My front lawn measures 2 1/2 yards by 5 1/3 yards. To fertilize it, I need 1/2 ounce of fertilizer per square foot. How much fertilizer must I buy?
2 + 1/2 yds = (5/2) (3ft) = 15/2 = 7.5 ft
5 + 1/3 yds = ( 16/3) (3 ft) = 16 ft
Amount needed =
( 7.5 * 16 ) sq ft * (1/2) oz =
60 oz
