In this case the two equations<span> describe lines that intersect at one particular point. Clearly this point is on both lines, and therefore its coordinates (x, y) will satisfy the </span>equation<span> of either line. Thus the pair (x, y) is the one and only </span>solution to the system of equations<span>.</span>
Hey there, It take 45 min to complete 75% of the wall 1% = 45 / 75 = 0.6 100 % = 0.6 x 100 = 60 min It takes her 60 mins or 1 hour to finish building the wall.
