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Susan work at a T-shirt printing business. Of 1,900 T-shirts shipped, 171 are printed improperly. What is the experimental probability that a T-shirt is printed correctly??

Respuesta :

Let's set up a proportion.

 171       x
____    ___

1900    100

171 x 100 = 17100
17100/1900 = 9
100-9 = 91

The correct answer is 91. 

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