p = 2l + 2w = 35...If the width of the flower bed is 15 feet, what is its length?

Question

Answer as an evaluation of a function

Answer 1

The function you are given has the variables p, l, and w.

 

p = perimeter = 35

 

l = length = ?

 

w = width = 15

 

 

Next, substitute the given values into the function.

 

p = 2l + 2w

 

35 = 2l + 2(15)

 

35 = 2l + 30

 

 

Subtract 30 on bot sides of function.

 

5 = 2l

 

 

Divide both sides of the function by 2.

 

2.5 = l

 

 

The length is 2.5 feet.