Ronaldo plans to take courses in the carptry well cost 5250 he mows lawn for $35. How many lawns will he have to mow to pay for his courses?

To find out how many lawns Ronaldo will have to mow to pay for his courses, we divide the cost of the courses by the amount he earns per lawn:

5250 / 35 = <<5250/35=150>>150

Ronaldo will have to mow 150 lawns to pay for his courses.