Jia is tiling a floor. the floor is a square with side
length 12 feet. jia wants the tiles to be squares
with side length 2 feet. how many tiles does jia
need to cover the entire floor? note that the area
of a square is s? , where s is the side length. explain.

36 tiles

Step-by-step explanation:

First, find area of the square floor knowing the formula as;

Area=

where s= side of a square.

If one side of the floor is 12 feet, then Area=

Next, find the area of each tile using the same formula and given s=2 feet;

Area(tile) =

To find the number of tiles needed to cover entire floor, divide area of the floor by area of one tile; 144 / 4 = 36 tiles

c. y = 1/4 x + 5

step-by-step explanation:

first, put the equation of the line on the graph into slope-intercept form

(y = mx + b):   y = -4x + 8

second, a perpendicular line has to have "an opposite/reciprocal slope" to the original slope. so, find the "m" value in your original equation (it's -4, right? )

original slope: m = -4   perpendicular slope: change the sign to its opposite and find the reciprocal ("flip" the number)

new slope is now positive (b/c the original slope was negative 4), and it's 1/4 (not the original slope of 4 or 4/1)

16

step-by-step explanation: