To find 10% of a number, follow these steps:
1. Understand the percentage: 10% means 10 out of 100. In other words, you want to find what part 10 out of 100 is of the whole number.
2. Convert the percentage to a decimal: Percentages are simply fractions out of 100. Therefore, 10% can be converted to a decimal by dividing by 100. So, 10% becomes 0.10.
3. Multiply the decimal by the number: We need to multiply the decimal form (0.10) by the number in question, which is 40.
So, calculate:
[tex]\[ 0.10 \times 40 \][/tex]
4. Perform the multiplication: Carry out the multiplication to get the final answer.
Thus, [tex]\( 0.10 \times 40 = 4.0 \)[/tex].
Therefore, 10% of 40 is 4.0.
