The new Xerox machine working alone can complete a job in 20 minutes. To do the same job it would take the old Xerox machine 50 minutes. How long would it take them to complete the job if
they worked together?

ruth is 6 years old

step-by-step explanation:

6 + 24 = 30,   so 6/30 = .2  

if you do 1/5 it also equals .2, so that is the answer.

the formula of a slope:

we have the points (-2, 7) and (2, 3). substitute:

step-by-step explanation:

two pairs of adjacent sides are of equal length. this implies that one diagonal divides the kite into congruent triangles, and so the angles between the two pairs of equal sides are equal in measure. it also implies that the diagonals are perpendicular.