IDNLearn.com provides a user-friendly platform for finding and sharing knowledge. Whether your question is simple or complex, our community is here to provide detailed and trustworthy answers quickly and effectively.

A rectangular storage container with an open top is to have a volume of 20 m3. The length of its base is three times the width. Material for the base costs $5 per square meter. Material for the sides cost $9 per square meter. Find the cost of materials for the cheapest such container.