She worked at a steady rate after the first day.Use an equation in point-slope form to determine how many days Lizzy took to place all of the 100 tiled needed to finish the floor,
She laid 5 tiles the first day, and 10 tiles each day thereafter: x = number of days Lizzy has worked laying tiles Total Tiles = 5 + 10(x-1)] Test this equation with the information you are given: 35 = 5 + 10(4 - 1) = 5 + 10(3) = 5 + 30 = 35 <<<<< TRUE So, now you can solve the problem. However, it is unclear to me whether Lizzy needs to lay 100 MORE tiles, or 100 tiles, total.... 100 = 5 + 10(x - 1) 100 = 5 + 10x - 10 100 - 5 + 10 = 10x 105 = 10x 10.5 = x It takes Lizzy 10.5 days to lay 100 tiles. 135 = 5 + 10(x - 1) 135 = 5 + 10x - 10 135 - 5 + 10 = 10x 140 = 10x 14 = x It takes Lizzy 14 days to lay 135 tiles.
