Question

-3/4+8,5×(0,021÷0,01-2,51)

Answer 1

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Answer 2

Let's solve the expression step by step:

1. Start with the parentheses: 0.021 ÷ 0.01 = 2.1 2.1 - 2.51 = -0.41

2. Now, the expression becomes: -3/4 + 8.5 × (-0.41)

3. Calculate the multiplication: 8.5 × (-0.41) = -3.485

4. Finally, add the first term: -3/4 + (-3.485)

To add the fractions and the decimal number, we need to find a common denominator: -3/4 = -0.75 (by dividing the numerator and denominator by 4) Now the expression becomes: -0.75 + (-3.485)

5. Now, add the two numbers: -0.75 + (-3.485) = -4.235

The final result is approximately -4.235.