Mr. McKay wrote an algebra test with a total of 15 questions consisting of multiple choice and short response style questions. Multiple choice questions, x, were worth 5 points each and short response questions, y, were worth 10 points each. There were 100 total possible points on the test. Write a system of linear equations for this situation to determine the number of each type of question. Solve by graphing. Create the equations without any spaces. Separate each equation with a comma.

Write your answer as an ordered pair without any spaces (#,#).