Question

TWO-Variable Equations as Models

Example: Miranda has 55 feel of fencing. She wants to use all the fencing le
create a reclangular garden. The equation 21 + 2W - 5S, where l is the length of
the garden and w s the width, mode's the scenario. This equation can be used to
find one dimension of the garden if the other dimension is known.
Think about constraints
Each side must be
(greater)
substit
Fach side must be
then 27.5
Each side must be greater than a
1
nches

Answer 1

The given equation 21 + 2W - 5S can be used to find the dimensions of a rectangular garden. Let's find the width of the garden if the length is known to be 27.5 feet.

Step-by-step explanation:

The given equation 21 + 2W - 5S can be used to find the dimensions of a rectangular garden when the total length of fencing is known. Let's use the given equation to find the width of the garden if the length is known to be 27.5 feet.

1. Substitute the given values into the equation: 21 + 2W - 5(27.5).
2. Simplify the equation: 21 + 2W - 137.5.
3. Combine like terms: 2W - 116.5.
4. Add 116.5 to both sides: 2W = 116.5.
5. Divide both sides by 2: W = 58.25.

Therefore, the width of the rectangular garden would be 58.25 feet if the length is 27.5 feet.