Question

The distance a spring stretches varies directly with the weight on the spring. if a spring stretches 7.5 inches with 55 pounds attached, how far will it stretch when 38 pounds are attached?

Answer 1

7.5 / 55 = x / 38
cross multiply
(55)(x) = (7.5)(38)
55x = 285
x = 285/55
x = 5.18 inches <=== or if it needs to be rounded = 5.2 inches