geometry
posted by yuku .
Mary wants to make curtains for the three windows in her living room.For each pair of curtains,she needs material measuring 6ft by 8ft.Altogether how many square yards of material does she need?

First change feet to yards.
3 feet = 1 yard
6 feet = 2 yards
8 feet = 2 2/3 yards
2 * 8/3 = 16/3 = 5 1/3 yards for each window
Each window needs 1 pair of curtains.
5 1/3 * 2 * 3 = ? 
is it 84

or is it 30 1/3

6 * 5 1/3 = 6 * 16/3 = 96/3 = 32 square yards

so its 32 square yards