Question

Which equation correctly represents the distance between - 15.1 and -3.9 on a number line?

- 3.9 - (-15.1)] = 11.2
-3.9 - 15.1 = -11.2
|- 15.2 + (-3.9) |= 19
-15.1 - 3.9 = -19

Answer 1

Explanation:

Keep in mind that distance is positive, not negative. Eliminate the negative results.

- 3.9 - (-15.1)] = 11.2 is correct. -(-15.1) - 3.9 is approximately 15 - 4, or 11, which agrees with the 11.2 correct result.