Given:
Length of sandbox (l)= 3 m
Breadth (b) = 2 m
Height (h) = 1 m
Cost of sand for the sand box = $4.50 per cubic meter.
To find:
The cost to completely fill the sandbox with sand.
Solution:
Volume of cuboid is
[tex]Volume =l\times b\times h[/tex]
So, volume of sand box is
[tex]Volume =3\times 2\times 1[/tex]
[tex]Volume =6 \text{ m}^3[/tex]
So, we need 6 cubic meter sand to fill the sandbox completely.
Cost of one cubic meter of sand for the sand box = $4.50
Cost of 6 cubic meter of sand for the sand box = 6 × $4.50
= $27
Therefore, the cost to completely fill the sandbox with sand is $27.