Kira, Deshaun, and Michael sent a total of 98 text messages during the weekend. Deshaun sent 10 fewer messages than Kira. Michael sent 4 times as many messages as Kira. How many messages did they each send?

divide

Step-by-step explanation:

98/10,98/4 thanks

linear pair postulates

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