Question 174037
let S represent the cost of a whole sandwich
:
1.25+S+1.5S=9.50 or (3/2)S=8.25
:
{{{(3/2)S=8.25}}}
:
{{{3S=16.50}}}mult both sides by 2
:
{{{highlight(S=5.50)}}}dollars
:
this obviously assumes that a 1/2 sandwich is 1/2 the cost of a whole sandwich