Question

Greg needs at least $1.60 in stamps to mail a package. He has 28¢ and 4¢ stamps. He can use no more than twenty 4¢ stamps as he only has one book left.
a.Write a system of linear inequalities to represent this situation, then graph.
b.give two possible combinations of stamps that Greg can use to ensure he mails his package with the correct postage. give two possible combinations of stamps that Greg can use to ensure he mails his package with the correct postage.

Answer 1

Number of Cents greg requires to mail a Package =$ 1.60

Number of Cents Possessed by Greg =28 cents

1 Cent = 0.01 $

28 Cent =28 × 0.01 $=0.28$

Number of cent in form of Stamp that greg has =4 Cent Stamps

Number of Cent stamps that Greg can use=24 Cent Stamp→$0.24

Amount of money that greg can spend to mail the package

 = $0.28+4×$0.24

 =0.28+$0.96

 = $1.24

 Greg can't mail this package, if he needs $1.60 to mail the package.