Answer :
The expression for the length of fabric used for each doll is [tex]\frac{16}{z}\ yards[/tex]
Solution:
Given that,
Margaret has 16 yards of fabric
she is making dresses for z doll
Therefore,
Total length of fabric = 16 yards
Number of dresses = z dolls
Therefore,
[tex]\text{ length of fabric used for each doll } = \frac{ \text{ Total length of fabric }} {\text{ z dolls }}\\\\\text{ length of fabric used for each doll } = \frac{16}{z}\ yards[/tex]
Thus, the expression for the length of fabric used for each doll is [tex]\frac{16}{z}\ yards[/tex]