You are preparing to tile the floor of a rectangular room that is 15? feet by 18? feet in size. the tiles you plan to use are square, measuring 12 inches on each side, and are sold in boxes that contain enough tile to cover 25 square feet. how many boxes of tiles must you buy?

11 boxes

Step-by-step explanation:

The area of the floor is the product of its length and width:

... (15 ft)·(18 ft) = 270 ft²

Then the number of boxes required will be the integer number equal to or just greater than ...

... 270 ft²/(25 ft²/box) = 10.8 boxes

11 boxes are required.

problem:

f(x) = - 2/3x + 5; f(5/2)

substitute 5/2 in for x:

f(5/2) = -2/3(5/2) + 5

simplify the right side:

f(5/2) = -5/3 + 5

f(5/2) = 10/3

f(5/2) = 10/3

i hope this !

a function could be identified in 3 ways either on a chart,graph, or ordered pairs. first a function is that each point has its own. the rule is that there can be many x's to one y but there can not be 2 x's at different y's. so on a graph when you put a straight line through the y's there should be one dot only to be a function.

step-by-step explanation: