CPM Homework Help : CCA2 Problem 10-55

At McDugal’s Golden Parabola, Ramona bought four hamburgers and two milkshakes for $\$13.50$ . Inez bought three hamburgers and one milkshake and spent $\$9.25$ . What is the cost of a hamburger? A milkshake?

Hint:

Write an equation for each sentence.
You should have two equation with two variables.
Solve the system of equations.

Step:

$4H+2M=\$13.50$

Now write the other equation and solve the system.