1.5 + (0.7 + (1.4 – 0.5)) = ____?
- 2.1
- 3.1
- 2.5
- None of these
Explanation
To evaluate the expression, follow the order of operations (PEMDAS):
1. Evaluate the innermost parentheses:
1.4 - 0.5 = 0.9
So, the expression becomes:
1.5 + (0.7 + 0.9)
2. Evaluate the next set of parentheses:
0.7 + 0.9 = 1.6
Now, the expression becomes:
1.5 + 1.6
3. Finally, add the numbers:
1.5 + 1.6 = 3.1
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