Final answer:
To write 10% as a decimal, you simply move the decimal point two places to the left, making it 0.10.
Step-by-step explanation:
To write 10% as a decimal, you simply move the decimal point two places to the left. The percent sign (%) denotes 'per hundred,' so 10% is the same as 10 per hundred, which is equal to 0.10.
Learn more about Converting percent to decimal