Find the difference of (t−8)−(t+15)

-23

Step-by-step explanation:

(t−8)−(t+15) = t-8-t-15 (one plus and one minus makes one minus)

t-8-t-15 = -8-15 (t-t = 0)

-8-15 = -23

Step-by-step explanation:

(t-8)-(t+15)

t-8-t-15

t-t-8-15

-23

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