To determine which of the options is equivalent to the number 391.072, we can break down the number into its components based on place values:
- 3 in the hundreds place = 300
- 9 in the tens place = 90
- 1 in the ones place = 1
- 0 in the tenths place = 0.0
- 7 in the hundredths place = 0.07
- 2 in the thousandths place = 0.002
Now we combine these components:
391.072 = 300 + 90 + 1 + 0.07 + 0.002
Now, let’s analyze the options:
A. 3,000 + 90 + 1 + 0.07 + 0.002 - This equals 3,091.072 (incorrect). B. 300 + 90 + 1 + 0.07 + 0.002 - This equals 391.072 (correct). C. 300 + 9 + 1 + 0.07 + 0.002 - This equals 310.072 (incorrect). D. 300 + 10 + 9 + 0.7 + 0.02 - This equals 319.72 (incorrect).
The correct answer is B. 300 + 90 + 1 + 0.07 + 0.002.