Peter went upstream in a canoe at an average speed of 12 miles per hour. He returned by the same route at an average speed of 18 miles per hour. What was Peter's average speed for the round trip, in miles per hour?
If n>1 and each of the three integers n, n+2, and n+4 is a prime number, then the set of three such numbers is called a "prime triple" there are how many different prime triples?
Suppose a friend tells you he has a body temp of 38. Your temp is 37. Do the particles that make up your body or friends body have a greater average kinetic energy
Answer:
no
Explanation: