# Thread: Costs of Various Items

1. ## Costs of Various Items

if 7 sandwiches, 10 cups of coffee and 1 piece of pie costs $4.20 and 5 sandwiches, 7 cups of coffee and 1 piece of pie costs$3.40.

How much is 1 sandwich, 1 cup of coffee and 1 piece of pie?

2. Hi pantera

Have you tried to form some equations with this information?

Lets called the price of a sandwich = S, the price of a coffee = C and the price of pie = P

Here's a start, you have:

7S+10C+1P=4.20