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? (Remember 3 feet = 1 yard)

Answer 1

find perimiter
P=2(L+W)
conver to feet
3yd=3*3ft=9ft
2yd=2*3ft=6ft
L=9
W=6
P=2(9+6)
P=2(15)
P=30

1 gallon per 10ft
30/10=3
3 gallons

Answer 2

So first you have to figure out how many feet of fencing you have, so you can get the amount of paint. We can add 6 and 4 (3+3, 2+2) to get 10, and then multiply by 3 to get 30 feet. Now you can divide by 10 to get 3 gallons of paint, which is your final answer. I hope this helps!