Two companies working together can clear a parcel of land in 21 hours. Working alone, it would take Company A 2 hours longer to clear the land than it would Company B. How long would it take Company B to clear the parcel of land alone? (Round your answer to the nearest tenth.)
+2094 This similar question will help you:
https://web2.0calc.com/questions/applications-using-quadratic-equations
