The local store is having a sale on ground beef - $10 for 3 pounds. sylvia needs 12 pounds of meat to make 50 hamburgers. how much will the ground beef for each hamburger cost?

10/3 = x / 12 ... $ 10 to 3 lbs = $ x to 12 lbs

cross multiply

3x = 120

x = 120/3

x = 40 ... so it is gonna cost Sylvia $ 40 for the meat.

she plans on making 50 burgers ... 40 ($ worth of meat) / 50 (burgers) =

0.8 ... so for each burger, the meat will cost 0.80 or 80 cents <==