Juan plans to build a bookcase to store his paperback books, DVDs,

Question

and CDs. He has lumber that he will use for the sides and back of the
bookcase. The bookcase will have five shelves, and each shelf will
be 2 1
2 feet long
. DVD cases are 9
16 inch wide.
a. If Juan has 60 DVDs, how many of them will fit on one shelf?
b. How wide would a DVD case have to be in order for 60 of them to
fit on one shelf? Give the answer in feet.

Answer 1

I assume you meant that each shelf is 2 1/2 feet long. Learn to type fractions.
If each DVD case is 9/16 in wide, then
30 ÷ 9/16 = 30 * 16/9 = 53.3
So, 53 will fit on a shelf.

Now for 60, just multiply 60 * 9/16 = ___ inches
convert to feet.