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How can you convert 21 over 40 into a mixed number?
21/40 is less than 1 and so it can't be expressed as a mixed number
What is the prime number of 21 and 40?
They are: 3*7 = 21 and 2*2*2*5 = 40
What number multiplied by 42 gives you 40?
20/21 times 42 = 40
What least number can both go into 21 and 40?
One.
Is 0.4 a whole number?
No. 0.4 is a decimal.
What is dodging in maths?
21-50
What number goes into 21 and 40?
The number is 1.
Explain how you would calculate the number of neutrons in potassium -40?
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.
What is the prime number of 21 and 40?
They are: 3*7 = 21 and 2*2*2*5 = 40
How can you convert 21 over 40 into a mixed number?
21/40 is less than 1 and so it can't be expressed as a mixed number
How many neutrons in potassium 41?
the answer is 21. because you do 40-19
8.4 is 40 percent of what number?
21
What is the dodging number?
Dodging numbers may be missing numbers in a sequence. For example, the underscore in the following sequence represents such a number: 2, 4, _ , 8, 10.
What number is 40 percent of 52.5?
40% of 52.5 40/100=0.4 0.4x52.5=21
What number does 40 percent of 21 equal?
8.4
How you calculate the number of neutrons in potassium-40?
By subtracting 19 (atomic number of Potassium) from 40. You should come out with 21, which is the number of neutrons in potassium-40
What number multiplied by 42 gives you 40?
20/21 times 42 = 40
