It appears to be 34 because it is not a multiple of 4
34
-34
Since 1000 is a multiple of 40... the next lowest multiple is 960. Therefore you simply subtract 40 !
48
It appears to be 34 because it is not a multiple of 4
Both of them are a multiple of 1
Least Common Multiple (LCM) for 34 40 is 680.
The Least Common Multiple (LCM) for 40 19 is 760.
544 = 24 + 25 + ... + 40 424 = 19 + 20 + ... + 34
34
85
The Least Common Multiple (LCM) for 19 40 37 11 is 309,320.
0.4 X = 34X = 34/0.40.68 X = 0.68 (34/0.4) = 57.8===============================Better way:40/34 = 68/X40X = (34 x 68)X = (34 x 68) / 40 = 57.8
34
85
To calculate the number of neutrons in an atom of potassium-40, subtract the atomic number (which is 19 for potassium) from the mass number (which is 40 for potassium-40). So, 40 (mass number) - 19 (atomic number) = 21 neutrons in potassium-40.