The answer is 39/40 - so rounding to the nearest would yield the answer 3.
To the nearest whole number, 2
To the nearest whole number: Zero
To the nearest whole number: 3
That rounds down to 8.
I think it is 9!
Some people find it easier to add or subtract whole numbers but yes, you could round to the nearest half.
To estimate, you round the number to the nearest 10 and add, subtract, divide, or multiply. If the number is a decimal (ex. 12.132), you would round it to 12, and then round that to 10.
If you are rounding to the nearest whole number, the mixed number 6 7/8 (six and seven eighths) rounds up to 7.
Take the Atomic Mass and round it to the nearest whole number. Then subtract this number and the atomic number of that element.
4.1+8.7x=x+14.1 : subtract x from both sides. 4.1+7.7x=14.1 : subtract 4.1 from both sides. 7.7x=10 : divide by 7.7. x=10/7.7=1.2987... : round to the nearest hundreth. 1.30
-6509.2764
To find the number of neutrons in an atom, round the mass number to the nearest whole number and subtract the atomic number.