Thomas commence sa journée avec 20,75$ en poche , il fait 4 achat de 3,85$ chacun et 2 autres de 4 et 7/20$ chacun. Il reçoit 5 sommes de 6,24$ chacun et 3 autres de 1 13/25 chacun. Combien d'argent à t il a la fin de la journée?

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

19

step-by-step explanation: