olivia used 70% of a piece of string to make a necklace that was 35 inches long how long was the string she started with

Question

olivia used 70% of a piece of string to make a necklace that was 35 inches long how long was the string she started with

Answer 1

.7S = 35

S = 35/.7 = 50 inch string originally

70% of 50 = 35