Seth has a garden with dimensions 9 ft long d 8 ft wide. He wants to enlarge the garden to an area of 120 square ft. How much farther will he need to extend the length of the garden to attain his desired area

1 answer

The current area of Seth's garden is 9 ft * 8 ft = 72 square ft.

To reach his desired area of 120 square ft, he needs to increase the area by 120 square ft - 72 square ft = 48 square ft.

Since the width is already 8 ft, Seth only needs to extend the length of the garden. Let x be the amount he needs to extend the length of the garden. The new area will be (9 ft + x) * 8 ft = 120 square ft.

Expanding the equation gives 72 ft + 8x = 120 square ft.

Subtracting 72 ft from both sides gives 8x = 48 square ft.

Dividing both sides by 8 gives x = 6 ft.

Therefore, Seth needs to extend the length of the garden by 6 ft to reach his desired area of 120 square ft.