Answer:
42.194988
Step-by-step explanation:
There are 42.194988 km in 1 marathon
Answer:
8 billion > 8,000,000,000
977 thousand > 977,000
13> 13
8,000,977,013
Step-by-step explanation:
Hello!
Since we are given that the speed of sound in the air travels about 343 meters per second, we can multiply 343 meters per second by 5, and then we convert the meters to kilometers.
343 · 5 = 1715 meters per 5 seconds.
1000 meters are equal to 1 kilometer. So, we can divide 1715 by 1000 to convert meters to kilometers.
1715 / 1000 = 1.715
Therefore, the speed of sound in air is about 1.715 kilometers per 5 seconds.
Answer:
the answer is 2304
Step-by-step explanation:
8×8=64
64×36=2304
Answer:
7
Step-by-step explanation:
Working backwards:
19 + 9 = 28
28/ 4 = 7
Checking work:
7 x 4 = 28
28 - 9 = 19