Question

line segment ab measures 18 units.
what is d, the distance between tick marks on the number line?
1 unit
2 units
3 units
9 units

Explanation:

Step1: Count the intervals between A and B

There are 9 intervals between A and B.

Step2: Set up the equation

Let \(d\) be the distance between tick - marks. Then \(9d=18\).

Step3: Solve for \(d\)

Divide both sides of the equation \(9d = 18\) by 9. So \(d=\frac{18}{9}\).

Answer:

\(d = 2\) units, so the answer is 2 units.