Question

The gardern is 12m by 10m. 15% of the total area is gardern patch and 3/8 is a flowerbed. The rest of the area is lawn. Pete sprays the lawn. The spray cost 0.35 per 3m2

Answer 1

Given :

The garden is 12m by 10m. 15% of the total area is gardern patch and 3/8 is a flowerbed.

Solution :

Area of lawn = Area of garden - area of garden patch - area of flowerbed.

`A = 12* 10 - 12* 10 * 0.15 - (3)/(8) * 12 * 10\\\\A = 57 \ m^2`

Total cost of spray is given by :

`Total \ cost =Total\ area * cost \ per \ area\\\\T = 57 * (0.35)/(3) \\\\T = \$6.65`

Hence, this is the required solution.