SOLUTION: When a 49 pound weight is attached to a spring, the spring stretches 7 inches. Assume that the length of the spring y varies directly with the weight attached x. Write and solve a

Algebra ->  Finance -> SOLUTION: When a 49 pound weight is attached to a spring, the spring stretches 7 inches. Assume that the length of the spring y varies directly with the weight attached x. Write and solve a       Log On


   

Question 920945: When a 49 pound weight is attached to a spring, the spring stretches 7 inches. Assume that the length of the spring y varies directly with the weight attached x. Write and solve a direct variation equation to find the length of the spring when a 63 pound weight is attached.
Answer by ewatrrr(24785) About Me  (Show Source):
You can put this solution on YOUR website!
49%2F7+=+63%2Fx | Cross Multiplying to solve
x = %287%2A63%29%2F49 = 9 inches