A271⁄2-mile stretch of road needs repaving. a company bid on the repaving project, saying they could repave 21⁄4 miles of road per week. how many weeks will the company take to completely repave the stretch of road?

turn each number into an improper fraction

27 1/2 = (2*27+1 )/2  = 55/2

2 1/4 = (4*2+1)/4  = 9/4

55/2 divided by 9/4

copy dot flip

55/2 * 4/9

220/18

110/9                                       12*9 = 108

12    2/9  weeks

or if we round   13 weeks

x² + 11x + 18 < 0  

[-11 ± sqrt(121 - 72)]/2 = (-11 ± 7)/2  

solution: (-9, -2)

step-by-step explanation:

step-by-step explanation:

for exempl this   system of equations   y = x - 3

                                                                y = 2x - 5

look   the line : y = x -3     ( red)

                            the line : y = 2x -5 ( bleus)