Report all decimal places: 3.7 + 7.289 + 4 =

Rationale

14.989

To solve the expression 3.7 + 7.289 + 4, we must ensure that we report the sum with all decimal places included. This calculation results in a total of 14.989, which maintains precision by accounting for the decimal values of each term in the sum.

A (14.989) CORRECT

This choice correctly represents the sum of the numbers 3.7, 7.289, and 4 when calculated with attention to all decimal places. Adding these values together yields exactly 14.989, demonstrating the importance of preserving decimal precision in mathematical operations.

B (5.226) YOUR ANSWER

This choice is incorrect as it does not reflect any part of the addition performed. The sum of the three values far exceeds 5.226, indicating a misunderstanding of the numbers involved in the calculation.

C (15) YOUR ANSWER

This option is also incorrect since it rounds the correct total of 14.989 to a whole number without accounting for the decimal precision. While 15 is close to the actual sum, it fails to represent the exact value calculated.

D (15.07) YOUR ANSWER

This choice is incorrect as well; while it presents a sum that is higher than the actual total, it does not accurately reflect the addition of the three numbers. The presence of "07" suggests an arbitrary rounding which does not correspond to the actual result of the calculation.

Conclusion

The accurate sum of 3.7, 7.289, and 4 is 14.989, which reflects the necessity of reporting all decimal places in mathematical expressions. Other choices either miscalculate the sum or neglect to maintain the precision required for a proper answer. This highlights the importance of careful arithmetic to ensure accurate representation of numerical results.

Report all decimal places: 3.7 + 7.289 + 4 =

14.989

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