Chantel fertilized her backyard. She used three full tanks full of fertilizer. Each tank held three-fourths of a gallon. Her backyard is 12 1/2 yards by 15 yards. How many gallons of fertilizer were used on each square yard

3/250 gallons per square yard

Step-by-step explanation:

To find gallons per square yard, divide gallons by square yards.

Chantel used (3 tanks) * (3/4 gallon/tank) = (9/4 gallons).

Her backyard area is (12 1/2 yd) * (15 yd) = 187 1/2 yd².

The rate of application was ...

(9/4 gallons) / (375/2 yd²) = 3/250 gallons/yd² = 0.012 gallons/yd²