Teddy paid 48 dollars for 3 brass trinkets and 10 steel trinkets. Lindsay bought 7 brass trinkets and 4 steel trinkets and paid 54 dollars. Find the cost of a brass trinket. Find the cost of a steel trinket.
we look at the first equation, and we know that having 18 for 3 brass trinkets, or 6 for each, results in us still having steel trinkets. subtracting 18 from 48, we get thirty. dividing 30 by 10 we get 3. A brass trinket is 6, and a steel trinket is 3