Gabrielle wants to put a border around her garden. It costs $1.50 per yard for the materials. Use 1.50 (2l+2w) where l is the length and w is the width of her garden to find the cost for a garden that has a length of 4 yards and width of 3 yards

Answer 1

To find the cost of the border around Gabrielle's garden, we can use the formula you provided, which is \( 1.50(2l + 2w) \).

Given:

• Length \( l = 4 \) yards
• Width \( w = 3 \) yards

First, we need to calculate the perimeter of the garden using the formula for perimeter of a rectangle:

\[ P = 2l + 2w \]

Substituting in the values:

\[ P = 2(4) + 2(3) \]

\[ P = 8 + 6 = 14 \text{ yards} \]

Now, we can calculate the cost using the cost per yard:

\[ \text{Cost} = 1.50 \times P = 1.50 \times 14 \]

Calculating the cost:

\[ \text{Cost} = 1.50 \times 14 = 21.00 \]

Thus, the cost for the border around Gabrielle's garden is $21.00.