9 out of the 15 runners completed the time trial between 52.0 and 53.9 seconds so 9/15 is the percentage you are trying to find. If you divide 9 by 15 and then multiply the decimal by 100, you will have your percentage.
The answer is 60% because there are 9 people who got in between 52.0 and 53.9 seconds and 15 people total in that chart. We can turn this to a fraction 9/15. When we divide 9 and 15 we get .6 and we multiply that by 100 (percents are out of 100) and we get 60%
The frequency of chirping varies according to temperature. To get a rough estimate of the temperature in degrees fahrenheit, count the number of chirps in 15 seconds and then add 37. The number you get will be an approximation of the outside temperature.
∴ The greatest number that divides 210, 252 and 294 is 42.
Step-by-step explanation:
We have to find the LCM of the given rows 12, 15 and 40. (Taking Highest Powers). Therefore, least number of saplings that can be arranged in given rows are 120.