Question 401979
Profit = income - cost
Let {{{b}}} = number of bags sold
{{{2200 = 40b - (1100 + 18b)}}}
{{{2200 = 40b - 1100 - 18b}}}
{{{22b = 3300}}}
{{{b = 50}}}
150 bags must be sold
check:
what if {{{149}}} bags are sold?
{{{P = 40b - (1100 + 18b)}}}
{{{P = 40*149 - (1100 + 18*149)}}}
{{{P = 5960 - 1100 - 2682}}}
{{{P = 2178}}}
OK