The quantities of x and y are proportional. find the constant of proportionality (r) in the equation y= rx

The value of the constant of proportionality r is 1

Step-by-step explanation:

we know that

A relationship between two variables, x, and y, represent a proportional variation if it can be expressed in the form or

Find the value of the constant of proportionality r

For x=5.8, y=5.8

substitute

The linear equation is

therefore

The value of the constant of proportionality r is 1

x= 149. 24+7=31. 180-31=149

your welcome

area of part 1:

a1=base*height/2=(8+2)*(8-2-2-1)/2=10*3/2=15 ft^2

area of part 2:

a2=length*width=(8+2)*1=10 ft2

area of part 3:

a3=length*width=8*2=16 ft2

total shaded area : a1+a2+a3=41 ft2

total area of the reactangle : a=16*8=128 ft2

total area of the nonshaded region : 128-41=87 ft2