an instructor makes $15 more per hour than an assistant. If the combined hourly wage of the instructor and assistant is $65 , what is the hourly wage of the assistant?

a + a + 15 = 65

2a = 50

a = 25

2+2

To find the hourly wage of the assistant, let's assume the assistant's wage is x dollars per hour.

Since the instructor makes $15 more per hour than the assistant, the instructor's wage would be (x + $15) per hour.

The combined hourly wage of the instructor and assistant is given as $65. This can be expressed by the equation:
x + (x + $15) = $65

Simplifying this equation:
2x + $15 = $65

Subtracting $15 from both sides of the equation:
2x = $65 - $15

2x = $50

Dividing both sides of the equation by 2:
x = $50 / 2

x = $25

Therefore, the hourly wage of the assistant is $25.