If they work together, Tarun, Sarah, and John can clean the house in 1 3/5 hours. Tarun and Sarah each work at the same rate, but John takes twice as long as either of the others. How much time would it take to clean the house with just Tarun and Sarah working together?

8 2/3 is the answer

step-by-step explanation: just use a calculator

the system of inequalities is

step-by-step explanation:

step 1

find the equation of the dashed line

we have the points

(0,0) and (3,1)

the line passes through the origin, so, is a direct variation

find the slope

the equation of the dashed line is

the solution of the inequality a s the shaded area above the dashed line

therefore

the equation of the inequality a is

step 2

find the equation of the solid line

we have the points

(4,0) and (0,4)

find the slope

the equation of the solid line is

the solution of the inequality b s the shaded area below the solid line

therefore

the equation of the inequality b is

step 3

the system of inequalities is