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Describe how to find the sum p + q using a number line if p = -19 and q = 12.1.

(1 point)
First find on a number line, then count
spaces to the right.

1 answer

To find the sum \( p + q \) using a number line with \( p = -19 \) and \( q = 12.1 \), follow these steps:

  1. Locate \( p \) on the Number Line: Start by finding \(-19\) on the number line. This point is 19 units to the left of zero.

  2. Count Spaces to the Right: From \(-19\), you need to move to the right by the value of \( q \), which is \( 12.1 \).

    • First, move 12 spaces to the right. This will take you from \(-19\) to \(-7\).
    • Next, move an additional 0.1 space to the right. This brings you to \(-6.9\).

  3. Identify the Final Position: The final position on the number line represents the sum \( p + q \).

Thus, \( p + q = -19 + 12.1 = -6.9 \).

In summary, by locating \(-19\) and moving right \( 12.1 \) spaces, you find that the sum \( p + q = -6.9 \).