What is the expanded form of 23.75 using base-10 number system?

The expanded form of 23.75 using base-10 number system is:

20 + 3 + 0.7 + 0.05

To express the number 23.75 in expanded form using the base-10 number system, we will separate the whole number part from the decimal part and write them as sums of their place values.

The whole number part, 23, can be written as 20 + 3. The decimal part, 0.75, can be written as 0.7 + 0.05.

Putting it all together, the expanded form of 23.75 in base-10 is:

20 + 3 + 0.7 + 0.05