Question 924457

let tax be {{{x}}}% or{{{x/100}}}

given price {{{p= 2375pesos}}} and total bill {{{2530pesos}}}
you need to find {{{x}}}% (or {{{x/100}}}) of {{{p=2375pesos}}}, add it to the {{{p}}} to get the total bill of {{{2530pesos}}}

so, 

{{{2375pesos+(x/100)2375pesos=2530pesos}}}

{{{(x/100)2375pesos=2530pesos-2375pesos}}}

{{{(x*2375pesos)/100=155pesos}}}

{{{x*2375cross(pesos)=15500cross(pesos)}}}

{{{x=15500/2375}}}

{{{x=6.526315789473684}}}

{{{x=6.53}}}% is the sales tax rate