Question

Elaine is painting a fence. she knows that she needs 1 gallon of paint for each 10 feet of fencing. The fencing will enclose a rectangular yard that is 3 yards long and 2 yards wide. how much paint does Elaine need?

Answer 1

9+9+6+6=30feet which equals 3 gallons of pain to cover the fence

Answer 2

She needs 3 gallon of paint for fencing.

Explanation:

Given,

The fencing will enclose a rectangular yard that is 3 yards long and 2 yards wide,

⇒ Total fencing = Perimeter of the rectangle that is 3 yards long and 2 yards wide

Since, the perimeter of a rectangle = 2 ( length + width )

⇒ Total fencing = 2 ( 3 + 2 ) = 2(5) = 10 yards,

Also, 1 yards = 3 feet,

⇒ Total fencing = 3 × 10 = 30 feet.

According to the question,

She needs 1 gallon of paint for each 10 feet of fencing,

Thus, the quantity of paint needed for fencing = Total paint needed for 30 feet

= 3 × Total paint needed for each 10 feet

= 3 × 1 gallon

= 3 gallon,

Hence, she needs 3 gallon of paint for fencing.