Final answer:
Alejandro's specific error in converting a decimal to a percent is not given, but such errors usually involve moving the decimal point incorrectly or misinterpreting the number of places to move. Conversions and operations must be completed with attention to the correct number of significant figures and proper direction of decimal movement.
Step-by-step explanation:
Alejandro's error in converting a decimal to a percent is not stated explicitly in the context provided, but we can discuss some common errors that might occur in such conversions. When converting a decimal to a percent, the decimal should be moved two places to the right, and if there are insufficient digits, zeros must be used as placeholders. Alternatively, the number can be multiplied by 100, which has the same effect as moving the decimal two places to the right. An error in order of division would suggest that the numbers were divided in the wrong sequence, which would result in an inaccurate answer.
When working with scientific notation, such as 1.6 x 10² or 2.4 x 10⁻², it is crucial to move the decimal accordingly; to the right for positive exponents and to the left for negative exponents. Misunderstanding the direction of the decimal move or moving it the incorrect number of spaces could lead to errors. For multiplication and division with significant figures, it is important to round the result to the number of digits that correspond to the number with the least significant figures.