circumference of the earth at the equator (about 24,000 miles). Assuming that the average adult arm span is 6 feet, how many people would it take to make this human chain?
A. 21,220,000
B. 20,120,100
C. 22,200,000
D. 21,120,000
 2 years ago
 2 years ago
babybats Group Title
Suppose that the chain could go all the way around the planet. Then the chain's length would be equal to the circumference of the earth at the equator (about 24,000 miles). Assuming that the average adult arm span is 6 feet, how many people would it take to make this human chain? A. 21,220,000 B. 20,120,100 C. 22,200,000 D. 21,120,000
 2 years ago
 2 years ago

This Question is Closed

Jerry)123gnzcraft Group TitleBest ResponseYou've already chosen the best response.0
Here  how many feet are in a mile
 2 years ago

Jerry)123gnzcraft Group TitleBest ResponseYou've already chosen the best response.0
Here  how many feet are in a mile? (5280) Multiply that many feet times the number of miles around the earth (24000 x 5280 = 126,720,000 ft) *divide* by the 6 ft arm spans   126,720,000 ft / 6 ft = 21,120,000 people If it takes 20 seconds for the signal to reach the 60th person, that means it takes *1* second for every *3* people   divide the number of people by *3* to get the number of seconds 21,120,000 / 3 = 7,040,000 seconds Now... how many seconds are in *one* hour ? (Hint : 3,600) Divide the total number os seconds by the number of seconds in an hour 7,040,000 / 3600 = 1955 1/2 hours
 2 years ago

babybats Group TitleBest ResponseYou've already chosen the best response.0
oh...thats easier then expected..thanks
 2 years ago
See more questions >>>
Your question is ready. Sign up for free to start getting answers.
spraguer
(Moderator)
5
→ View Detailed Profile
is replying to Can someone tell me what button the professor is hitting...
23
 Teamwork 19 Teammate
 Problem Solving 19 Hero
 Engagement 19 Mad Hatter
 You have blocked this person.
 ✔ You're a fan Checking fan status...
Thanks for being so helpful in mathematics. If you are getting quality help, make sure you spread the word about OpenStudy.