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.

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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(52878) About Me  (Show Source):
You can put this solution on YOUR website!
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Use the proportion


    0.8%2F4 = x%2F7.


From the proportion, find the unknown value of the stretch


    x = %280.8%2A7%29%2F4 = 1.4 meters.

Solved.