Randy paid $16 in all for 11 postcards.
How many two-dollar postcards did he buy? How many one-dollar postcards did he buy?
+36916 t = two dollar cards cost = 2t
n = one dollar cards = (11-t) cost = 1(11-t) summed = 16 dollars
2t + (11-t) = 16 can you take it from here? Solve for 't' then one dollar cards = 11- t
+36916 t = two dollar cards cost = 2t
n = one dollar cards = (11-t) cost = 1(11-t) summed = 16 dollars
2t + (11-t) = 16 can you take it from here? Solve for 't' then one dollar cards = 11- t
