SOLUTION: a cafe sells a regular cup of coffee for $1 and a large cup for $1.50. Melissa and her friends buy 5 cups of coffee and spend a total of $6. Explain how to write and solve a system

Algebra ->  Coordinate Systems and Linear Equations  -> Linear Equations and Systems Word Problems -> SOLUTION: a cafe sells a regular cup of coffee for $1 and a large cup for $1.50. Melissa and her friends buy 5 cups of coffee and spend a total of $6. Explain how to write and solve a system      Log On


   

Question 518731: a cafe sells a regular cup of coffee for $1 and a large cup for $1.50. Melissa and her friends buy 5 cups of coffee and spend a total of $6. Explain how to write and solve a system of equations o find the number of large cups they bought.
Answer by richwmiller(17219) About Me  (Show Source):
You can put this solution on YOUR website!
1*x+1.5y=6
x+y=5
subtract
.5y=1
y=2 large
x=5-2=3 regular