Lisa is in charge of buying door prizes for the school dance. She bought 100 items made up of $2 cups and $3
bracelets that commemorate the dance. The total cost for
the items was $260. Without knowing the numbers of each
item Lisa bought, Sandra writes this system of equations to
figure it out on her own.
c+b=100
2c+3b=260
In the equations, c represents the number of cups and b
represents the number of bracelets. How many cups did
Lisa buy?