Arectangle has a perimeter of p centimeters. its width is b centimeters. its length is double its width. express p in terms of b.

Step-by-step explanation:

Let

x-----> the length of the rectangle

y----> the width of the rectangle

we know that

The perimeter of rectangle is equal to

so

-----> equation A

----> given problem

------->

substitute the value of x and the value of y in the equation A

the slope of the line is 60

one point on the line is (40,10)

step-by-step explanation:

in the equation outside the parenthesis the equation always tells you the slope. in this case it is 60.

in the parenthesis is also says 40 which is x because it is near the x and 10 is y because it is near y.

(3x-8) or (3x+8)

step-by-step explanation: