Answer :
Final answer:
The truck must make approximately 4.5 trips to deliver 45m³ of sand.
Explanation:
In order to calculate the number of trips the truck must make to deliver 45m³ of sand, we need to determine the volume of the truck's bed and divide it by the volume of sand that can be carried on a single trip. The volume of the truck's bed can be calculated as length x width x height, which in this case is 4m x 2.5m x 1m = 10m³. Dividing 45m³ by 10m³, we find that the truck must make approximately 4.5 trips to deliver the sand.
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