Question 684588


If a spring stretches {{{3.6cm}}} when {{{44kg}}} is attached, it is {{{3.6cm/44kg}}} ratio

 it will stretch {{{x}}} when {{{25kg}}} is attached, which is {{{xcm/25kg}}} ratio

stretching is proportional to attached weight, so we have

{{{3.6cm/44kg=x/25kg}}}...now cross multiply

{{{3.6cm*25kg=x*44kg}}}

{{{90cm*cross(kg)=x*44cross(kg)}}}

{{{90cm/44=x}}}

{{{2.0454545454545454545454545454545cm=x}}}....round it

{{{2.05cm=x}}}