The cafeteria staff made sandwiches. Each sandwich had either rye or white bread, either ham or turkey, and either cheese or no cheese. the staff made an equal number of each type of sandwich. the sandwiches were placed on a tray. without looking Mary will choose a sandwich. what are the chances that Mary will get a sandwich with cheese

Step-by-step explanation:

According to the problem, we have 6 types of sandwiches in total.

Also, they prepared equal number of type of sandwich. That means we can treat the problem as units.

Basically, there's one event, which is the sandwich with cheese Mary is choosing. There are 6 total outcomes, all sandwiches types.

The probability is

Which is equivalent to 17%.

Therefore, the probability of Mary getting a sandwich with cheese is 1/6, or 17% approximately.

i think you would have to divide the money he had saved, which is $2,000 by the time he plans on exercising which is 40 hours, and the answer you get should tell you the answer to your question.