Given the perimeter of a rectangle and either the length or width, find the unknown measurement using the appropriate formula. the perimeter is 76 cm and the length is 20 cm. what is the width of the rectangle? show all your work

The fromula of a perimeter of rectangle:

P = 2(l + w)

We have P = 76 cm and l = 20 cm.

Substitute:

2(20 + w) = 76      use distrubutive property

(2)(20) + (2)(w) = 76

40 + 2w = 76     subtract 40 from both sides

2w = 36      divide both sides by 2

w = 18

answer: yes, since the line has a steeper rate of change than the exponential the y-values will be greater and they will only intersect one time.