Dawn and Emily started with the same length of ribbon.
Their lengths were equal.
Explanation
Equality of length means two ribbons have the same amount of material. To verify this, measure both ribbons using the same units and instrument (for example, meters with a ruler). If D denotes Dawn’s length and E denotes Emily’s length, then D = E. Even if pieces are cut or rearranged, the total length each person originally had remains the same unless material is added or removed. To confirm equality in practice, compare the sums of the lengths of all pieces attributed to each person or measure the entire uncut lengths directly.
Key Points
- 1, Dawn’s and Emily’s lengths are equal: D = E.
- 2, Cutting or combining pieces does not change the total length each started with unless material is added or removed.
- 3, Use the same units and an accurate measuring tool to verify equality.