Answer:
She uses 10.8 yards per curtain
Step-by-step explanation:
Let each curtain is of x yards,
Thus, the total fabric she used for 6 curtains = 6x yards,
Since, the remaining fabric she will have after making the curtains = 19.7 yards,
So, the total fabric she has initially = Fabric she used for 6 curtains + Remaing fabric
= ( 6x + 19.7 ) yards,
But, the total fabric she has initially = 84.5 yards,
⇒ 6x + 19.7 = 84.5
⇒ 6x = 64.8
⇒ x = 10.8
Hence, she uses 10.8 yards per curtain.
