if 8 men takes 9 days to complete a several task how many days will 1 man take to complete the same task???

Solution,

____________________

Men days

8 --------------> 9

1 -------- -----> X( suppose)

_________________

In case of indirect proportion,

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answer:

c. the third graph

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