The perimeter of a triangle is 48 inches and the sides are in the ratio of 3: 4: 5. find the length of the longest side.

a) 4
b) 9
c) 16
d) 20

step-by-step explanation:

what grade level is this? need to know so i can look in my old textbooks!

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