15.12: Exercises

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Exercise $\PageIndex{1}$

Assume that we execute the following assignment statements:

width = 17
height = 12.0
delimiter = '.'

For each of the following expressions, write the value of the expression and the type (of the value of the expression).

width/2
width/2.0
height/3
1 + 2 * 5
delimiter * 5

Use the Python interpreter to check your answers.

Exercise $\PageIndex{2}$

Practice using the Python interpreter as a calculator:

The volume of a sphere with radius r is 4/3 π r³. What is the volume of a sphere with radius 5? Hint: 392.7 is wrong!
Suppose the cover price of a book is $24.95, but bookstores get a 40% discount. Shipping costs $3 for the first copy and 75 cents for each additional copy. What is the total wholesale cost for 60 copies?
If I leave my house at 6:52 am and run 1 mile at an easy pace (8:15 per mile), then 3 miles at tempo (7:12 per mile) and 1 mile at easy pace again, what time do I get home for breakfast?