A decimal number is simply a way of representing a number in such a way that the place value of each digit is ten times that of the digit to its right. A decimal representation does not require a decimal point. So the required decimal representation is 420, exactly as in the question.
0,42
420% = 4.2
It is 0.35
4.20
420 x 0.3 ------ 1260 then move the decimal one place to the left because of the decimal in 0.3 126.0
4.2
4.2
It is 0.35
It is 0.65
Add a decimal point in front of the 85.85 x 420 = 357So the answer is 357
It is: 165/420 times 100 = 39.29% rounded to two decimal places
Expressed as a surd in its simplest form, sqrt(420) = 2 sqrt(105). Expressed as a decimal, rounded to two decimal places, this is equal to 20.49.
It is: 165/420 times 100 = 39.29% rounded to two decimal places