Penny attaches a weight of 2.5 pounds to a spring, and it stretches 18 inches. How far will the spring stretch for a weight of 6.4 pounds, assuming the rate of stretch per unit of weight stays constant?

A. 44.86 in
B. 42.43 in
C. 40.25 in
D. 46.08 in

Question

Penny attaches a weight of 2.5 pounds to a spring, and it stretches 18 inches. How far will the spring stretch for a weight of 6.4 pounds, assuming the rate of stretch per unit of weight stays constant?

 		A.	44.86 in
 		B.	42.43 in
 		C.	40.25 in
 		D.	46.08 in

anonymous · Answer

the spring is set vertical or horizontal? it does matter so tell me which

anonymous · Answer

its staying at a constant so i thing horizontally

anonymous · Answer

ok so things are simple just divide stretches and weights and you'll quickly find the unknown stretch

anonymous · Answer

so 6.4/2.8?

anonymous · Answer

times 18

anonymous · Answer

ok sweet