LCM(15, 28) = 420
1,2,4,7,14,28
14 and 21, and 21 and 28 are the number pairs between 15 and 30 that have 7 as their greatest common factor.
It was 16 for a very long time, but now you have to be 15.
Factors are those numbers which can be evenly divided into a number. The factors of 21 would be 1, 3, 7, 21 The factors of 28 would be 1, 2, 4, 7, 14, 28 The factors of 15 would be 1, 3, 5, 15
No you have to be 15-28 to try out... Srry...
No. Only 3 and 5 go into 15, but neither of those go into 28.
Unfortunately you can't. 15/28 is the simplest it will go.
To find 15 percent of 28, you first convert 15 percent to a decimal by dividing by 100, which equals 0.15. Then, you multiply 0.15 by 28 to get the answer. Therefore, 15 percent of 28 is 4.2.
To find the missing number in the sequence 10, 15, 28, we can look for a pattern in the differences between the numbers. The difference between 10 and 15 is 5, and the difference between 15 and 28 is 13. If we assume a pattern in the differences, the missing number could be 21, which fits as the average of 15 and 28. Thus, the sequence could be 10, 15, 21, 28.
number of neutrons = mass number - number of protons = 28 - 13 = 15 neutrons
28 is the answer. if 12 is 15% of a number ,the number is 80. 35% of 80 is 28
38/15 = 28/15
1.8667
It is: 1 and 13/15
28
The number 20 is.
420 ÷ 15 = 28