Question 944082

Find the decrease in the price as a percent: 
if regular price is ${{{135}}} and sale price is ${{{83.00 }}}, then the regular price has decreased by {{{x}}}% or {{{x/100}}} of {{{135}}} and you got sale price of ${{{83.00 }}}

an equation for it is: {{{135-(x/100)135=83}}}

solve for {{{x}}}

{{{135-(135x/100)=83}}}

{{{135-83=135x/100}}}

{{{52=135x/100}}}

{{{52*100=135x}}}

{{{5200/135=x}}}

{{{x=38.52}}}%  or {{{38.52/100}}}

check:

regular price is ${{{135}}}

{{{38.52}}}% of it is ${{{135(38.52/100)=135*0.3852=52.002=52}}}

now subtract ${{{52}}} from the regular price

${{{135-52=83}}} and you got sale price of ${{{83.00 }}}