math
posted by Anonymous on .
Emma is installing a new tile floor. Each tile measures 12 inches by 12 inches. The room in which she is installing the tiles measures 14 feet by 10 feet. If each tile costs $1.25, how much will it cost Emma to complete her project?

first, we convert the given in same units,, let's use ft as units,, since 12 inches = 1 foot, we convert the given dimensions for the tiles into ft:
12 inches = 1 ft
12 inches = 1 ft
then we get the areas of both tiles and floor area to be installed by tiles:
A,tile = 1*1 = 1 sq ft
A,floor = 14*10 = 140 sq ft
dividing 140 and 1
140/1 = 140 tiles
each tile costs $1.25 so, we multiply this to the umber of tiles:
1.25*140 = ?
now solve for the product~
hope this helps~ :)