Help me

Rita is considering buying some books from an online bookstore in America. the books are priced at $US8 each, and there is a $US12 for postage and handling, regardless how many books she orders. the same books can be bought from her local bookshop for $A12 each. the australian dollar is equal to .80 cents in american cents. how many books should rita buy to make it cheaper to get them from the online store?

Question

Help me

Rita is considering buying some books from an online bookstore in America. the books are priced at $US8 each, and there is a $US12 for postage and handling, regardless how many books she orders. the same books can be bought from her local bookshop for $A12 each. the australian dollar is equal to .80 cents in american cents. how many books should rita buy to make it cheaper to get them from the online store?

nincompoop · Answer

TRY solving this on your own

nincompoop · Answer

http://www.ck12.org/algebra/Systems-of-Linear-Equations-in-Two-Variables/lesson/Systems-of-Two-Equations-and-Two-Unknowns/