Fraction help

Question

A cook needs 12 lb of flour. He wants to spend the least amount of money. If a 2lb bag cost $1.59 and a 5lb bag cost 2.89 how many bags of each type of flou should he buy?

Answer 1

12=5+5+2 or 12=2+2+2+2+2+2 are your choices

$2.89+$2.89+$1.59=$7.37

6*$1.59=$9.54

He should buy two 5 lb bags and one 2 lb bag.