1. Set up the following word problem as a proportion and solve. Then write your answer as a complete sentence. In a random sample of 200 cars of a particular model, 3 have a manufacturing defect. At this rate, how many of 10,000 cars of the same model will have a manufacturing defect?

Respuesta :

200 / 3 = 10,000 / x....200 cars to 3 defects = 10000 cars to x defects
cross multiply
(200)(x) = (3)(10,000)
200x = 30,000
x = 30,000 / 200
x = 150

So, at this rate, 150 of 10,000 cars will have a defect.