SOLUTION: If a spring stretches 0.8m when a 4-kg weight is attached to it, how much will it stretch when a 7-kg is attached to it? Round to the nearest tenth.

SOLUTION: If a spring stretches 0.8m when a 4-kg weight is attached to it, how much will it stretch when a 7-kg is attached to it? Round to the nearest tenth.

Algebra.Com

Question 1147144: If a spring stretches 0.8m when a 4-kg weight is attached to it, how much will it stretch when a 7-kg is attached to it? Round to the nearest tenth.
Answer by ikleyn(52879) (Show Source): You can put this solution on YOUR website!
.


Use the proportion


     = .


From the proportion, find the unknown value of the stretch


    x =  = 1.4 meters.

Solved.

RELATED QUESTIONS
If a spring stretches 0.6m when-kg weight is attached to it, how much will it stretch... (answered by Alan3354,amalm06)

The amount a spring will stretch varies directly with the mass attached to the spring.... (answered by Boreal)

A pleasant day to you Sir / Madam, please help me with these word problems about direct... (answered by MathLover1)

a spring stretches 23 centimeters for every 6 kg of weight By how many centimeters will... (answered by ewatrrr)

The length of a spring varies directly with the amount of weight attached to it. When a... (answered by Cromlix)

Hooke�s law states that the distance D a spring stretches varies directly with the weight (answered by stanbon)

a spring stretches to 22cm with a 70g weight attached to the end. with a 105g weight... (answered by htmentor)

A weight of 250g stretches a spring to a distance of 9.5 cm. If the distance stretched is (answered by Edwin McCravy)

When a 49 pound weight is attached to a spring, the spring stretches 7 inches. Assume... (answered by ewatrrr)