1. ## Transposition question

i had the most difficult question given to me the other day and i still dont know how to do it!

in the following formulae transpose to make the given variable the subject of the formula.

A. stress= load divided area for area

find out its valu when stress = 125KN/m2 and load = 213.5KN to 1 decimal place.

could someone please show me the steps into how to work this out!!!

2. Originally Posted by jm16
i had the most difficult question given to me the other day and i still dont know how to do it!

in the following formulae transpose to make the given variable the subject of the formula.

A. stress= load divided area for area

find out its valu when stress = 125KN/m2 and load = 213.5KN to 1 decimal place.

could someone please show me the steps into how to work this out!!!
let stress be $\displaystyle S$
let load be $\displaystyle L$
let area be $\displaystyle A$

then we have $\displaystyle S = \frac LA$

$\displaystyle \Rightarrow SA = L$ ................multiplied both sides of the equation by $\displaystyle A$

$\displaystyle \Rightarrow A = \frac LS$ .................divided both sides by $\displaystyle S$

now you can answer the question (?)