TEN, the same as the number of fingers most people have.
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-- The decimal system (base-10) uses 10 digits to write all numbers. -- The binary system (base-2) uses 2 digits to write all numbers.
Decimal numbers.
The Base-10 number system is known as the decimal system and has 10 digits to show all numbers 0,1,2,3,4,5,6,7,8,9 using place value and a decimal point to separate whole numbers from decimal fractions.
Whole numbers are a proper subset of decimal numbers. All whole numbers are decimal numbers but not all decimal numbers are whole numbers.
To find the base, percentage and rateperce ntage = base * rate (rate in decimal)base = percentage/rate (rate in decimal)rate = percentage/base * 100%Example:Base = 10Percentage = 2Rate?Rate = 2/10 * 100% = 20%